D4N
2014-09-27
: Pdf 41706-Attachment 41706-Attachment 006085 Batch8 unilog
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Safety Limit Switch
D4N
Upgraded Safety Limit Switches Based
on the Popular D4D, Providing a Full
Lineup Conforming to International
Standards
Note: Contact your sales representative for details on models
with safety standard certification.
■ Lineup includes three contact models with 2NC/1NO and 3NC
contact forms in addition to the previous contact forms 1NC/
1NO, and 2NC. Models with MBB contacts are also available.
■ M12-connector models are available, saving on labor and
simplifying replacement.
■ Standardized gold-clad contacts provide high contact reliability.
Can be used with both standard loads and microloads.
■ Conforms to EN115, EN81-1, and EN81-2 (slow-action models
only).
■ Lineup includes both slow-action and snap-action models with
Zb contacts.
■ Certified standards: UL, EN (TÜV), and CCC
Be sure to read the “Safety Precautions” on page 18
and the “Precautions for All Safety Limit Switches” .
Model Number Structure
Model Number Legend
D4N-@@@@
1 2
3
1. Conduit size
1: Pg13.5 (1-conduit)
2: G1/2 (1-conduit)
3: 1/2-14NPT (1-conduit)
4: M20 (1-conduit)
5: Pg13.5 (2-conduit)
6: G1/2 (2-conduit)
7: 1/2-14NPT (2-conduit)
8: M20 (2-conduit)
9: M12 connector (1-conduit)
2. Built-in Switch
1: 1NC/1NO (snap-action)
2: 2NC (snap-action)
A: 1NC/1NO (slow-action)
B: 2NC (slow-action)
C: 2NC/1NO (slow-action)
D: 3NC (slow-action)
E: 1NC/1NO (MBB contact) (slow-action)
F: 2NC/1NO (MBB contact) (slow-action)
http://www.ia.omron.com/
3. Head and Actuator
20: Roller lever (resin lever, resin roller)
22: Roller lever (metal lever, resin roller)
25: Roller lever (metal lever, metal roller)
26: Roller lever (metal lever, bearing roller)
2G: Adjustable roller lever, form lock (metal lever, resin roller)
2H: Adjustable roller lever, form lock (metal lever, rubber roller)
31: Top Plunger
32: Top Roller Plunger
62: One-way roller arm lever (horizontal)
72: One-way roller arm lever (vertical)
80: Cat whisker
87: Plastic rod
RE: Fork lever lock (right operation)
LE: Fork lever lock (left operation)
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
1
D4N
Ordering Information
List of Models
Switches with Two Contacts (with Direct Opening Mechanism)
Actuator
Built-in switch mechanism
2NC
1NC/1NO
(Snap-action)
(Slow-action)
Direct
Direct
Model
Model
opening
opening
D4N-1220
D4N-1A20
D4N-2220
D4N-2A20
D4N-3220
D4N-3A20
D4N-4220
D4N-4A20
D4N-9220
D4N-9A20
D4N-5220
D4N-5A20
D4N-6220
D4N-6A20
D4N-8220
D4N-8A20
D4N-1222
D4N-1A22
D4N-2222
D4N-2A22
D4N-3222
D4N-3A22
D4N-4222
D4N-4A22
D4N-9222
D4N-9A22
D4N-5222
D4N-5A22
D4N-6222
D4N-6A22
D4N-8222
D4N-8A22
D4N-1225
D4N-1A25
D4N-2225
D4N-2A25
D4N-3225
D4N-3A25
D4N-4225
D4N-4A25
D4N-9225
D4N-9A25
D4N-1226
D4N-1A26
D4N-2226
D4N-2A26
D4N-3226
D4N-3A26
D4N-4226
D4N-4A26
D4N-9226
D4N-9A26
D4N-1231
D4N-1A31
D4N-2231
D4N-2A31
D4N-3231
D4N-3A31
D4N-4231
D4N-4A31
D4N-9231
D4N-9A31
D4N-5231
D4N-5A31
D4N-6231
D4N-6A31
D4N-8231
D4N-8A31
D4N-1232
D4N-1A32
D4N-2232
D4N-2A32
D4N-3232
D4N-3A32
D4N-4232
D4N-4A32
D4N-9232
D4N-9A32
D4N-5232
D4N-5A32
D4N-6232
D4N-6A32
D4N-8232
D4N-8A32
D4N-1262
D4N-1A62
D4N-2262
D4N-2A62
D4N-3262
D4N-3A62
D4N-4262
D4N-4A62
D4N-9262
D4N-9A62
D4N-5262
D4N-5A62
D4N-6262
D4N-6A62
D4N-8262
D4N-8A62
D4N-1272
D4N-1A72
D4N-2272
D4N-2A72
D4N-3272
D4N-3A72
D4N-4272
D4N-4A72
D4N-9272
D4N-9A72
D4N-5272
D4N-5A72
D4N-6272
D4N-6A72
D4N-8272
D4N-8A72
D4N-122G
D4N-1A2G
D4N-222G
D4N-2A2G
D4N-322G
D4N-3A2G
D4N-422G
D4N-4A2G
D4N-922G
D4N-9A2G
D4N-622G
D4N-6A2G
D4N-822G
D4N-8A2G
D4N-122H
D4N-1A2H
D4N-222H
D4N-2A2H
D4N-322H
D4N-3A2H
D4N-422H
D4N-4A2H
D4N-922H
D4N-9A2H
2NC
(Slow-action)
Direct
Model
opening
D4N-1B20
D4N-2B20
D4N-3B20
D4N-4B20
D4N-9B20
D4N-5B20
D4N-6B20
D4N-8B20
D4N-1B22
D4N-2B22
D4N-3B22
D4N-4B22
D4N-9B22
D4N-5B22
D4N-6B22
D4N-8B22
D4N-1B25
D4N-2B25
D4N-3B25
D4N-4B25
D4N-9B25
D4N-1B26
D4N-2B26
D4N-3B26
D4N-4B26
D4N-9B26
D4N-1B31
D4N-2B31
D4N-3B31
D4N-4B31
D4N-9B31
D4N-5B31
D4N-6B31
D4N-8B31
D4N-1B32
D4N-2B32
D4N-3B32
D4N-4B32
D4N-9B32
D4N-5B32
D4N-6B32
D4N-8B32
D4N-1B62
D4N-2B62
D4N-3B62
D4N-4B62
D4N-9B62
D4N-5B62
D4N-6B62
D4N-8B62
D4N-1B72
D4N-2B72
D4N-3B72
D4N-4B72
D4N-9B72
D4N-5B72
D4N-6B72
D4N-8B72
D4N-1B2G
D4N-2B2G
D4N-3B2G
D4N-4B2G
D4N-9B2G
D4N-6B2G
D4N-8B2G
D4N-1B2H
D4N-2B2H
D4N-3B2H
D4N-4B2H
D4N-9B2H
G1/2
D4N-612H
D4N-622H
D4N-6A2H
D4N-6B2H
M20
D4N-812H
D4N-822H
D4N-8A2H
D4N-8B2H
Conduit size
Roller lever (resin
lever, resin roller)
1-conduit
2-conduit
Roller lever (metal
lever, resin roller)
1-conduit
2-conduit
Roller lever (metal
lever, metal roller)
1-conduit
Roller lever (metal
lever, bearing roller)
1-conduit
Plunger
1-conduit
2-conduit
Roller plunger
1-conduit
2-conduit
One-way roller arm
lever (horizontal)
1-conduit
2-conduit
One-way roller arm
lever (vertical)
1-conduit
2-conduit
Adjustable roller
lever, form lock
(metal lever, resin
roller)
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
Pg13.5
G1/2
M20
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
Pg13.5
G1/2
M20
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
Pg13.5
G1/2
M20
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
Pg13.5
G1/2
M20
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
Pg13.5
G1/2
M20
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
Pg13.5
G1/2
M20
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
G1/2
M20
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
1NC/1NO
(Snap-action)
Direct
Model
opening
D4N-1120
D4N-2120
D4N-3120
D4N-4120
D4N-9120
D4N-5120
D4N-6120
D4N-8120
D4N-1122
D4N-2122
D4N-3122
D4N-4122
D4N-9122
D4N-5122
D4N-6122
D4N-8122
D4N-1125
D4N-2125
D4N-3125
D4N-4125
D4N-9125
D4N-1126
D4N-2126
D4N-3126
D4N-4126
D4N-9126
D4N-1131
D4N-2131
D4N-3131
D4N-4131
D4N-9131
D4N-5131
D4N-6131
D4N-8131
D4N-1132
D4N-2132
D4N-3132
D4N-4132
D4N-9132
D4N-5132
D4N-6132
D4N-8132
D4N-1162
D4N-2162
D4N-3162
D4N-4162
D4N-9162
D4N-5162
D4N-6162
D4N-8162
D4N-1172
D4N-2172
D4N-3172
D4N-4172
D4N-9172
D4N-5172
D4N-6172
D4N-8172
D4N-112G
D4N-212G
D4N-312G
D4N-412G
D4N-912G
D4N-612G
D4N-812G
D4N-112H
D4N-212H
D4N-312H
D4N-412H
D4N-912H
1-conduit
2-conduit
Adjustable roller
lever, form lock
(metal lever, rubber 1-conduit
roller)
2-conduit
Note: It is recommended that M20 be used for Switches to be exported to Europe and 1/2-14NPT be used for Switches to be exported to North American countries.
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
2
D4N
Switches with Three Contacts and MBB Contacts (with Direct Opening Mechanism)
Actuator
1-conduit
2-conduit
Roller lever (metal
lever, resin roller)
1-conduit
2-conduit
Roller lever (metal
lever, metal roller)
1-conduit
Roller lever (metal
lever, bearing roller)
1-conduit
Plunger
1-conduit
2-conduit
Roller plunger
1-conduit
2-conduit
One-way roller arm
lever (horizontal)
1-conduit
2-conduit
One-way roller arm
lever (vertical)
1-conduit
2-conduit
1-conduit
2-conduit
Adjustable roller
lever, form lock
(metal lever, rubber
roller)
Built-in switch mechanism
3NC
1NC/1NO MBB
(Slow-action)
(Slow-action)
Direct
Direct
Model
Model
opening
opening
D4N-1D20
D4N-1E20
D4N-2D20
D4N-2E20
D4N-3D20
D4N-3E20
D4N-4D20
D4N-4E20
--D4N-9E20
D4N-5D20
D4N-5E20
D4N-6D20
D4N-6E20
D4N-8D20
D4N-8E20
D4N-1D22
D4N-1E22
D4N-2D22
D4N-2E22
D4N-3D22
D4N-3E22
D4N-4D22
D4N-4E22
--D4N-9E22
D4N-5D22
D4N-5E22
D4N-6D22
D4N-6E22
D4N-8D22
D4N-8E22
D4N-1D25
D4N-1E25
D4N-2D25
D4N-2E25
D4N-3D25
D4N-3E25
D4N-4D25
D4N-4E25
--D4N-9E25
D4N-1D26
D4N-1E26
D4N-2D26
D4N-2E26
D4N-3D26
D4N-3E26
D4N-4D26
D4N-4E26
--D4N-9E26
D4N-1D31
D4N-1E31
D4N-2D31
D4N-2E31
D4N-3D31
D4N-3E31
D4N-4D31
D4N-4E31
--D4N-9E31
D4N-5D31
D4N-5E31
D4N-6D31
D4N-6E31
D4N-8D31
D4N-8E31
D4N-1D32
D4N-1E32
D4N-2D32
D4N-2E32
D4N-3D32
D4N-3E32
D4N-4D32
D4N-4E32
--D4N-9E32
D4N-5D32
D4N-5E32
D4N-6D32
D4N-6E32
D4N-8D32
D4N-8E32
D4N-1D62
D4N-1E62
D4N-2D62
D4N-2E62
D4N-3D62
D4N-3E62
D4N-4D62
D4N-4E62
--D4N-9E62
D4N-5D62
D4N-5E62
D4N-6D62
D4N-6E62
D4N-8D62
D4N-8E62
D4N-1D72
D4N-1E72
D4N-2D72
D4N-2E72
D4N-3D72
D4N-3E72
D4N-4D72
D4N-4E72
--D4N-9E72
D4N-5D72
D4N-5E72
D4N-6D72
D4N-6E72
D4N-8D72
D4N-8E72
D4N-1D2G
D4N-1E2G
D4N-2D2G
D4N-2E2G
D4N-3D2G
D4N-3E2G
D4N-4D2G
D4N-4E2G
--D4N-9E2G
D4N-6D2G
D4N-6E2G
D4N-8D2G
D4N-8E2G
D4N-1D2H
D4N-1E2H
D4N-2D2H
D4N-2E2H
D4N-3D2H
D4N-3E2H
D4N-4D2H
D4N-4E2H
--D4N-9E2H
2NC/1NO MBB
(Slow-action)
Direct
Model
opening
D4N-1F20
D4N-2F20
D4N-3F20
D4N-4F20
--D4N-5F20
D4N-6F20
D4N-8F20
D4N-1F22
D4N-2F22
D4N-3F22
D4N-4F22
--D4N-5F22
D4N-6F22
D4N-8F22
D4N-1F25
D4N-2F25
D4N-3F25
D4N-4F25
--D4N-1F26
D4N-2F26
D4N-3F26
D4N-4F26
--D4N-1F31
D4N-2F31
D4N-3F31
D4N-4F31
--D4N-5F31
D4N-6F31
D4N-8F31
D4N-1F32
D4N-2F32
D4N-3F32
D4N-4F32
--D4N-5F32
D4N-6F32
D4N-8F32
D4N-1F62
D4N-2F62
D4N-3F62
D4N-4F62
--D4N-5F62
D4N-6F62
D4N-8F62
D4N-1F72
D4N-2F72
D4N-3F72
D4N-4F72
--D4N-5F72
D4N-6F72
D4N-8F72
D4N-1F2G
D4N-2F2G
D4N-3F2G
D4N-4F2G
--D4N-6F2G
D4N-8F2G
D4N-1F2H
D4N-2F2H
D4N-3F2H
D4N-4F2H
---
G1/2
D4N-6C2H
D4N-6D2H
D4N-6E2H
D4N-6F2H
M20
D4N-8C2H
D4N-8D2H
D4N-8E2H
D4N-8F2H
Conduit size
Roller lever (resin
lever, resin roller)
Adjustable roller
lever, form lock
(metal lever, resin
roller)
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
Pg13.5
G1/2
M20
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
Pg13.5
G1/2
M20
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
Pg13.5
G1/2
M20
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
Pg13.5
G1/2
M20
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
Pg13.5
G1/2
M20
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
Pg13.5
G1/2
M20
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
G1/2
M20
Pg13.5
G1/2
1/2-14NPT
M20
M12 connector
2NC/1NO
(Slow-action)
Direct
Model
opening
D4N-1C20
D4N-2C20
D4N-3C20
D4N-4C20
--D4N-5C20
D4N-6C20
D4N-8C20
D4N-1C22
D4N-2C22
D4N-3C22
D4N-4C22
--D4N-5C22
D4N-6C22
D4N-8C22
D4N-1C25
D4N-2C25
D4N-3C25
D4N-4C25
--D4N-1C26
D4N-2C26
D4N-3C26
D4N-4C26
--D4N-1C31
D4N-2C31
D4N-3C31
D4N-4C31
--D4N-5C31
D4N-6C31
D4N-8C31
D4N-1C32
D4N-2C32
D4N-3C32
D4N-4C32
--D4N-5C32
D4N-6C32
D4N-8C32
D4N-1C62
D4N-2C62
D4N-3C62
D4N-4C62
--D4N-5C62
D4N-6C62
D4N-8C62
D4N-1C72
D4N-2C72
D4N-3C72
D4N-4C72
--D4N-5C72
D4N-6C72
D4N-8C72
D4N-1C2G
D4N-2C2G
D4N-3C2G
D4N-4C2G
--D4N-6C2G
D4N-8C2G
D4N-1C2H
D4N-2C2H
D4N-3C2H
D4N-4C2H
---
1-conduit
2-conduit
Note: It is recommended that M20 be used for Switches to be exported to Europe and 1/2-14NPT be used for Switches to be exported to North American countries.
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
3
D4N
General-purpose Switches with Two Contacts
Built-in switch mechanism
Actuator
1NC/1NO
(Snap-action)
Conduit size
Model
Fork lever lock
(right operation)
2NC
(Snap-action)
Direct
opening
Direct
opening
Model
---
1/2-14NPT
---
M20
2-conduit
Fork lever lock (left
operation)
G1/2
1-conduit
-----
-----
Cat whisker
1-conduit
2-conduit
Plastic rod
1-conduit
2-conduit
D4N-6ARE
D4N-8ARE
---
D4N-3ALE
---
M20
G1/2
D4N-2180
1/2-14NPT
D4N-3180
M20
D4N-4180
G1/2
D4N-6180
M20
D4N-8180
G1/2
D4N-2187
1/2-14NPT
D4N-3187
M20
D4N-4187
G1/2
D4N-6187
M20
D4N-8187
---
D4N-6ALE
D4N-8ALE
---
---
---
---
D4N-3BLE
---
D4N-6BLE
D4N-8BLE
---
D4N-3B80
---
D4N-4B80
D4N-6280
---
D4N-8280
-----
D4N-3287
D4N-6B80
D4N-8B80
---
D4N-2B87
---
---
D4N-4287
---
D4N-6BRE
D4N-8BRE
D4N-2B80
---
D4N-3280
D4N-2287
---
---
D4N-4BLE
D4N-4280
---
D4N-3BRE
D4N-2BLE
---
D4N-2280
---
Direct
opening
D4N-4BRE
D4N-4ALE
G1/2
Model
D4N-2BRE
---
D4N-2ALE
---
1/2-14NPT
M20
2-conduit
D4N-3ARE
2NC
(Slow-action)
Direct
opening
D4N-4ARE
G1/2
M20
Model
D4N-2ARE
G1/2
1-conduit
1NC/1NO
(Slow-action)
D4N-3B87
---
D4N-4B87
D4N-6287
---
D4N-8287
---
D4N-6B87
D4N-8B87
---
Note: 1. It is recommended that M20 be used for Switches to be exported to Europe and 1/2-14NPT be used for Switches to be exported to North
American countries.
2. Mechanically speaking, these models are basic limit switches.
General-purpose Switches with Three Contacts and MBB Contacts
Built-in switch mechanism
Actuator
2NC/1NO
(Slow-action)
Conduit size
Model
Fork lever lock
(right operation)
1-conduit
2-conduit
Fork lever lock
(left operation)
1-conduit
2-conduit
Cat whisker
G1/2
D4N-2CRE
1/2-14NPT
D4N-3CRE
M20
D4N-4CRE
G1/2
D4N-6CRE
M20
D4N-8CRE
G1/2
D4N-2CLE
1/2-14NPT
D4N-3CLE
M20
D4N-4CLE
G1/2
D4N-6CLE
M20
D4N-8CLE
Direct
opening
---
Plastic rod
1/2-14NPT
G1/2
M20
D4N-3DLE
---
D4N-6DLE
D4N-8DLE
Direct
opening
---
D4N-6ERE
D4N-8ERE
D4N-3ELE
---
D4N-6ELE
D4N-8ELE
D4N-3FRE
---
D4N-6FRE
D4N-8FRE
---
D4N-2FLE
---
D4N-4ELE
---
Direct
opening
D4N-4FRE
D4N-2ELE
---
Model
D4N-2FRE
---
D4N-4ERE
D4N-4DLE
D4N-3FLE
---
D4N-4FLE
---
D4N-6FLE
D4N-8FLE
---
D4N-3D80
---
---
---
D4N-4D80
-----
D4N-6D80
D4N-8D80
---
D4N-3D87
-----
D4N-2D87
---
M20
2-conduit
D4N-8DRE
D4N-3ERE
2NC/1NO MBB
(Slow-action)
D4N-2D80
G1/2
G1/2
1-conduit
D4N-6DRE
Model
D4N-2ERE
---
D4N-2DLE
---
---
1/2-14NPT
M20
D4N-3DRE
1NC/1NO MBB
(Slow-action)
Direct
opening
D4N-4DRE
M20
2-conduit
Model
D4N-2DRE
---
G1/2
1-conduit
3NC
(Slow-action)
-----
---
---
---
---
---
---
D4N-4D87
---
D4N-6D87
D4N-8D87
Note: 1. It is recommended that M20 be used for Switches to be exported to Europe and 1/2-14NPT be used for Switches to be exported to North
American countries.
2. Mechanically speaking, these models are basic limit switches.
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
4
D4N
Specifications
Standards and EC Directives
Certified Standard Ratings
Conforms to the following EC Directives:
TÜV (EN60947-5-1), CCC (GB14048.5)
x
x
x
x
x
x
Machinery Directive
Low Voltage Directive
EN50047
EN60204-1
EN1088
GS-ET-15
Rated operating current (Ie)
AC-15
3A
DC-13
0.27 A
Rated operating voltage (Ue) 240 V
250 V
Note: Use a 10 A fuse type gI or gG that conforms to IEC269 as a
short-circuit protection device. This fuse is not built into the
Switch.
Certified Standards
Certification
body
Utilization
category
Item
Standard
File No.
UL/CSA (UL508, CSA C22.2 No. 14)
A300
TÜV Product
Service
EN60947-5-1
(certified direct opening)
UL *2
UL508, CSA C22.2 No.14 E76675
CQC (CCC) *3
GB14048.5
*1
Rated
voltage
2004010305105973
120 VAC
*1. Consult your OMRON representative for details.
*2. Certification for CSA C22.2 No. 14 is authorized by the UL mark.
*3. Ask your OMRON representative for information on certified
models.
240 VAC
10 A
Current (A)
Make
Break
60
6
30
3
Volt-amperes (VA)
Make
7,200
Break
720
Q300
Rated
voltage
125 VDC
250 VDC
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Carry current
Carry current
2.5 A
Current (A)
Make
Break
0.55
0.55
0.27
0.27
Volt-amperes (VA)
Make
69
Break
69
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
5
D4N
Characteristics
Degree of protection *1
Durability *2
IP67 (EN60947-5-1)
Mechanical
15,000,000 operations min. *5
Electrical
500,000 operations min. (3 A resistive load at 250 VAC) *3
300,000 operations min. (10 A resistive load at 250 VAC)
Operating speed
1 to 500 mm/s (D4N-1120)
Operating frequency
30 operations/minute max.
Contact resistance
25 m: max.
Minimum applicable load *4
1 mA resistive load at 5 VDC (N-level reference value)
Rated insulation voltage (Ui)
300 V
Rated frequency
50/60 Hz
Protection against electric shock
Class II (double insulation)
Pollution degree (operating environment)
3 (EN60947-5-1)
Impulse withstand
voltage
(EN60947-5-1)
Between terminals of
same polarity
2.5 kV
Between terminals of
different polarity
4 kV
Between each terminal
and non-current carrying 6 kV
metallic parts
Insulation resistance
100 M: min.
Contact gap
Snap-action: 2 u 0.5 mm min.
Slow-action: 2 u 2 mm min.
Vibration resistance
Shock resistance
Malfunction
10 to 55 Hz, 0.75 mm single amplitude
Destruction
1,000 m/s2 min.
Malfunction
300 m/s2 min.
Conditional short-circuit current
100 A (EN60947-5-1)
Conventional free air thermal current (Ith)
10 A (EN60947-5-1)
Ambient operating temperature
30to 70qC (with no icing)
Ambient operating humidity
95% max.
Weight
Approx. 82 g (D4N-1120)
Approx. 99 g (D4N-5120)
Note: 1. The above values are initial values.
2. Once a contact has been used to switch a standard load, it cannot be used for a load of a smaller capacity.
Doing so may result in roughening of the contact surface and contact reliability may be lost.
*1. The degree of protection is tested using the method specified by the standard (EN60947-5-1). Confirm that sealing properties are sufficient for
the operating conditions and environment beforehand. Although the switch box is protected from dust or water penetration, do not use the D4N
in places where foreign material such as dust, dirt, oil, water, or chemicals may penetrate through the head. Otherwise, accelerated wear, Switch
damage or malfunctioning may occur.
*2. The durability is for an ambient temperature of 5 to 35qC and an ambient humidity of 40% to 70%. For more details, consult your
OMRON representative.
*3. Do not pass the 3 A, 250 VAC load through more than 2 circuits.
*4. This value will vary with the switching frequency, environment, and reliability level. Confirm that correct operation is possible with the actual load
beforehand.
*5. The mechanical durability of fork lever lock models is 10,000,000 operations min.
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
6
D4N
Structure and Nomenclature
Structure
Safety-oriented Lever Setting
(Form-lock construction)
Grooves which engage the lever are cut in the lever and
rotary shaft to prevent the lever from slipping against the
rotary shaft.
There are resin-lever and metal-lever types.
Head
The direction of the switch head can be varied to any of
the four directions. (Roller plunger models can be
mounted in either of two directions at a 90° angle.)
Conduit Opening
A wide variety of conduits is available.
Built-in Switch
The built-in switch has a direct opening mechanism
that forcibly separates the NC contact even when
there is contact deposit.
Cover
The cover, with a hinge on its lower part, can
be opened by removing the screw of the
cover, which ensures ease of maintenance
and wiring.
Size
1-conduit
2-conduit
Pg13.5
Box
Yes
Yes
G1/2
Yes
Yes
1/2-14NPT
Yes
Yes
M20
Yes
Yes
M12 connector
Yes
---
Note: M12 connector types are not available for
Switches with three contacts.
Direct Opening Mechanism
1NC/1NO Contact (Slow-action)
2NC Contact (Slow-action)
Fixed contact (NC)
Fixed contact (NC)
Movable contact
Contact spring
Contact spring
Movable contact
Plunger
Fixed contact (NO)
Plunger
Return spring
Return spring
Conforms to EN60947-5-1 Direct Opening Operation
Conforms to EN60947-5-1 Direct Opening Operation
(Only the NC contact side has a direct opening
mechanism.)
When contact welding occurs, the contacts are
separated from each other by the plunger being
pushed in.
(Both NC contacts have a direct opening
mechanism.)
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
7
D4N
Contact Form
Model
D4N-@1@
Contact
1NC/1NO
(Snap-action)
Contact form
13
Zb
31
14
2NC (Snap-action)
13-14
31-32
11
12
31
32
Remarks
ON
Stroke
32
Zb
D4N-@2@
Operating pattern
11-12
31-32
The terminals 13-14 and 31-32
can be used as unlike poles.
ON
Stroke
Zb
D4N-@A@
1NC/1NO
(Slow-action)
11
12
33
34
Zb
D4N-@B@
2NC (Slow-action)
11
12
31
32
11-12
33-34
ON
Stroke
11-12
31-32
D4N-@C@
2NC/1NO
(Slow-action)
12
ON
Stroke
21
22
33
34
11-12
21-22
33-34
ON
Stroke
Zb
D4N-@D@
3NC (Slow-action)
11
12
21
22
31
32
11-12
21-22
31-32
ON
D4N-@E@
11
12
33
34
11-12
33-34
ON
Stroke
D4N-@F@
2NC/1NO MBB *
(Slow-action)
12
21
22
33
34
11-12
21-22
33-34
ON
Stroke
Only NC contacts 11-12 and
31-32 have a certified direct
opening mechanism.
The terminals 11-12 and 31-32
can be used as unlike poles.
Only NC contacts 11-12 and
21-22 have a certified direct
opening mechanism.
The terminals 11-12, 21-22, and
33-34 can be used as unlike
poles.
Only NC contacts 11-12, 21-22,
and 31-32 have a certified direct
opening mechanism.
Only NC contacts 11-12 have a
certified direct opening
mechanism.
The terminals 11-12 and 33-34
can be used as unlike poles.
Zb
11
Only NC contacts 11-12 have a
certified direct opening
mechanism.
The terminals 11-12, 21-22, and
31-32 can be used as unlike
poles.
Stroke
Zb
1NC/1NO MBB *
(Slow-action)
Only NC contacts 11-12 and
31-32 have a certified direct
opening mechanism.
The terminals 11-12 and 31-32
can be used as unlike poles.
The terminals 11-12 and 33-34
can be used as unlike poles.
Zb
11
Only NC contacts 31-32 have a
certified direct opening
mechanism.
Only NC contacts 11-12 and
21-22 have a certified direct
opening mechanism.
The terminals 11-12, 21-22 and
33-34 can be used as unlike poles.
Note: Terminals are numbered according to EN50013 and the contact forms are according to IEC947-5-1.
* MBB (Make Before Break) contacts have an overlapping structure, so that before the normally closed contact (NC) opens, the normally open
contact (NO) closes.
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
8
D4N
Dimensions and Operating Characteristics
(Unit: mm)
Switches
1-conduit Models
Roller Lever (Resin Lever, Resin Roller)
D4N-1@20
D4N-2@20
D4N-3@20
D4N-4@20
47
40
17.5 dia. × 6.8
D4N-9@20 *
Roller Lever (Metal Lever, Resin Roller)
D4N-1@22
D4N-2@22
D4N-3@22
D4N-4@22
45±
D4N-9@22 *
39.5±
17.5 dia. × 6.8
±1
resin roller
1
±1
1
(27)
11±0.2
26R
Resin lever
11±0.2
26R
Metal lever
20.5 × 20.5
(31)
20.5 × 20.5
27.5
18
21.5
2.5
2.15±0.05R
mounting holes
22±0.2
31 max.
55
14.2
30
Conduit cap
Roller Lever (Metal Lever, Metal Roller)
D4N-1@25
D4N-2@25
D4N-3@25
D4N-4@25
45±
D4N-9@25 *
17.5 dia. × 7
sintered stainless
steel roller
20±0.1
22±0.1
47±0.2
Two, 4+0.15
dia. holes
0
Depth: 5
2.15±0.05R
mounting holes
22±0.2
31 max.
Conduit cap
14.2
30
1
1
1
Bearing roller
(31.5)
(31)
11±0.2
11±0.2
26R
Metal lever
20.5 × 20.5
20.5 × 20.5
18
27.5
27.5
9±0.2
9±0.2
2.5
21.5
2.5
20±0.1
22±0.1
47±0.2
55
47±0.2
21.5
20±0.1
22±0.1
2.15±0.05R
mounting holes
22±0.2
31 max.
Conduit cap
dia. holes
Two, 4+0.15
0
Depth: 5
Roller Lever (Metal Lever, Bearing Roller)
D4N-1@26
D4N-2@26
D4N-3@26
D4N-4@26
43.6±
D4N-9@26 *
39±
17 dia. × 6
39.5±1
26R
Metal lever
55
9±0.2
21.5
20±0.1
22±0.1
47±0.2
18
27.5
18
9±0.2
2.5
55
resin roller
14.2
30
2.15±0.05R
mounting holes
22±0.2
31 max.
Two, 4+0.15
dia. holes
0
Depth: 5
Conduit cap
14.2
30
Two, 4+0.15
dia. holes
0
Depth: 5
Note: Unless otherwise specified, a tolerance of r0.4 mm applies to all dimensions.
* Refer to page 12 for details on M12 connectors.
Snap-action (1NC/1NO) (2NC), Slow-action (2NC)
(3NC)
Model D4N-@120
D4N-@220
D4N-@B20
Operating characteristics
D4N-@D20
D4N-@122
D4N-@222
D4N-@B22
D4N-@D22
D4N-@125
D4N-@225
D4N-@B25
D4N-@D25
D4N-@126
D4N-@226
D4N-@B26
D4N-@D26
Slow-action (1NC/1NO) (2NC/1NO)
Model D4N-@A20
D4N-@C20
D4N-@E20
Operating characteristics
D4N-@F20
Operating force
OF max.
Release force
RF min.
0.5 N
0.5 N
PT *1
18q to 27q
PT (2nd) (44q)
*2
Operating force
OF max.
5.0 N
Release force
RF min.
Pretravel
PT
18q to 27q
Overtravel
OT min.
40q
Movement differential MD max.
*1
14q
Operating position
OP
---
Total travel
TT *2
(80q)
Direct opening travel DOT min.
*3
50q
Direct opening force DOF min.
*3
20 N
Note: Variation occurs in the simultaneity of contact opening/closing
operations of 2NC, 2NC/1NO, and 3NC contacts. Check contact
operation.
*1. Only for snap-action models.
*2. Reference value.
*3. For safe use, always make sure that the minimum values or greater
are provided.
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PT *3
D4N-@A22
D4N-@C22
D4N-@E22
D4N-@F22
D4N-@A25
D4N-@C25
D4N-@E25
D4N-@F25
D4N-@A26
D4N-@C26
D4N-@E26
D4N-@F26
5.0 N
27.5q to 36.5q
PT (2nd) (18q)
*4
Overtravel
OT min.
40q
Operating position OP
---
Total travel
(80q)
TT *5
Direct opening travel DOT min. 50q
*6
Direct opening force DOF min. 20 N
*6
*1. These PT values are possible when the NC contacts are open (OFF).
*2. These PT values are possible when the NO contacts are closed (ON).
*3. Only for MBB models.
*4. Reference values for MBB models only.
*5. Reference values.
*6. For safe use, always make sure that the minimum values or greater
are provided.
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
9
D4N
1-conduit Models
Plunger
D4N-1@31
D4N-3@31
D4N-9@31 *
Roller Plunger
D4N-1@32
D4N-2@32
D4N-3@32
D4N-4@32
D4N-9@32 *
D4N-2@31
D4N-4@31
25±0.1
Two, 3±0.05 dia.
holes
12 dia.
(31.5)
21.5
11±0.2
20.5 × 20.5
9.5 dia. × 5
resin roller
6-dia. resin
plunger
OP
20±0.1
22±0.1
47±0.2
22±0.2
31 max.
2.5
55
2.15±0.05R
mounting holes
Conduit cap
14.2
30
12.5 dia. × 5
resin roller
2.15±0.05R
mounting holes
dia. holes
Two, 4+0.15
0
Depth: 5
12 dia. × 5
resin roller
(31.5)
21.5
11±0.2
19.5±0.2
9±0.2
2.5
2.5
55
47±0.2
20±0.1
22±0.1
Conduit cap
14.2
30
2.15±0.05R
mounting holes
Operating
direction
55
22±0.2
31 max.
22±0.2
31 max.
14.2
30
10.2
10.2
47±0.2
OP
12
11±0.2
9±0.2
20±0.1
22±0.1
Conduit cap
19R 14.7
20R
23.3 19.5±0.2
2.15±0.05R
mounting holes
22±0.2
31 max.
(31.5)
21.5
11±0.2
14.8
13.5
20±0.1
22±0.1
One-way Roller Arm Lever
(Vertical)
D4N-1@72
D4N-2@72
D4N-3@72
D4N-4@72
D4N-9@72 *
Operating direction
11±0.2
47±0.2
Two, 4+0.15
dia. holes
0
Depth: 5
One-way Roller Arm Lever
(Horizontal)
D4N-1@62
D4N-2@62
D4N-3@62
D4N-4@62
D4N-9@62 *
OP
25.2
9±0.2
9±0.2
2.5
55
OP
(31.5)
21.5
11±0.2
Two, 4+0.15
dia. holes
0
Depth: 5
Conduit cap
14.2
30
Two, 4+0.15
dia. holes
0
Depth: 5
Note: Unless otherwise specified, a tolerance of r0.4 mm applies to all dimensions.
* Refer to page 12 for details on M12 connectors.
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
10
D4N
Snap-action (1NC/1NO) (2NC), Slow-action (2NC) (3NC)
Operating characteristics
Model D4N-@131
D4N-@231
D4N-@B31
D4N-@D31
D4N-@132
D4N-@232
D4N-@B32
D4N-@D32
D4N-@162
D4N-@262
D4N-@B62
D4N-@D62
D4N-@172
D4N-@272
D4N-@B72
D4N-@D72
Operating force
OF max.
6.5 N
6.5 N
5.0 N
5.0 N
Release force
RF min.
1.5 N
1.5 N
0.8 N
0.8 N
Pretravel
PT max.
2 mm
2 mm
4 mm
4 mm
Overtravel
OT min.
4 mm
4 mm
5 mm
5 mm
Movement differential
MD max. *1
1 mm
1 mm
1.5 mm
Operating position
OP
18.2 r0.5 mm 28.6 r0.8 mm 37 r0.8 mm
Total travel
TT *2
(6 mm)
(6 mm)
(9 mm)
(9 mm)
Direct opening travel
DOT min. *3
3.2 mm
3.2 mm
5.8 mm
4.8 mm
Direct opening force
DOF min. *3
20 N
20 N
20 N
20 N
D4N-@A32
D4N-@C32
D4N-@E32
D4N-@F32
D4N-@A62
D4N-@C62
D4N-@E62
D4N-@F62
D4N-@A72
D4N-@C72
D4N-@E72
D4N-@F72
6.5 N
5.0 N
5.0 N
1.5 mm
27 r0.8 mm
Note: Variation occurs in the simultaneity
of contact opening/closing
operations of 2NC, 2NC/1NO, and
3NC contacts. Check contact
operation.
*1. Only for snap-action models.
*2. Reference value.
*3. For safe use, always make sure that
the minimum values or greater are
provided.
Slow-action (1NC/1NO) (2NC/1NO)
Operating characteristics
Model D4N-@A31
D4N-@C31
D4N-@E31
D4N-@F31
Operating force
OF max.
6.5 N
Release force
RF min.
1.5 N
1.5 N
0.8 N
Pretravel
PT max. *1
2 mm
2 mm
4 mm
PT (2nd) *2
(2.9 mm)
(2.9 mm)
(5.2 mm)
PT max. *3
2.8 mm
2.8 mm
4 mm
PT (2nd) *4
(1 mm)
(1 mm)
(1.5 mm)
Overtravel
OT min.
4 mm
4 mm
5 mm
Operating position
OP
18.2 r0.5 mm 28.6 r0.8 mm 37 r0.8 mm
OP *5
17.4 r0.5 mm 28 r0.8 mm
36 r0.8 mm
Total travel
TT *6
(6 mm)
(6 mm)
(9 mm)
Direct opening travel
DOT min. *7
3.2 mm
3.2 mm
5.8 mm
*1. These PT values are possible when
the NC contacts are open (OFF).
*2. These PT values are possible when
(4.3 mm)
the NO contacts are closed (ON).
4 mm
*3. Only for MBB models.
(1.5 mm)
*4. Reference values for MBB models.
5 mm
*5. Only for MBB models.
27 r0.8 mm *6. Reference value.
26.1 r0.8 mm *7. For safe use, always make sure that
the minimum values or greater are
(9 mm)
provided.
4.8 mm
Direct opening force
DOF min. *7
20 N
20 N
20 N
20 N
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0.8 N
4 mm
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
11
D4N
1-conduit Models
Adjustable Roller Lever, Form Lock
(with Metal Lever, Resin Roller)
D4N-1@2G
D4N-2@2G
D4N-3@2G
D4N-4@2G
17.5 dia. × 6.8
D4N-9@2G *
Adjustable Roller Lever, Form Lock
(with Metal Lever, Rubber Roller)
D4N-1@2H
D4N-2@2H
D4N-3@2H
D4N-4@2H
50 dia. × 8
D4N-9@2H *
rubber roller
45±1
39.5±1
resin roller
(31)
20.5 × 20.5
11±0.2
32 to 66R
20.5 × 20.5
27.5
9±0.2
18
21.5
2.5
55
(29.2)
Bearing
11±0.2
20 to 66R
18
48.2±1
41.3±1
27.5
9±0.2
47±0.2
20±0.1
22±0.1
22±0.2
31 max.
21.5
2.5
2.15±0.05R
mounting holes
55
47±0.2
20±0.1
22±0.1
Stainless steel
lever
14.2
dia. holes
Two, 4+0.15
0
30
Conduit cap
2.15±0.05R
mounting holes
Depth: 5
22±0.2
31 max.
Conduit cap
14.2
30
Two, 4+0.15
dia. holes
0
Depth: 5
Note: Unless otherwise specified, a tolerance of r0.4 mm applies to all dimensions.
* Refer to following diagrams for details on M12 connectors.
Snap-action (1NC/1NO) (2NC), Slow-action (2NC) (3NC)
Model D4N-@12H
D4N-@22H
D4N-@B2H
D4N-@D2H
Operating characteristics
Operating force
OF max.
4.5 N
Release force
RF min.
0.4 N
Pretravel
PT
18q to 27q
Overtravel
OT min.
40q
Movement differential
MD max. *2
14q
Operating position
OP
---
Total travel
TT *3
(80q)
Direct opening travel
DOT min. *4
50q
Direct opening force
DOF min. *4
20 N
D4N-@12G
D4N-@22G
D4N-@B2G
D4N-@D2G
*1
Note: Variation occurs in the simultaneity of contact
opening/closing operations of 2NC, 2NC/1NO, and
3NC contacts. Check contact operation.
*1. The operating characteristics of these Switches were
measured with the roller lever set at 32 mm.
*2. Only for snap-action models.
*3. Reference value.
*4. For safe use, always make sure that the minimum values
or greater are provided.
Slow-action (1NC/1NO) (2NC/1NO)
Model D4N-@A2H
D4N-@C2H
D4N-@E2H
D4N-@F2H
Operating characteristics
Operating force
OF max.
4.5 N
Release force
RF min.
0.4 N
Pretravel
PT *2
18q to 27q
PT (2nd) *3
(44q)
PT *4
27.5q to 36.5q
PT (2nd) *5
(18q)
Overtravel
OT min.
40q
Operating position
OP
---
Total travel
TT *6
(80q)
Direct opening travel
DOT min.
50q
Direct opening force
DOF min. *7
20 N
D4N-@A2G
D4N-@C2G
D4N-@E2G
D4N-@F2G
*1
*1. The operating characteristics of these Switches were
measured with the roller lever set at 32 mm.
*2. This PT value is possible when the NC contacts are open
(OFF).
*3. This PT value is possible when the NO contacts are
closed (ON).
*4. Only for MBB models.
*5. Reference value for MBB models only.
*6. Reference value.
*7. For safe use, always make sure that the minimum values
or greater are provided.
1-conduit M12 Connector
D4N-9@@@
(14)
M12 × 1
14.2
30
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
12
D4N
1-conduit Models
Fork Lever Lock
(Right Operation)
D4N-1@RE
D4N-2@RE
D4N-3@RE
D4N-4@RE
Fork Lever Lock
(Left Operation)
D4N-1@LE
D4N-2@LE
D4N-3@LE
D4N-4@LE
Two, 17.5 dia.
× 8 rubber
rollers
47 max.
39.3±1
47 max.
39.3±1
90°
90°
11±0.2
11±0.2
26R
Two, 17.5 dia. ×
8 rubber rollers
(27.2)
(27.2)
26R
20.5 × 20.5
20.5 × 20.5
27.5
27.5
18
21.5
20±0.1
22±0.1
47±0.2
2.15±0.05R
mounting holes
2.15±0.05R
mounting
holes
22±0.2
Conduit cap
31 max.
Cat Whisker
D4N-1@80
D4N-3@80
14.2
30
dia. holes
Two, 4+0.15
0
Depth: 5
20.5 × 20.5
dia. holes 14.2
Two, 4+0.15
0
30
Depth: 5
Plastic Rod
D4N-1@87
D4N-3@87
D4N-2@80
D4N-4@80
PT
42
20.5 ×
20.5
21.5
Sealing cap
12±0.2
47±0.2
20±0.1
22±0.1
2.15±0.05R
mounting holes
2.15±0.05R
mounting holes
22±0.2
31 max.
14.2
Two, 4+0.15
dia. holes
0
30
11±0.2
9±0.2
2.5
55
(31.5)
22±0.2
31 max.
PT
16.6 dia.
20±0.1
22±0.1
Conduit cap
55
16.6 dia.
9±0.2
22±0.2
31 max.
47±0.2
Resin rod *
21.5
11±0.2
47±0.2
2.5
D4N-2@87
D4N-4@87
115
143.1
(50.1)
2.5
Conduit cap
38
1.2-dia.
stainless
steel wire *
Sealing cap
55
20±0.1
22±0.1
21.5
2.5
55
18
9±0.2
9±0.2
Conduit cap
Depth: 5
14.2
30
(31.5)
Two, 4+0.15
dia. holes
0
Depth: 5
Note: Unless otherwise specified, a tolerance of r0.4 mm applies to all dimensions.
* The usable range for stainless steel wires and resin rods is 35 mm max. from the end with a total travel of 70 mm max.
Slow-action (1NC/1NO) (2NC/1NO) (2NC) (3NC)
Model
Operating characteristics
D4N-@@RE
D4N-@@LE
Force necessary to reverse
the direction of the lever:
max.
6.4 N
6.4 N
Movement until the lever
reverses
55r10q
55r10q
Movement until switch
operation (NC)
(6.5q
(MBB: 10q)
(6.5q
(MBB: 10q)
Movement until switch
operation (NO)
(18.5q
(MBB: 5q)
(18.5q
(MBB: 5q)
Note: Variation occurs in the simultaneity of contact opening/closing
operations of 2NC, 2NC/1NO, and 3NC contacts. Check
contact operation.
Snap-action (1NC/1NO) (2NC), Slow-action (2NC) (3NC)
Model
Operating characteristics
D4N-@@80
D4N-@@87
Operating force
OF max.
1.5 N
1.5 N
Pretravel
PT max.
15q
15q
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
13
D4N
2-conduit Models
Roller Lever (Resin Lever, Resin Roller)
D4N-5@20
17.5 dia. × 6.8
D4N-6@20
resin roller
D4N-8@20
26R
(27)
11±0.2
Resin lever
18
Roller Lever (Metal Lever, Resin Roller)
D4N-5@22
D4N-6@22
17.5 dia. × 6.8
D4N-8@22
resin roller
47±1
40±1
20.5 × 20.5
5.4
2.5
2.15±0.05R
mounting
holes
Conduit
cap
25 dia.
18
20.5
(3)
2.15±0.05R
mounting
holes
Conduit cap
14.2
30
(31.5)
21.5
11±0.2
Two, 3±0.05
dia. holes
6-dia. resin plunger
OP
5.4
27.5
20±0.1
22±0.1
40±0.1
42±0.1
42±0.2
56 max.
(3)
14.2
30
9.5 dia. × 5
resin roller
2.5
9±0.2
25 dia.
2.15±0.05R
mounting
holes
20.5
39±0.2
42±0.2
56 max.
(31.5)
21.5
11±0.2
20.5 × 20.5
5.4
47
Conduit cap
Cap
Conduit cap
47
Cap
OP 25.2
9±0.2
2.15±0.05R
mounting
holes
20.5
39±0.2
25 dia.
2.5
20±0.1
22±0.1
40±0.1
42±0.1
21.5
Two, 4+0.15
dia. holes
0
Depth: 5
Roller Plunger
D4N-5@32
D4N-6@32
D4N-8@32
25±0.1
2.5
9±0.2
Two, 4+0.15
dia. holes
0
Depth: 5
12 dia.
20.5 × 20.5
5.4
47
Cap
Plunger
D4N-5@31
D4N-6@31
D4N-8@31
11±0.2
27.5
39±0.2
42±0.2
56 max.
(31)
26R
Metal lever
21.5
9±0.2
20±0.1
22±0.1
40±0.1
42±0.1
45±1
39.5±1
(3)
20±0.1
22±0.1
40±0.1
42±0.1
20.5
39±0.2
25 dia.
47
Cap
42±0.2
56 max.
(3)
14.2
30
14.2
30
Two, 4+0.15
dia. holes
0
Depth: 5
Two, 4+0.15
dia. holes
0
Depth: 5
Note: Unless otherwise specified, a tolerance of r0.4 mm applies to all dimensions.
Snap-action (1NC/1NO) (2NC), Slow-action (2NC)
(3NC)
Model D4N-@120
D4N-@220
D4N-@B20
Operating characteristics D4N-@D20
D4N-@122
D4N-@222
D4N-@B22
D4N-@D22
D4N-@131
D4N-@231
D4N-@B31
D4N-@D31
Slow-action (1NC/1NO) (2NC/1NO)
Model D4N-@A20
D4N-@C20
D4N-@E20
Operating characteristics D4N-@F20
5N
6.5 N
6.5 N
RF min. 0.5 N
0.5 N
1.5 N
1.5 N
PT *1
OF max. 5 N
5N
6.5 N
6.5 N
Release force
RF min. 0.5 N
0.5 N
1.5 N
1.5 N
Pretravel
Pretravel
PT
18q to 27q 18q to 27q 2 mm
2 mm
Overtravel
OT min. 40q
40q
4 mm
4 mm
Movement differential
MD max. 14q
*1
14q
1 mm
1 mm
Operating position OP
---
18
r0.5 mm
28.2
r0.8 mm
TT *2
(80q)
(80q)
(6 mm)
(6 mm)
Direct opening travel
DOT min. 50q
*3
50q
3.2 mm
3.2 mm
Direct opening force
DOF min. 20 N
*3
20 N
20 N
20 N
Overtravel
27.5q to
36.5q
(44q)
(2.9 mm)
2 mm
(2.9 mm)
27.5q to
36.5q
2.8 mm
2.8 mm
PT (2nd) (18q)
*4
(18q)
(1 mm)
(1 mm)
OT min. 40q
40q
4 mm
4 mm
---
---
18
r0.5 mm
28.2
r0.8 mm
OP *5
---
---
17.4
r0.5 mm
28
r0.8 mm
TT *6
(80q)
Operating position OP
Total travel
Note: Variation occurs in the simultaneity of contact opening/closing
operations of 2NC, 2NC/1NO, and 3NC contacts. Check
contact operation.
*1. Only for snap-action models.
*2. Reference value.
*3. For safe use, always make sure that the minimum values or greater
are provided.
18q to 27q 18q to 27q 2 mm
PT (2nd) (44q)
*2
PT *3
http://www.ia.omron.com/
D4N-@A32
D4N-@C32
D4N-@E32
D4N-@F32
OF max. 5 N
Operating force
Total travel
D4N-@A31
D4N-@C31
D4N-@E31
D4N-@F31
Operating force
Release force
---
D4N-@A22
D4N-@C22
D4N-@E22
D4N-@F22
D4N-@132
D4N-@232
D4N-@B32
D4N-@D32
(80q)
(6 mm)
(6 mm)
Direct opening travel
DOT min. 50q
*7
50q
3.2 mm
3.2 mm
Direct opening force
DOF min. 20 N
*7
20 N
20 N
20 N
*1. This PT value is possible when the NC contacts are open (OFF).
*2. This PT value is possible when the NO contacts are closed (ON).
*3. Only for MBB models.
*4. Reference value for MBB models.
*5. Only for MBB models.
*6. Reference value.
*7. For safe use, always make sure that the minimum values or
greater are provided.
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
14
D4N
2-conduit Models
One-way Roller Arm Lever
Operating direction
(Horizontal)
14.8
D4N-5@62
12 dia. x 5
D4N-6@62
11±0.2
resin roller
D4N-8@62
13.5
OP
One-way Roller Arm Lever
(Vertical)
D4N-5@72
D4N-6@72
OP
12
D4N-8@72
11±0.2
(31.5)
21.5
11±0.2
20R
19R
2.5
20±0.1
22±0.1
40±0.1
42±0.1
10.2
5.4
Cap
(3)
2.15±0.05R
mounting
holes
Conduit cap
14.2
30
Two, 4+0.15
dia. holes
0
Depth: 5
Adjustable Roller Lever, Form Lock
(with Metal Lever, Resin Roller)
D4N-6@2G
17.5 dia. × 6.8
resin roller
D4N-8@2G
18
20±0.1
22±0.1
40±0.1
42±0.1
Operating
direction
(3)
14.2
30
Two, 4+0.15
dia. holes
0
Depth: 5
48.2±1
41.3±1
(29.2)
11±0.2
32 to 66R
Stainless
steel lever
2.15±0.05R
mounting holes
27.5
21.5
9±0.2
18
5.4
47
27.5
9±0.2
Conduit cap
(3)
21.5
20.5
39±0.2
20±0.1
22±0.1
40±0.1
42±0.1
Cap
20.5 × 20.5
2.5
20.5
39±0.2
42±0.2
56 max.
20.5
47
11±0.2
2.5
25 dia.
25 dia.
Cap
42±0.2
56 max.
20.5 × 20.5
20±0.1
22±0.1
40±0.1
42±0.1
21.5
39±0.2
Adjustable Roller Lever, Form Lock
(with Metal Lever, Rubber Roller)
D4N-6@2H
50 dia. × 8
rubber roller
D4N-8@2H Bearing
45±1
39.5±1
(31)
20 to 66R
5.4
19.5±0.2
9±0.2
47
Conduit cap
42±0.2
56 max.
2.5
20.5
39±0.2
25 dia.
14.7
21.5
9±0.2
Resin lever
2.15±0.05R
mounting holes
21.5
11±0.2
12 dia. × 5
resin roller
10.2
23.3
5.4
19.5±0.2
2.15±0.05R
mounting holes
(31.5)
25 dia.
47
Cap
Conduit cap
14.2
30
42±0.2
56 max.
Two, 4+0.15
dia. holes
0
Depth: 5
(3)
14.2
30
Two, 4+0.15
dia. holes
0
Depth: 5
Note: Unless otherwise specified, a tolerance of r0.4 mm applies to all dimensions.
v
Snap-action (1NC/1NO) (2NC), Slow-action (2NC)
(3NC)
Slow-action (1NC/1NO) (2NC/1NO)
Model D4N-@A62
D4N-@C62
D4N-@E62
D4N-@F62
Operating characteristics
D4N-@A72
D4N-@C72
D4N-@E72
D4N-@F72
D4N-@A2G
D4N-@C2G
D4N-@E2G
D4N-@F2G
*1
D4N-@A2H
D4N-@C2H
D4N-@E2H
D4N-@F2H
*2
Operating force
OF max. 5.0 N
5.0 N
4.5 N
4.5 N
Release force
RF min. 0.8 N
0.8 N
0.4 N
0.4 N
Pretravel
PT max.
4 mm
*3
4 mm
18q to 27q
18q to 27q
(4.3 mm)
(44q)
(44q)
Model D4N-@162
D4N-@262
D4N-@B62
D4N-@D62
Operating characteristics
D4N-@172
D4N-@272
D4N-@B72
D4N-@D72
D4N-@12G
D4N-@22G
D4N-@B2G
D4N-@D2G
*1
D4N-@12H
D4N-@22H
D4N-@B2H
D4N-@D2H
*2
Operating force
OF max. 5.0 N
5.0 N
4.5 N
4.5 N
Release force
RF min. 0.8 N
0.8 N
0.4 N
0.4 N
Pretravel
PT max. 4 mm
4 mm
18q to 27q
18q to 27q
Overtravel
OT min. 5 mm
5 mm
40q
40q
1.5 mm
14q
14q
PT max.
4 mm
*5
4 mm
27.5q to 36.5q 27.5q to 36.5q
PT (2nd) (1.5 mm)
*6
(1.5 mm)
(18q)
OT min. 5 mm
5 mm
40q
Movement differential
1.5 mm
MD max. *3
Operating position OP
37 r0.8 mm 27 r0.8 mm ---
---
Total travel
(9 mm)
(9 mm)
(70q)
(70q)
Direct opening travel
5.8 mm
DOT min. *5
4.8 mm
50q
50q
Direct opening force
20 N
DOF min. *5
20 N
20 N
20 N
TT *4
Note: Variation occurs in the simultaneity of contact opening/closing operations
of 2NC, 2NC/1NO, and 3NC contacts. Check contact operation.
*1. The operating characteristics of these Switches were measured with the roller
lever set at 30 mm.
*2. The operating characteristics of these Switches were measured with the roller
lever set at 31 mm.
*3. Only for snap-action models.
*4. Reference value.
*5. For safe use, always make sure that the minimum values or greater are
provided.
http://www.ia.omron.com/
PT (2nd) (5.2 mm)
*4
Overtravel
Operating position OP
Total travel
37 r0.8 mm 27 r0.8 mm ---
OP *7
36 r0.8 mm
TT *8
26.1
r0.8 mm
---
(18q)
40q
-----
(9 mm)
(9 mm)
(70q)
(70q)
Direct opening travel
5.8 mm
DOT min. *9
4.8 mm
50q
50q
Direct opening force
20 N
DOF min. *9
20 N
20 N
20 N
*1. The operating characteristics of these Switches were measured with the roller
lever set at 30 mm.
*2. The operating characteristics of these Switches were measured with the roller
lever set at 31 mm.
*3. This PT value is possible when the NC contacts are open (OFF).
*4. This PT value is possible when the NO contacts are closed (ON).
*5. Only for MBB models.
*6. Reference value for MBB models only.
*7. Only for MBB models.
*8. Reference value.
*9. For safe use, always make sure that the minimum values or greater are provided.
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
15
D4N
2-conduit Models
Fork Lever Lock
(Right Operation)
D4N-5@RE
D4N-6@RE
D4N-7@RE
D4N-8@RE
Fork Lever Lock
(Left Operation)
D4N-5@LE
D4N-6@LE
D4N-7@LE
D4N-8@LE
47 max.
39.3±1
Two, 17.5 dia. ×
8 rubber rollers
(27.2)
90°
11±0.2
Two, 17.5 dia. ×
8 rubber rollers
20.5 × 20.5
(27.2)
27.5
90°
11±0.2
26R
21.5
20.5 × 20.5
18
5.4
2.5
2.15±0.05R
mounting holes
5.4
2.5
9±0.2
20±0.1
22±0.1
40±0.1
42±0.1
2.15±0.05R
mounting holes
39±0.2
25 dia.
47
Conduit cap
21.5
20.5
39±0.2
25 dia.
18
20.5
27.5
9±0.2
20±0.1
22±0.1
40±0.1
42±0.1
26R
47 max.
39.3±1
Two, 4+0.15
dia. holes
0
Depth: 5
47
42±0.2
56 max.
14.2
30
(3)
Cap
Cap
Conduit cap
42±0.2
56 max.
(3)
14.2
Two, 4+0.15
dia. holes
30
0
Depth: 5
Cat Whisker
D4N-5@80
D4N-7@80
Plastic Rod
D4N-5@87
D4N-7@87
D4N-6@80
D4N-8@80
D4N-6@87
D4N-8@87
1.2-dia.
stainless
steel wire *
PT
PT
38
Resin rod *
20.5 × 20.5
42
143.1
(50.1)
Sealing cap
5.4
21.5
11±0.2
2.5
20±0.1
22±0.1
40±0.1
42±0.1
20.5
39±0.2
25 dia.
47
2.15±0.05R
mounting
holes
Cap
Conduit cap
42±0.2
56 max.
(3)
14.2
30
Conduit cap
16.6 dia.
Sealing cap
5.4
11±0.2
2.5
12±0.2
9±0.2
2.15±0.05R
mounting holes
21.5
115
16.6 dia.
9±0.2
20±0.1
22±0.1
40±0.1
42±0.1
20.5
39±0.2
25 dia.
47
Cap
42±0.2
56 max.
(3)
(31.5)
Two, 4+0.15
dia. holes
0
Depth: 5
14.2
30
(31.5)
Two, 4+0.15
dia. holes
0
Depth: 5
Note: Unless otherwise specified, a tolerance of r0.4 mm applies to all dimensions.
* The usable range for stainless steel wires and resin rods is 35 mm max. from the end with a total travel of 70 mm max.
Slow-action (1NC/1NO) (2NC), Slow-action (2NC) (3NC)
Model
Operating characteristics
D4N-@@RE
D4N-@@LE
Force necessary to reverse the
direction of the lever: max.
6.4 N
6.4 N
Movement until the lever
reverses
55r10q
55r10q
Movement until switch operation
(NC)
(6.5q)
(6.5q)
(MBB: 10q)
Movement until switch operation
(NO)
(18.5q)
(18.5q)
(MBB: 5q)
Note: Variation occurs in the simultaneity of contact opening/closing
operations of 2NC, 2NC/1NO, and 3NC contacts. Check
contact operation.
Snap-action (1NC/1NO), Slow-action (2NC) (3NC)
Model
D4N-@@80
Operating characteristics
D4N-@@87
Operating force
OF max. 1.5 N
1.5 N
Pretravel
PT max.
15q
15q
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
16
D4N
Levers
Refer to the following for the angles and positions of the watchdogs (source: EN50047.)
Adjustable Roller Lever, Form Lock
(with Metal Lever, Rubber Roller)
(D4N-@@2H) (Reference Values)
Adjustable Roller Lever, Form Lock
(with Metal Lever, Resin Roller)
(D4N-@@2G) (Reference Values)
Roller Lever
(D4N-@@20)
30±7
40±2
10 min.
40±2
Dog
30°
29±7
Dog
10 min.
15±3
42±2
11±3
45 min.
10 min.
30°
Dog
40 min.
20 min. 30°
5±2
25 min.
110
55
5 min.
40+10
15 min.
90
30°
70+10
45
35+10
50 max.
75
55+10
55+10
65R 31R
65R 20R
Roller Plunger
(D4N-@@32)
Sealed Plunger
(D4N-@@31)
0
12.5 −2.5
10±1.5
0
12.5 −2.5
Dog
Dog
Operating position
Dog
15 min. 18±0.5 21 min.
Operating position
2.5
20 min. 30°
35
25+10
25 min. 28±1
10 min.
31 min.
One-way Roller Arm Lever
(Vertical) (Reference Values)
(D4N-@@72)
One-way Roller Arm Lever
(Horizontal)
(D4N-@@62)
0
12.5 −2.5
0
12.5 −2.5
10±2
Dog
31
10 min.
5 min.
20 min. 30°
30°
Dog
5 min.
40
31+10
41±2
10 min.
30 max.
22+10 20 min.
Fork Lever Lock
(Right Operation)
(D4N-@@RE)
Fork Lever Lock
(Left Operation)
(D4N-@@LE)
40
40
Mounting
surface
55° to 60°
Mounting
surface
60
5 to 9R
28
55° to 60°
60
36
36
Dog setting range
28
5 to 9R
Dog setting range
Note: Unless otherwise specified, a tolerance of r0.4 mm applies to all dimensions.
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
17
D4N
Safety Precautions
Refer to the “Precautions for All Switches” and “Precautions for All Safety Limit Switches”.
Switch Mounting
!CAUTION
Electric shock may occasionally occur.
Do not use metal connectors or metal conduits.
Precautions for Safe Use
x Do not use the Switch submerged in oil or water, or in locations
continuously subject to splashes of oil or water. Doing so may
result in oil or water entering the Switch interior. (The IP67 degree
of protection specification for the Switch refers to water penetration
while the Switch is submersed in water for a specified period of
time.)
x Always attach the cover after completing wiring and before using
the Switch. Also, do not turn ON the Switch with the cover open.
Doing so may result in electric shock.
x Do not switch circuits for two or more standard loads (250 VAC,
3 A) at the same time. Doing so may adversely affect insulation
performance.
x Mount the Switch using M4 screws and washers and tighten the
screws to the specified torque.
x For safety, use screws that cannot be easily removed, or use an
equivalent measure to ensure that the Switch is secure.
x As shown below, two studs with a maximum height of 4.8 mm and
a diameter of 4 0.05
0.15 mm can be provided, the studs inserted into the
holes on the bottom of the Switch, and the Switch secured at four
locations to increase the mounting strength.
Switch Mounting Holes
One-conduit Type
2.5±0.1
Two, M4
Two-conduit Type
2.5±0.1
Two, M4
5.35±0.1
20±0.1
22±0.1
39±0.1
47±0.1
20±0.1
22±0.1
40±0.1
42±0.1
42±0.1
Precautions for Correct Use
22±0.1
The Switch contacts can be used with either standard loads or
microloads. Once the contacts have been used to switch a load,
however, they cannot be used to switch smaller loads. The contact
surfaces will become rough once they have been used and contact
reliability for smaller loads may be reduced.
Mounting Method
−0.05
4 −0.15 dia.
Height: 4.8 max.
−0.05
4 −0.15 dia.
Height: 4.8 max.
x Make sure that the dog contacts the actuator at a right angle.
Applying a load to the switch actuator (roller) on a slant may result
in deformation or damage of the actuator or rotary shaft.
Dog
Dog
Appropriate Tightening Torque
Tighten each of the screws to the specified torque. Loose screws may
result in malfunction of the Switch within a short time.
1
Terminal screw
0.6 to 0.8 N·m
2
Cover mounting screw
0.5 to 0.7 N·m
3
Head mounting screw
0.5 to 0.6 N·m
4
Lever mounting screw
1.6 to 1.8 N·m
5
Body mounting screw
0.5 to 0.7 N·m
6
Connector, M12 adaptor
7
Cap screw
Incorrect
Correct
1.8 to 2.2 N·m (except 1/2-14NPT)
1.4 to 1.8 N·m (for 1/2-14NPT)
1.3 to 1.7 N·m
3
4
5
1
7
2
6
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
18
D4N
Wiring
Wiring
Contact Arrangement
x When connecting to the terminals via insulating tube and M3.5
crimp terminals, arrange the crimp terminals as shown below so
that they do not rise up onto the case or the cover.
Applicable lead wire size: AWG20 to AWG18 (0.5 to 0.75 mm2).
Use lead wires of an appropriate length, as shown below. Not
doing so may result in excess length causing the cover to rise and
not fit properly.
One-conduit Type (3 Poles)
x The contact arrangements are shown below.
Screw Terminal Type
D4N-@C@@ (2NC/1NO)
D4N-@F@@ (2NC/1NO (MBB))
D4N-@D@@ (3NC)
11
12
11
12
21
22
21
22
31
32
33
34
AB
A
B
11 12
C
C
21 22
D
E
33 34
F
D4N-@B@@ (2NC)
D4N-@2@@ (2NC (SNAP))
D
E
F
42 mm
33 mm
28 mm
D4N-@A@@ (1NC/1NO)
D4N-@E@@ (1NC/1NO (MBB))
11
12
11
12
31
32
33
34
Tolerance ±2 mm
D4N-@1@@ (1NC/1NO (SNAP))
Two-conduit Type (3 Poles)
Left hand
BD F
ECA
A
11 12
B
21 22
D
42 mm
E
33 34
42 mm
28 mm
F
14
31
32
Connector Type
ECA
BD F
C
13
Right hand
28 mm
D4N-9B@@ (2NC)
D4N-92@@ (2NC (SNAP))
D4N-9A@@ (1NC/1NO)
D4N-9E@@ (1NC/1NO (MBB))
Tolerance ±2 mm
(1) 11
12 (2)
(1) 11
12 (2)
x Do not push crimp terminals into gaps in the case interior. Doing so
may cause damage or deformation of the case.
x Use crimp terminals not more than 0.5 mm in thickness. Otherwise,
they will interfere with other components inside the case.
(3) 31
32 (4)
(3) 33
34 (4)
Tolerance ±2 mm
[Reference] The crimp terminals shown below are not more than
0.5 mm thick.
Manufacturer
J.S.T. Mfg. Co.
N0.5-3.7 (Straight Type)
0.5 mm
3.7 mm
2.9 mm
6.6 mm
19 mm D dia.
7.7 mm
8.0 mm
l
Correct
(3) 13
14 (4)
(1) 31
32 (2)
3
Pin No. (Terminal No.)
Socket Tightening (Connector Type)
F
B
dz dia.
Crimp terminal
4
x Applicable socket: XS2F (OMRON).
x Refer to the Connector Catalog for details on socket pin numbers
and lead wire colors.
Type
FN0.5-3.7 (F Type)
L
t:
dz dia.:
D dia.:
B:
L:
F:
I:
D4N-91@@ (1NC/1NO (SNAP))
1
2
Terminal screw
Incorrect
x Turn the socket connector screws by hand and tighten until no
space remains between the socket and the plug.
x Make sure that the socket connector is tightened securely.
Otherwise, the rated degree of protection (IP67) may not be
maintained and vibration may loosen the socket connector.
Conduit Opening
x Connect a recommended connector to the opening of the conduit
and tighten the connector to the specified torque. The case may be
damaged if an excessive tightening torque is applied.
x When using 1/2-14NPT, wind sealing tape around the joint
between the connector and conduit opening so that the enclosure
will conform to IP67.
x Use a cable with a suitable diameter for the connector.
x Attach and tighten a conduit cap to the unused conduit opening
when wiring. Tighten the conduit cap to the specified torque. The
conduit cap is provided with the Switch (2-conduit types).
Changing the Lever
The lever mounting screws can be used to set the lever position to
any position in a 360q angle at 7.5q increments. Grooves are incised
on the lever and rotary shaft that engage to prevent the lever from
slipping against the rotary shaft. The screws on adjustable roller lever
models can also loosened to change the length of the lever.
Remove the screws from the front of the lever before mounting the
lever in reverse (front/back), and set the level so that operation will be
completed before exceeding a range of 180q on the horizontal.
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
19
D4N
Recommended Connectors
Use connectors with screws not exceeding 9 mm, otherwise the
screws will protrude into the case interior, interfering with other
components in the case.
The connectors listed in the following table have connectors with
thread sections not exceeding 9 mm.
Use the recommended connectors to ensure conformance to IP67.
Size
Manufacturer
Model
Applicable cable
diameter
G1/2
LAPP
ST-PF1/2
5380-1002
6.0 to 12.0 mm
Pg13.5
LAPP
ST-13.5
5301-5030
6.0 to 12.0 mm
M20
LAPP
ST-M20 u 1.5
5311-1020
7.0 to 13.0 mm
1/2-14NPT
LAPP
ST-NPT1/2
5301-6030
6.0 to 12.0 mm
Use LAPP connectors together with seal packing (JPK-16, GP-13.5,
or GPM20), and tighten to the specified tightening torque. Seal
packing is sold separately.
x LAPP is a German manufacturer.
x Before using a 2-conduit 1/2-14NPT type, attach the provided
changing adaptor to the Switch and then connect the
recommended connector.
Others
x When attaching a cover, be sure that the seal rubber is in place and
that there is no foreign material present. If the cover is attached
with the seal rubber out of place or if foreign material is stuck to the
rubber, a proper seal will not be obtained.
x Do not use any screws to connect the cover other than the
specified ones. The seal characteristics may be reduced.
x Make sure that foreign particles do not enter the head when
removing the screws from the four corners to change the head
position in any of the four directions.
x Use the following recommended countermeasures to prevent
telegraphing when using adjustable or long levers.
1. Make the rear edge of the dog smooth with an angle of 15q to
30qor make it in the shape of a quadratic curve.
2. Design the circuit so that no error signal will be generated.
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20
D4N
Production Discontinuation
Following the release of the D4N, production of the D4D-N was discontinued.
Date of Production Discontinuation
Comparison with Discontinued Products
Production of the D4D-N Series was discontinued as of the end of
March 2006.
Item
Switch color
Very similar
Recommended Substitute Product
Dimensions
Very similar
Sales of the D4N series commenced in January 2004.
Wiring/connection
Significantly different
Mounting method
Completely compatible
Ratings/performance
Very similar
Operating characteristics
Very similar
Operating method
Completely compatible
Product Substitution
1. Dimensions
The D4D-N and D4N use the same mounting method, and
mounting hole. The multi-contact structure and the extra 4 mm in
length, however, are different.
2. Terminal Numbers
For the 2-contact slow-action model, the terminals 21, 22, 23, and
24 on the D4D-N are 31, 32, 33, and 34 on the D4N.
3. Recommended Terminals
If the recommended terminals are not used, the Switch may not be
compatible. Make sure that the Switch is compatible with the
terminals.
Model D4N
Dimensions (Unit: mm)
Discontinued Product (1-conduit Plunger-type D4D-N)
Recommended Substitute Product (1-conduit Plunger-type D4N)
25 dia. ±0.1
25±0.1
Two, 3 ±0.05 dia. holes
Two, 3 ±0.05 dia.
holes
12 dia.
12 dia.
6-dia. resin
plunger
6-dia. resin plunger
OP
OP
9±0.2
2.5
2.15±0.05R
mounting holes
55
47±0.2
Discontinued product (2-conduit Plunger-type D4D-N)
20±0.1
22±0.1
2.15±0.05R
mounting holes
Two, 4+0.15
dia. holes
0
depth: 5
31 max.
(31.5)
21.5
11±0.2
22±0.2
31 max.
Conduit cap
14.2
30
Two, 4+0.15
dia. holes
0
depth: 5
Recommended Substitute Product (2-conduit Plunger-type D4N)
25±0.1
Two, 3 ±0.05 dia. holes
depth: 6
Two, 3 ±0.05
dia. holes
12 dia.
12 dia.
6 dia.
6-dia. resin plunger
OP
OP
2.15±0.05R
mounting holes
25 dia.
2.15±0.05R
mounting holes
Cap
56 max.
http://www.ia.omron.com/
5.4
Two, 4+0.15
dia. holes
0
depth: 5
(31.5)
21.5
11±0.2
2.5
9±0.2
20±0.1
22±0.1
40±0.1
42±0.1
39±0.2
25 dia.
47
Conduit cap
20.5
Cap
42±0.2
56 max.
(3)
14.2
Two, 4+0.15
dia. holes
30
0
depth: 5
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
21
D4N
List of Recommended Substitute Products
: The actuator on the D4D-N is a non-safety type. The D4N is recommended for safety applications (form lock type). Be sure to mount it
correctly.
: M screws are recommended to comply with European standards. Therefore, the M20 type is recommended as a substitute when the Pg13.5
conduit-type is not available in a D4N model.
Safety Limit Switches
Discontinued
product
Recommended
substitute product
Discontinued
product
Recommended
substitute product
Discontinued
product
Recommended
substitute product
D4D-1120N
D4N-1120
D4D-1520N
D4N-1A20
D4D-1A20N
D4N-1B20
D4D-2120N
D4N-2120
D4D-2520N
D4N-2A20
D4D-2A20N
D4N-2B20
D4D-3120N
D4N-3120
D4D-3520N
D4N-3A20
D4D-3A20N
D4N-3B20
D4D-5120N
D4N-5120
D4D-5520N
D4N-5A20
D4D-5A20N
D4N-5B20
D4D-6120N
D4N-6120
D4D-6520N
D4N-6A20
D4D-6A20N
D4N-6B20
D4D-1122N
D4N-1122
D4D-1522N
D4N-1A22
D4D-1A22N
D4N-1B22
D4D-2122N
D4N-2122
D4D-2522N
D4N-2A22
D4D-2A22N
D4N-2B22
D4D-3122N
D4N-3122
D4D-3522N
D4N-3A22
D4D-3A22N
D4N-3B22
D4D-5122N
D4N-5122
D4D-5522N
D4N-5A22
D4D-5A22N
D4N-5B22
D4D-6122N
D4N-6122
D4D-6522N
D4N-6A22
D4D-6A22N
D4N-6B22
D4D-1125N
D4N-1125
D4D-1525N
D4N-1A25
D4D-1A25N
D4N-1B25
D4D-2125N
D4N-2125
D4D-2525N
D4N-2A25
D4D-2A25N
D4N-2B25
D4D-3125N
D4N-3125
D4D-3525N
D4N-3A25
D4D-3A25N
D4N-3B25
D4D-1131N
D4N-1131
D4D-1531N
D4N-1A31
D4D-1A31N
D4N-1B31
D4D-2131N
D4N-2131
D4D-2531N
D4N-2A31
D4D-2A31N
D4N-2B31
D4D-3131N
D4N-3131
D4D-3531N
D4N-3A31
D4D-3A31N
D4N-3B31
D4D-5131N
D4N-5131
D4D-5531N
D4N-5A31
D4D-5A31N
D4N-5B31
D4D-6131N
D4N-6131
D4D-6531N
D4N-6A31
D4D-6A31N
D4N-6B31
D4D-1132N
D4N-1132
D4D-1532N
D4N-1A32
D4D-1A32N
D4N-1B32
D4D-2132N
D4N-2132
D4D-2532N
D4N-2A32
D4D-2A32N
D4N-2B32
D4D-3132N
D4N-3132
D4D-3532N
D4N-3A32
D4D-3A32N
D4N-3B32
D4D-5132N
D4N-5132
D4D-5532N
D4N-5A32
D4D-5A32N
D4N-5B32
D4D-6132N
D4N-6132
D4D-6532N
D4N-6A32
D4D-6A32N
D4N-6B32
D4D-1162N
D4N-1162
D4D-1562N
D4N-1A62
D4D-1A62N
D4N-1B62
D4D-2162N
D4N-2162
D4D-2562N
D4N-2A62
D4D-2A62N
D4N-2B62
D4D-3162N
D4N-3162
D4D-3562N
D4N-3A62
D4D-3A62N
D4N-3B62
D4D-5162N
D4N-5162
D4D-5562N
D4N-5A62
D4D-5A62N
D4N-5B62
D4D-6162N
D4N-6162
D4D-6562N
D4N-6A62
D4D-6A62N
D4N-6B62
D4D-1172N
D4N-1172
D4D-1572N
D4N-1A72
D4D-1A72N
D4N-1B72
D4D-2172N
D4N-2172
D4D-2572N
D4N-2A72
D4D-2A72N
D4N-2B72
D4D-3172N
D4N-3172
D4D-3572N
D4N-3A72
D4D-3A72N
D4N-3B72
D4D-5172N
D4N-5172
D4D-5572N
D4N-5A72
D4D-5A72N
D4N-5B72
D4D-6172N
D4N-6172
D4D-6572N
D4N-6A72
D4D-6A72N
D4N-6B72
D4D-112HN
D4N-112H
D4D-152HN
D4N-1A2H
D4D-1A2HN
D4N-1B2H
D4D-212HN
D4N-212H
D4D-252HN
D4N-2A2H
D4D-2A2HN
D4N-2B2H
D4D-312HN
D4N-312H
D4D-352HN
D4N-3A2H
D4D-3A2HN
D4N-3B2H
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
22
D4N
General-purpose Limit Switches
Discontinued
product
Recommended
substitute product
Discontinued
product
Recommended
substitute product
Discontinued
product
Recommended
substitute product
D4D-1121N
D4N-112G
D4D-15REN
D4N-1ARE
D4D-1AREN
D4N-1BRE
D4D-2121N
D4N-212G
D4D-25REN
D4N-2ARE
D4D-2AREN
D4N-2BRE
D4D-3121N
D4N-312G
D4D-35REN
D4N-3ARE
D4D-3AREN
D4N-3BRE
D4D-5121N
D4N-512G
D4D-55REN
D4N-5ARE
D4D-5AREN
D4N-5BRE
D4D-6121N
D4N-612G
D4D-65REN
D4N-6ARE
D4D-6AREN
D4N-6BRE
D4D-1127N
D4N-112H
D4D-15LEN
D4N-1ALE
D4D-1ALEN
D4N-1BLE
D4D-2127N
D4N-212H
D4D-25LEN
D4N-2ALE
D4D-2ALEN
D4N-2BLE
D4D-3127N
D4N-312H
D4D-35LEN
D4N-3ALE
D4D-3ALEN
D4N-3BLE
D4D-5127N
D4N-512H
D4D-55LEN
D4N-5ALE
D4D-5ALEN
D4N-5BLE
D4D-6127N
D4N-612H
D4D-65LEN
D4N-6ALE
D4D-6ALEN
D4N-6BLE
D4D-1180N
D4N-4180
D4D-1521N
D4N-1A2G
D4D-1A21N
D4N-1B2G
D4D-2180N
D4N-2180
D4D-2521N
D4N-2A2G
D4D-2A21N
D4N-2B2G
D4D-3180N
D4N-3180
D4D-3521N
D4N-3A2G
D4D-3A21N
D4N-3B2G
D4D-5180N
D4N-8180
D4D-5521N
D4N-5A2G
D4D-5A21N
D4N-5B2G
D4D-6180N
D4N-6180
D4D-6521N
D4N-6A2G
D4D-6A21N
D4N-6B2G
D4D-1187N
D4N-4187
D4D-1527N
D4N-1A2H
D4D-1A27N
D4N-1B2H
D4D-2187N
D4N-2187
D4D-2527N
D4N-2A2H
D4D-2A27N
D4N-2B2H
D4D-3187N
D4N-3187
D4D-3527N
D4N-3A2H
D4D-3A27N
D4N-3B2H
D4D-5187N
D4N-8187
D4D-5527N
D4N-5A2H
D4D-5A27N
D4N-5B2H
D4D-6187N
D4N-6187
D4D-6527N
D4N-6A2H
D4D-6A27N
D4N-6B2H
D4D-1A80N
D4N-4B80
D4D-2A80N
D4N-2B80
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D4D-3A80N
D4N-3B80
D4D-5A80N
D4N-8B80
D4D-6A80N
D4N-6B80
D4D-1A87N
D4N-4B87
D4D-2A87N
D4N-2B87
D4D-3A87N
D4N-3B87
D4D-5A87N
D4N-8B87
D4D-6A87N
D4N-6B87
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
23
Precautions for All Safety Limit Switches
Note: Refer to the “Safety Precautions” section for each Switch for specific precautions applicable to each Switch.
Precautions for Safe Use
x Do not use the Switch in atmospheres containing explosive or
flammable gases.
x Although the switch box is protected from dust or water
penetration, the head is not protected from minute foreign matter
or water penetration. Ensure that minute foreign matter and water
do not penetrate the head. Failure to do so may result in
accelerated wear, Switch damage, or malfunctioning.
x The durability of the Switch varies considerably depending on the
switching conditions. Always confirm the usage conditions by using
the Switch in an actual application, and use the Switch only for the
number of switching operations that its performance allows.
x Do not use the Switch as a stopper.
x Do not use the Switch in a startup circuit. Use it instead for a safety
confirmation signal.
x Check the Switches before use and inspect regularly, replacing
them when necessary. If a Switch is kept pressed for an extended
period of time, the components may deteriorate quickly, and the
Switch may not release.
x To protect the Switch from damage due to short-circuits, be sure to
connect a quick-response fuse with a breaking current 1.5 to 2
times larger than the rated current in series with the Switch.
When complying with EN certified ratings, use a 10 A IEC 60269compliant gI or gG fuse.
x Do not drop the Switch. Doing so may prevent it from functioning
to its full capacity.
x Do not disassemble or modify the Switch. Doing so may prevent it
from operating correctly.
Precautions for Correct Use
Mechanical Characteristics
Operating force
Stroke
Contact force
FP
Changes to opposite side
Changes to opposite side
OTP
x If the Limit Switch is used so that the actuator is constantly
pressed, it will fail quickly and reset faults may occur. Inspect the
Limit Switch periodically and replace it as required.
Operation
x Carefully determine the proper cam or dog so that the actuator will
not abruptly snap back, thus causing shock. In order to operate the
Limit Switch at a comparatively high speed, use a cam or dog with
a long enough stroke that keeps the Limit Switch turned ON for a
sufficient time so that the relay or valve will be sufficiently
energized.
x The operating method, the shape of the dog or cam, the operating
frequency, and the travel after operation have a large influence on
the durability and operating accuracy of the Limit Switch. The cam
must be smooth in shape.
Incorrect
Operating Force, Stroke, and Contact Characteristics
x The following graph indicates the relationship between operating
force and stroke or stroke and contact force. In order to operate the
Limit Switch with high reliability, it is necessary to use the Limit
Switch within an appropriate contact force range. If the Limit Switch
is used in the normally closed condition, the dog must be installed
so that the actuator will return to the FP when the actuator is
actuated by the object. If the Limit Switch is used in the normally
open condition, the actuator must be pressed to 80% to 100% of
the OT (i.e., 60% to 80% of the TT) and any slight fluctuation must
be absorbed by the actuator.
x If the full stroke is set close to the OP or RP, contact instability may
result. If the full stroke is set to the TTP, the actuator or switch may
become damaged due to the inertia of the dog. In that case, adjust
the stroke with the mounting panel or the dog. Refer to page C-2,
Dog Design, page C-3, Stroke Settings vs. Dog Movement
Distance, and page C-3, Dog Surface for details.
x The following graph shows an example of changes in contact force
according to the stroke. The contact force near the OP or RP is
unstable, and the Limit Switch cannot maintain high reliability.
Furthermore, the Limit Switch cannot withstand strong vibration or
shock.
Correct
Snapped
back
Abruptly
actuated
Incorrect
Correct
Snapped
back
Abruptly
actuated
x Appropriate force must be imposed on the actuator by the cam or
another object in both rotary operation and linear operation.
If the object touches the lever as shown below, the operating
position will not be stable.
Incorrect
Correct
Dog
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Stroke
Dog
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
C-1
Precautions for All Safety Limit Switches
x Unbalanced force must not be imposed on the actuator. Otherwise,
wear and tear on the actuator may result.
Incorrect
Correct
Dog
Dog
Roller
Roller
x Make sure that the actuator does not exceed the OT (overtravel)
range, otherwise the Limit Switch may malfunction. When
mounting the Limit Switch, be sure to adjust the Limit Switch
carefully while considering the whole movement of the actuator.
Dog
PT (Pretravel)
Install a stopper.
80% of 100% of
rated OT rated OT
FP (Free position)
OP (Operating position)
OT (Overtravel)
TTP (Total travel position)
Optimum setting
range
Distance to the optimum
setting range.
Operating Environment
x These Switches are for indoor applications.
The Switches may fail if they are used outdoors.
x Do not use the Switch in locations where toxic gases, such as H2S,
SO2, NH3, HNO3, and Cl2, may be present, or in locations that are
subject to high temperatures or humidity. Doing so may damage
the Switch due to contact failure or corrosion.
x Do not use the Switches in the following locations.
· Locations subject to severe temperature changes
· Locations subject to high temperatures or condensation
· Locations subject to severe vibration
· Locations where the interior of the Protective Door may come into
direct contact with cutting chips, metal filings, oil, or chemicals
· Locations where the Switch may come into contact with thinner or
detergents
· Locations where explosive or flammable gases are present
Switch Contacts
Switch contacts can be used with both standard loads and
microloads, but once a contact has been used to switch a standard
load, it cannot be used for a load of a smaller capacity.
Doing so may result in roughening of the contact surface and contact
reliability may be lost.
Storing Switches
Do not store the Switch in locations where toxic gases, such as H2S,
SO2, NH3, HNO3, and Cl2, may be present, or in locations that are
subject to, excessive dirt, excessive dust, high temperature, or high
humidity.
Other Precautions
Reference line
x The Limit Switch may soon malfunction if the OT is excessive.
Therefore, adjustments and careful consideration of the position of
the Limit Switch and the expected OT of the actuator are
necessary when mounting the Limit Switch.
Correct
Stopper
x Be sure to use the Limit Switch according to the characteristics of
the actuator.
If a roller arm lever actuator is used, do not attempt to actuate the
Limit Switch in the direction shown below.
Incorrect
x When attaching a cover, be sure that the seal rubber is in place and
that there is no foreign material present. If the cover is attached
with the seal rubber out of place or if foreign material is stuck to the
rubber, a proper seal will not be obtained.
x Perform maintenance inspections periodically.
x Use the Switch with a load current that does not exceed the rated
current.
x Do not use any screws to connect the cover other than the
specified ones. The seal characteristics may be reduced.
Dog Design
Operating Speed, Dog Angle, and Relationship with
Actuator
Before designing a dog, carefully consider the operating speed and
angle of the dog and their relationship with the shape of the actuator.
The optimum operating speed (V) of a standard dog at an angle of 30q
to 45q is 0.5 m/s maximum.
Roller Lever Models
1. Non-overtravel Dog
Dog speed: 0.5 m/s max. (Standard Speed)
x Do not modify the actuator to change the OP.
x In the case of a long actuator of an adjustable roller lever type, the
following countermeasures against lever shaking are
recommended.
1. Make the rear edge of the object smooth with an angle of 15q to 30q
or make it in the shape of a quadratic curve.
2. Design the circuit so that no error signal will be generated.
3. Use or set a switch that is actuated in one direction only.
(Also, set the switch for operation in one direction only.)
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φ
Lever set vertically
I
V max. (m/s)
30q
0.4
45q
0.25
60q
0.1
60q to 90q
0.05 (low speed)
y
0.8 (TT)
80% of totaltravel
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
C-2
Precautions for All Safety Limit Switches
Dog speed: 0.5 m/s d V d 2 m/s (High Speed)
φ
Stroke Settings vs. Dog Movement Distance
x The following provides information on stroke settings based on the
movement distance of the dog instead of the actuator angle.
The following is the optimum stroke of the Limit Switch.
Optimum stroke: PT + {Rated OT x (0.7 to 1.0)}
The angle converted from the above: T1 + T2
Change lever set angle (θ) according
to dog angle (φ)
T
I
V max. (m/s)
45q
45q
0.5
50q
40q
0.6
60q to 55q
30q to 35q
1.3
75q to 65q
15q to 25q
2
70% to 100% of rated OT
y
0.5 to 0.8 (TT)
0.5 to 0.7 (TT)
Note: The above y values indicate the ratio ranges based on TT (total
travel). Therefore, the optimum pressing distance of the dog is
between 50% and 80% (or 50% and 70%).
PT: Pretravel
OT: Overtravel
2. Overtravel Dog
x The movement distance of the dog based on the optimum stroke is
expressed by the following formula.
Dog speed: 0.5 m/s max.
φ
φ
Movement distance of dog
φ
Lever set vertically
I
V max. (m/s)
φ
y
Dog
30q
0.4
45q
0.25
60q
0.1
60q to 90q
0.05 (low speed)
0.8 (TT)
80% of total travel
Dog speed: 0.5 m/s min.
If the speed of the overtravel dog is comparatively high, make the rear
edge of the object smooth at an angle of 15q to 30q or make it in the
shape of a quadratic curve. Then lever shaking will be reduced.
15 to 30°
φ
φ: Dog angle
θ: Optimum stroke angle
R: Actuator length
X: Dog movement distance
x The distance between the reference line and the bottom of the dog
based on the optimum stroke is expressed by the following formula.
60° max.
Dog
T
I
V max. (m/s)
45q
45q
0.5
50q
40q
0.6
60q to 55q
30q to 35q
1.3
75q to 65q
15q to 25q
2
y
Y
0.5 to 0.8 (TT)
0.5 to 0.7 (TT)
Reference line
Note: The above y values indicate the ratio ranges based on TT (total
travel). Therefore, the optimum pressing distance of the dog is
between 50% and 80% (or 50% and 70%).
Plunger Models
If the dog overrides the actuator, the front and rear of the dog may be
the same in shape, provided that the dog is not designed to be
separated from the actuator abruptly.
Roller Plunger
Mounting hole
a: Distance between reference line and actuator fulcrum
b: R cosθ
r: Roller radius
Y: Distance between reference line and bottom of dog
Dog Surface
x The surface of dog touching the actuator should be 6.3 S in quality
and hardened at approximately HV450.
For smooth operation of the actuator, apply molybdenum disulfide
grease to the actuator and the dog touching the actuator.
Others
φ
x When using the Limit Switch with a long lever or long rod lever,
make sure that the lever is in the downward direction.
I
V max. (m/s)
y
30q
0.25
0.6 to 0.8 (TT)
20q
0.5
0.5 to 0.7 (TT)
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
C-3
Precautions for All Safety Limit Switches
x With a roller actuator, the dog must touch the actuator at a right
angle. The actuator or roller may deform or break if the dog
touches the actuator (roller) at an oblique angle.
Dog
Correct
Dog
g
Do
g
Do
Incorrect
x Do not remove the Head. The Switch may fail.
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
C-4
Precautions for All Switches
Refer to the Safety Precautions section for each Switch for specific precautions applicable to each Switch.
Precautions for Safe Use
x If the Switch is to be used as a switch in an emergency stop circuit
or in a safety circuit for preventing accidents resulting in injuries or
deaths, use a Switch with a direct opening mechanism, use the NC
contacts with a forced release mechanism, and set the Switch so
that it will operate in direct opening mode.
For safety, install the Switch using one-way rotational screws or
other similar means to prevent it from easily being removed.
Protect the Switch with an appropriate cover and post a warning
sign near the Switch to ensure safety.
x Do not perform wiring while power is being supplied. Wiring while
the power is being supplied may result in electric shock.
x Keep the electrical load below the rated value.
x Be sure to evaluate the Switch under actual working conditions
after installation.
x Do not touch the charged Switch terminals while the Switch has
carry current, otherwise an electric shock may be received.
x If the Switch has a ground terminal, be sure to connect the ground
terminal to a ground wire.
x The durability of the Switch greatly varies with switching
conditions. Before using the Switch, be sure to test the Switch
under actual conditions. Make sure that the number of switching
operations is within the permissible range.
If a deteriorated Switch is used continuously, insulation failures,
contact welding, contact failures, Switch damage, or Switch
burnout may result.
x Maintain an appropriate insulation distance between wires
connected to the Switch.
x Some types of load have a great difference between normal
current and inrush current. Make sure that the inrush current is
within the permissible value. The greater the inrush current in the
closed circuit is, the greater the contact abrasion or shift will be.
Consequently, contact welding, contact separation failures, or
insulation failures may result. Furthermore, the Switch may
become broken or damaged.
Mounting
x Do not modify the Actuator, otherwise the operating characteristics
and performance of the Actuator will change.
x Do not enlarge the mounting holes of the Switch or modify the
Switch, otherwise insulation failures, housing damage, or human
accidents may result.
x Do not apply oil, grease, or other lubricants to the moving parts of
the Actuator, otherwise the Actuator may not operate correctly.
Furthermore, ingress of oil, grease, or other lubricants inside the
Switch may reduce sliding characteristic or cause failures in the
Switch.
x Mount the Switch and secure it with the specified screws tightened
to the specified torque along with flat and spring washers.
x Be sure to wire the Switch so that the conduit opening is free of
metal powder or any other impurities.
x If glue or bonding agent is applied, make sure that it does not
adhere to the movable parts or enter the Switch, otherwise the
Switch may not work correctly or cause contact failure. Some types
of glue or bonding agent may generate a gas that may have a
negative influence on the Switch. Pay the utmost attention when
selecting the glue or locking agent.
x Some models allow changes in the head direction. When changing
the head of such a model, make sure that the head is free of any
foreign substance. Tighten each screw of the head to the rated
torque.
x Be sure to take measures so that no foreign material, oil, or water
will enter the Switch through the conduit opening. Be sure to attach
a connector suitable for the cable thickness and tighten the
connector securely to the rated torque.
x Do not impose shock or vibration on the Actuator while it is fully
pressed. Otherwise, the Actuator will partially abrade and an
actuation failure may result.
I
(A)
i (Inrush current)
io (Constant
current)
t
x The user must not attempt to repair or maintain the Switch and
must contact the machine manufacturer for any repairs or
maintenance.
x Do not attempt to disassemble or modify the Switch. Doing so may
cause the Switch to malfunction.
x Do not drop the Switch. Doing so may result in the Switch not
performing to its full capability.
Wiring
Pay the utmost attention so that each terminal is wired correctly.
If the terminal is wired incorrectly, the Switch will not function.
Furthermore, not only will the Switch have a negative influence on the
external circuit, the Switch itself may become damaged or burnt.
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
C-5
Precautions for All Switches
Precautions for Correct Use
Switch Operation
x The Switch in actual operation may cause accidents that cannot be
foreseen from the design stage. Therefore, the Switch must be
practically tested before actual use.
x When testing the Switch, be sure to apply the actual load
conditions together with the actual operating environment.
x All the performance ratings in this catalog are provided under the
following conditions unless otherwise specified.
Inductive load:A minimum power factor of 0.4 (AC) or a
maximum time constant of 7 ms (DC)
x If the load is inductive, counter-electromotive voltage will be
generated. The higher the voltage is, the higher the generated
energy will be, which will increase the abrasion of the contacts and
contact relocation load conditions. Be sure to use the Switch within
the rated conditions.
x If the load is a minute voltage or current load, use a Switch
designed for minute loads. The reliability of silver-plated contacts,
which are used by standard Switches, will be insufficient if the load
is a minute voltage or current load.
Connections
Lamp load:
An inrush current 10 times higher than the
normal current
x With a Za contact form, do not contact a single Switch to two power
supplies that are different in polarity or type.
Motor load:
An inrush current 6 times higher than the
normal current
Power Connection Examples
Incorrect Power Connection
Example
(Connection of Different Polarities)
1. Ambient temperature: 5qC to 35qC
2. Ambient humidity:
40% to 70%.
Note: An inductive load causes a problem especially in DC circuitry.
Therefore, it is essential to know the time constants (L/R) of the
load.
(Connection of Different Power
Supplies)
There is a risk of AC and DC mixing.
Incorrect
Incorrect
I
(A)
L
NC
AC
NC
NO
DC
NO
Solenoids
(Approximately 10 to 20 times higher)
Incandescent
lamps (Approximately 10 to 15 times
higher)
Motors
(Approximately
5 to 10 times
higher)
Relays
(Approximately 4 to 5
times higher)
L
Correct
NC
NO
Connect the load to the same polarities.
t
Mechanical Conditions for Switch Selection
x An Actuator suitable for the operating method must be selected.
Ask your OMRON representative for details.
x Check the operating speed and switching frequency.
1. If the operating speed is extremely low, switching of the
movable contact will become unstable, thus resulting in
incorrect contact or contact welding.
2. If the operating speed is extremely high, the Switch may break
due to shock. If the switching frequency is high, the switching of
the contacts cannot keep up with the switching frequency. Make
sure that the switching frequency is within the rated switching
frequency.
x Do not impose excessive force on the Actuator, otherwise the
Actuator may become damaged or not operate correctly.
x Make sure that the stroke is set within the suitable range specified
for the model, or otherwise the Switch may break.
Electrical Characteristics for Switch Selection
Electrical Conditions
x The switching load capacity of the Switch greatly varies between
AC and DC. Always be sure to apply the rated load. The control
capacity will drastically drop if it is a DC load. This is because a DC
load has no current zero-cross point, unlike an AC load. Therefore,
if an arc is generated, it may continue comparatively for a long
time. Furthermore, the current direction is always the same, which
results in contact relocation, whereby the contacts easily stick to
each other and do not separate when the surfaces of the contacts
are uneven.
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x Do not use a circuit that will short-circuit if a fault occurs, otherwise
the charged part may melt and break off.
Incorrect
L
NC
NC
NO
NO
L
x Application of Switch to a Low-voltage, Low-current Electronic
Circuit.
1. If bouncing or chattering of the contacts results and causes
problems, take the following countermeasures.
(a) Insert an integral circuit.
(b) Suppress the generation of pulses from the contact bouncing
or chattering of the contacts so that it is less than the noise
margin of the load.
2. Conventional silver-plated contacts are not suitable for this
application, in which particularly high reliability is required. Use
gold-plated contacts, which are ideal for handling minute
voltage or current loads.
3. The contacts of the Switch used for an emergency stop must be
normally closed with a positive opening mechanism.
x To protect the Switch from damage due to short-circuits, be sure to
connect in series a quick-response fuse with a breaking current 1.5
to 2 times larger than the rated current to the Switch. When
complying with EN certified ratings, use a 10-A IEC 60269compliant gI or gG fuse.
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
C-6
Precautions for All Switches
Contact Protection Circuits
Using a contact protection circuit to increase the contact durability,
prevent noise, and suppress the generation of carbide or nitric acid.
Be sure to apply the contact protection circuit correctly, otherwise
adverse results may occur.
The following tables shows typical examples of contact protection
circuits. If the Switch is used in an excessively humid location for
switching a load that easily generates arcs, such as an inductive load,
the arcs may generate NOx, which will change into HNO3 when it
reacts with moisture. Consequently, the internal metal parts may
corrode and the Switch may fail. Be sure to select the best contact
protection circuit from the following table.
Typical Examples of Contact Protection Circuits
Applicable
current
Circuit example
AC
C
R
Power
supply
Inductive
load
*
Yes
(Yes)
CR
C
Power
supply
R
Inductive
load
Yes
Features and remarks
Element selection
DC
Yes
Use the following as guides for C and R
values:
C: 1 to 0.5 PF per 1 A of contact current (A)
R: 0.5 to 1 : per 1 V of contact voltage (V)
These values depend on various factors,
including the load characteristics. Confirm
optimum values experimentally.
Capacitor C suppresses the discharge when
The operating time of the contacts will be
the contacts are opened, while the resistor
increased if the load is a Relay or solenoid.
Connecting the CR circuit in parallel to the load R limits the current applied when the
is effective when the power supply voltage is 24 contacts are closed the next time.
or 48 V and in parallel to the contacts when the Generally, use a capacitor with a low
dielectric strength of 200 to 300 V. For
power supply voltage is 100 to 200 V.
applications in an AC circuit, use an AC
capacitor (with no polarity).
* Load impedance must be much smaller than
the CR circuit impedance when using the
Switch for an AC voltage.
Diode
Power
supply
Inductive
load
No
Yes
The energy stored in the coil reaches the coil as
current via the diode connected in parallel, and
is dissipated as Joule heat by the resistance of
the inductive load. This type of circuit increases
the release time more than the CR type.
Diode +
Zener diode
Power
supply
Inductive
load
No
Yes
This circuit effectively shortens the reset time in
Use a Zener diode with a low breakdown
applications where the release time of a diode
voltage.
circuit is too slow.
Yes
This circuit prevents a high voltage from being
applied across the contacts by using the
constant-voltage characteristic of a varistor.
This circuit also somewhat increases the reset
time. Connecting the varistor across the load is
effective when the supply voltage is 24 to 48 V,
and across the contacts when the supply
voltage is 100 to 200 V.
Varistor
Inductive
load
Yes
Power
supply
Use a diode having a reverse breakdown
voltage of more than 10 times the circuit
voltage, and a forward current rating greater
than the load current.
---
Do not use the following types of contact protection circuit.
C
Power
supply
Load
This circuit arrangement is very
effective for diminishing arcing at
the contacts when breaking the
circuit. However, since electrical
energy is stored in C (capacitor)
when the contacts are open, the
current from C flows into the
contacts when they close. This
may lead to contact welding.
Power C
supply
Load
This circuit arrangement is very
useful for diminishing arcing at the
contacts when breaking the circuit.
However, since the charging current
to C flows into the contacts when
they are closed, contact welding
may occur.
Although it is thought that switching a DC
inductive load is more difficult than a resistive
load, an appropriate contact protection circuit
can achieve almost the same characteristics.
Contact failure may occur if a Switch for a general load is used to
switch a microload circuit. Use Switches in the ranges shown in the
diagram right. However, even when using microload models within
the operating range shown here, if inrush current occurs when the
contact is opened or closed, it may increase contact wear and so
decrease durability. Therefore, insert a contact protection circuit
where necessary. The minimum applicable load is the N-level
reference value. This value indicates the malfunction reference level
for the reliability level of 60% (O60) (JIS C5003). The equation, O60 =
0.5×106/operations indicates that the estimated malfunction rate is
less than 1/2,000,000 operations with a reliability level of 60%.
Voltage (VDC)
Using Switches for Microloads
5 mW
800 mW
0.16 mA
30
26 mA
24
Operating range for
micro-load models
Operating
range for
standard
models
12
Unusable
range
5
1 mA
100 mA 160 mA
0
0.1
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1
10
100
1,000 Current (mA)
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
C-7
Precautions for All Switches
Operating Environment
x The Switches are designed for use indoors.
Using a Switch outdoors may cause it to malfunction.
x Do not use the Switch submerged in oil or water, or in locations
continuously subject to splashes of water. Doing so may result in
oil or water entering the Switch interior.
x Confirm suitability (applicability) in advance before using the
Switch where it would be subject to oil, water, chemicals, or
detergents. Contact with any of these may result in contact failure,
insulation failure, earth leakage faults, or burning.
x Do not use the Switch in the following locations:
• Locations subject to corrosive gases
• Locations subject to severe temperature changes
• Locations subject to high humidity, resulting in condensation
• Locations subject to severe vibration
• Locations subject to cutting chips, dust, or dirt
• Locations subject to high humidity or high temperature
x Use protective covers to protect Switches that are not specified as
waterproof or airtight whenever they are used in locations subject
to splattering or spraying oil or water, or to accumulation of dust or
dirt.
Correct
Incorrect
x Make sure to install the Switch in locations free of vibration or
shock. If vibration or shock is continuously imposed on the Switch,
contact failure, malfunction, or decrease in service life may be
caused by abrasive powder generated from the internal parts. If
excessive vibration or shock is imposed on the Switch, the
contacts may malfunction or become damaged.
x Do not use the Switch with silver-plated contacts for long periods if
the switching frequency of the Switch is comparatively low or the
load is minute. Otherwise, sulfuric film will be generated on the
contacts and contact failures may result. Use the Switch with
gold-plated contacts or use a Switch designed for minute loads
instead.
x Do not use the Switch in locations with corrosive gas, such as
sulfuric gas (H2S or SO2), ammonium gas (NH3), nitric gas (HNO3),
or chlorine gas (Cl2), or high temperature and humidity. Otherwise,
contact failure or corrosion damage may result.
x If the Switch is used in locations with silicone gas, arc energy may
create silicon dioxide (SiO2) on the contacts and a contact failure
may result. If there is silicone oil, silicone sealant, or wire covered
with silicone close to the Switch, attach a contact protection circuit
to suppress the arcing of the Switch or eliminate the source of
silicone gas generation.
Regular Inspection and Replacement
Terminal box
Terminal box
x Be sure to install the Switch so that the Switch is free from dust or
metal powder. The Actuator and the Switch casing must be
protected from the accumulation of dust or metal powder.
Incorrect
Correct
x Do not use the Switch in locations where the Switch is exposed to
steam or hot water at a temperature greater than 60qC.
x Do not use the Switch under temperatures or other environmental
conditions not within the specified ranges.
The rated permissible ambient temperature range varies with the
model. Refer to the Specifications in this catalog.
If the Switch is exposed to radical temperature changes, the
thermal shock may deform the Switch and the Switch may
malfunction.
Incorrect
Correct
x If the Switch is normally closed with low switching frequency (e.g.,
once or less per day), a reset failure may result due to the
deterioration of the parts of the Switch. Regularly inspect the
Switch and make sure that the Switch is in good working order.
x In addition to the mechanical durability or electrical durability of the
Switch described previously, the durability of the Switch may
decrease due to the deterioration of each part, especially rubber,
resin, and metal. Regularly inspect the Switch and replace any part
that has deteriorated to prevent accidents from occurring.
x If the Switch is not turned ON and OFF for a long period of time,
contact reliability may be reduced due to contact oxidation.
Continuity failure may result in accidents (i.e., the switch may not
turn ON due to increased contact resistance.)
x Be sure to mount the Switch securely in a clean location to ensure
ease of inspection and replacement. The Switch with operation
indicator is available, which is ideal if the location is dark or does
not allow easy inspection or replacement.
Correct
Incorrect
Difficult to inspect or install
Easy to inspect
The cover must be located
in the direction ensuring
ease of maintenance or
inspection.
Separate the
Switch
from heat
sources
Storage of Switch
x Be sure to protect the Switch with a cover if the Switch is in a
location where the Switch may be actuated by mistake or where
the Switch is likely cause an accident.
Incorrect
x When storing the Switch, make sure that the location is free of
corrosive gas, such as H2S, SO2, NH3, HNO3, or Cl2, or dust and
does not have a high temperature or humidity.
x Be sure to inspect the Switch before use if it has been stored for
three months or more.
Correct
Prevent false operation
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
C-8
Precautions for All Switches
Typical Problems, Probable Causes, and Remedies
Problem
Probable cause
The shape of the dog or cam is incorrect.
The contacting surface of the dog or cam is rough.
The Actuator in use is not suitable.
1. The Actuator does not
operate.
2. The Actuator does not return.
3. The Actuator has been
deformed.
4. The Actuator is worn.
5. The Actuator has been
damaged.
Mechanical
failure
The operating direction of the Actuator is not
correct.
The operation speed is excessively high.
x Attach a decelerating device or change
the mounting position of the Switch.
Excessive stroke.
x Change the stroke.
The rubber or grease hardened due to low
temperature.
x Use a cold-resistive Switch.
The accumulation of sludge, dust, or cuttings.
x Use a drip-proof model or one with high
degree of protection.
x Use a protection cover and change the
solvent and materials.
Dissolution, expansion, or swelling damage to the
rubber parts of the driving mechanism.
There is a large deviation in
operating position
(with malfunctioning involved).
Damage to and wear and tear of the internal
movable spring.
Wear and tear of the internal mechanism.
The loosening of the mounting screws causing
the position to be unstable.
Overheating due to a long soldering time.
The terminal part wobbles (The
mold part has been deformed).
The Switch has been connected to and pulled by
thick lead wires with excessive force.
High temperature or thermal shock resulted.
Vibration or shock is beyond the rated value.
Contact chattering.
Remedy
x Change the design of the dog or cam
and smooth the contacting surface of
the cam.
x Scrutinize the suitability of the
Actuator.
(Make sure that the Actuator does not
bounce.)
Shock has been generated from a device other
than the Switch.
Too-slow operating speed.
x Regularly inspect the Switch.
x Use a better quality Switch.
x Tighten the mounting screws securely.
Use a mounting board.
x Solder the Switch quickly.
x Change the lead wire according to the
carry current and ratings.
x Use a temperature-resistive Switch or
change mounting positions.
x Attach an anti-vibration mechanism.
x Attach a rubber circuit to the solenoid.
x Increase the operating speed (with an
accelerating mechanism).
The sealing part has not been tightened
sufficiently.
The wrong connector has been selected and does
not conform to the cable.
Oil or water penetration.
The wrong Switch has been selected.
x Use a drip-proof or waterproof Switch.
x Use the correct connector and cable.
The terminal part is not molded.
Failures
related to
chemical or
physical
characteristics Deterioration of the rubber part.
The Switch has been burnt or carbonated due to
the penetration of dust or oil.
The expansion and dissolution of the rubber
caused by solvent or lubricating oil.
Cracks due to direct sunlight or ozone.
Damage to the rubber caused by scattered or
heated cuttings.
x Use an oil-resistant rubber or Teflon
bellows.
x Use a weather-resistant rubber or
protective cover.
x Use a Switch with a metal bellows
protective cover.
The oxidation of metal parts resulted due to
corrosive solvent or lubricating oil.
The Switch has been operated in a corrosive
environment, near the sea, or on board a ship.
Corrosion (rusting or cracks).
The electrical deterioration of metal parts of the
Switch resulted due to the ionization of cooling
water or lubricating oil.
x Change the lubricating oil or change
mounting positions.
x Use a crack-resistant material.
The cracking of alloyed copper due to rapid
changes in temperature.
Failures
No actuation.
related to
No current breakage.
electric
Contact welding.
characteristics
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Inductive interference in the DC circuit.
x Add an erasing circuit.
Carbon generated on the surface of the contacts
due to switching operations.
x Use a Switch with a special alloy
contact or use a sealed Switch.
A short-circuit or contact welding due to contact
migration.
x Reduce the switching frequency or use
a Switch with a large switching
capacity.
Contact welding due to an incorrectly connected
power source.
x Change the circuit design.
Foreign materials or oil penetrated into the
contact area.
x Use a protective box.
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
C-9
Precautions for All Switches
Other
x The standard material for the Switch seal is nitrile rubber (NBR),
which has superior resistance to oil. Depending on the type of oil
or chemicals in the application environment, however, NBR may
deteriorate, e.g., swell or shrink. Confirm performance in advance.
x The correct Switch must be selected for the load to ensure contact
reliability. Refer to Precautions for microloads in individual product
information for details.
x Wire the leads as shown in the following diagram.
Correct Wiring
Crimped location
facing up
Lead
Crimp terminal
Terminal
screw
Terminal
Correct
Terminal
screw
Terminal
Incorrect Wiring
Crimped location
facing down
Lead
Crimp terminal
Terminal
screw
Terminal
Incorrect
Terminal
screw
Terminal
Too close to maintain
dielectric strength
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
C-10
WARNING
This catalog is a guide to help customers select the proper safety products. Observe the following items when choosing
products, select the right products for your devices or equipment, and develop a safety-related system to fully utilize product
functions.
Setting Up a Risk Assessment System
The items listed in this catalog must be used properly in terms of product location as well as product performance and
functionality. Part of the process of selecting and using these products should include the introduction and development of a
risk assessment system early in the design development stage to help identify potential dangers in your equipment that will
optimize safety product selection. A badly designed risk assessment system often results in poor choices when it comes to
safety products.
• Related International Standards:
ISO 14121 Principles of Risk Assessment
Safety Policy
When developing a safety system for the devices and equipment that use safety products, make every effort to understand
and conform to the entire series of international and industrial standards available, such as the examples given below.
• Related International Standards:
ISO 12100 Basic Concepts, General Principles for Design
IEC 61508 Functional Safety of Electrical/Electronic/Programmable Electronic Safety-related Systems
Role of Safety Products
Safety products have functions and mechanisms that ensure safety as defined by standards. These functions and
mechanisms are designed to attain their full potential within safety-related systems. Make sure you fully understand all
functions and mechanisms, and use that understanding to develop systems that will ensure optimal usage.
• Related International Standards:
ISO 14119 Interlocking Devices Associated with Guards-Principles for Design and Selection
Installing Safety Products
Make sure that properly educated and trained engineers are selected to develop your safety-related system and to install
safety products in devices and equipment.
• Related International Standards:
ISO 12100 Basic Concepts, General Principles for Design
IEC 61508 Functional Safety of Electrical/Electronic/Programmable Electronic Safety-related Systems
Observing Laws and Regulations
Safety products should conform to pertinent laws, regulations, and standards, but make sure that they are used in
accordance with the laws, regulations, and standards of the country where the devices and equipment incorporating these
products are distributed.
• Related International Standards:
IEC 60204 Electrical Equipment of Machines
Observing Usage Precautions
Carefully read the specifications and precautions listed in this catalog for your product as well as all items in the Operating
Manual packed with the product to learn usage procedures that will optimize your choice. Any deviation from precautions
will lead to unexpected device or equipment failure not anticipated by safety-related systems or fire originating from
equipment failure.
Transferring Devices and Equipment
When transferring devices and equipment, be sure to keep one copy of the Operating Manual and pack another copy with
the device or equipment so the person receiving it will have no problem operating it.
• Related International Standards:
ISO 12100 Basic Concepts, General Principles for Design
IEC 61508 Functional Safety of Electrical/Electronic/Programmable Electronic Safety-related Systems
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
Read and Understand This Catalog
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or
comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if
specified) from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR
FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE
HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL
OTHER WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS, OR COMMERCIAL
LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR
STRICT LIABILITY.
In no event shall responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS
OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT
SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's
application or use of the product.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the
products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product,
machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible
uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.
• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety
equipment, and installations subject to separate industry or government regulations.
• Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE
SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT IS PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons.
It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made.
However, some specifications of the product may be changed without any notice. When in doubt, special model numbers may be assigned to fix
or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual
specifications of purchased product.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
ERRORS AND OMISSIONS
The information in this catalog has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
PERFORMANCE DATA
Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent
the result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
COPYRIGHT AND COPY PERMISSION
This catalog shall not be copied for sales or promotions without permission.
This catalog is protected by copyright and is intended solely for use in conjunction with the product. Please notify us before copying or reproducing this
catalog in any manner, for any other purpose. If copying or transmitting this catalog to another, please copy or transmit it in its entirety.
2007. 11
OMRON Corporation
In the interest of product improvement, specifications are subject to change without notice.
Industrial Automation Company
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(c)Copyright OMRON Corporation 2007 All Rights Reserved.
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