WSC 1116 Submittal Sheet Relay25

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The world’s best-selling electric floor heating brand ™

GENERAL PURPOSE RELAY-25
SUBMITTAL SHEET WSC-1116

PRODUCT CODE
RELAY-25

PRODUCT DESCRIPTION
The Relay-25 is a 25A-240V relay used to increase the load switching
capacity of the Warmup thermostats (15A). Together a thermostat
and relay can switch up to 800 sqft of heated floors.

FEATURES
•
•
•
•
•
•
•
•
•

Compatible with NADCM, NADWM, NADWS, FOIL and WODH systems.
UL Class B construction standard.
AC-activated coil that handles 200 to 240 VAC at either 50 or 60 Hz.
Miniature size with maximum switching capacity.
Flame resistant materials (UL94V-0-qualifying) used for all insulation
material.
Screw terminals for line, loads and coils.
Conforms to UL, CSA, TUV and meets IEC 950.
RoHS Compliant.
240V coils

APPLICATION
•

This Relay-25 fits in a standard single gang box. It is used in conjunction with the 4iE® Smart
thermostat series as well as the Tempo thermostat, in order to expand the original 15 amp
capacity. It is specifically designed for large applications beyond 800 sqft.

•

Built for quiet operation, the relay can be mounted in an adjacent closet or in a space above or
below. It connects to the 4iE® Smart thermostat via a 240V coil on the relay.

WARMUP INC.
USA: us@warmup.com
Tel.: 1-888-927-6333
www.warmup.com

CANADA: ca@warmup.com
Tel.: 1-888-592-7687
www.warmup.ca

The world’s best-selling electric floor heating brand ™

The world’s best-selling electric floor heating brand ™

GENERAL PURPOSE RELAY-25
SUBMITTAL SHEET WSC-1116

LIMITATIONS
•
•
•
•

For use with indoor floor heating systems only.
Use the power relay in a dry environment free from excessive dust, SO2, H2S, or organic gas.
Do not allow a voltage greater than the maximum allowable coil voltage to be applied continuously.
Do not use the power relay outside of specified voltages and currents.

INSTALLATION
Although there are no specific limits on the installation site, it should be as dry and dust-free as possible.
Using in an atmosphere of high humidity and corrosive gas may deteriorate its performance characteristic
caused by condensation or corrosive products, resulting in failure or burn damage of the Relay.

Screw Terminal Models

WARMUP INC.
USA: us@warmup.com
Tel.: 1-888-927-6333
www.warmup.com

CANADA: ca@warmup.com
Tel.: 1-888-592-7687
www.warmup.ca

The world’s best-selling electric floor heating brand ™

The world’s best-selling electric floor heating brand ™

GENERAL PURPOSE RELAY-25
SUBMITTAL SHEET WSC-1116

Heating Loads Connect to Relay-25 only, controlled by the 4iE®
N.B.

240V SUPPLY
WITHOUT
GFCI
PROTECTION
L1-LOAD-L2
HEATING
(MAX 3600W/
15 Amps)

L1-LINE
L2-LINE

All heating loads connect to Relay-25
only, controlled by 4iE

240V
COIL SUPPLY

Hot (240V)
Hot (240V)

240V GFCI
PROTECTED
SUPPLY

L1-LINE-L2
POWER
SUPPLY

0

Hot (240V)

1

2

4

6

8

Hot (240V)

L1-LOAD-L2
L2
L1-LINE
1

2

3
EXT

FLOOR SENSOR
(NO POLARITY)

The world’s best-selling floor heating brand™
US Office:
WARMUP INC, 52 Federal Road, Unit 1F, Danbury, CT 06810
W: www.warmup.com E: us@warmup.com
T: (888) 927-6333 F: (888) 927-4721
Canadian Office:
WARMUP INC
W: www.warmup.ca E: ca@warmup.com
T: (888) 592-7687 F: (905) 366-7324

Heater/s
Max 25A

TITTLE

Wiring Diagram
4iE-04_Realy-25
DATE

DRAWN

REVISION

16.10.2017

GW

A

PDF FILE
Warmup - WD - 4iE-04_Relay-25 - 2017-10-16.pdf
Any electrical works undertaken should be completed by a suitable
qualified competent electrician.
Any interconnecting electrical components that form part of a hydronic
system should be connected to a 3A power supply, with the whole
system having a single point of isolation.

Heating Loads Connect to Relay-25 and 4iE®

The Warmup word and associated logos are trade marks. © Warmup
Plc. 2010 - Regd. TM Nos. 1257757, 4409926, 5265707. E & OE. Registered
in England No. 2955213.

Relay-25: max load 25A
Max load: 15A
Total Max Load: 40A

N.B.

Heating loads connect to Relay-25
and 4iE:
Relay-25
4iE
Total

240V SUPPLY
WITHOUT
GFCI
PROTECTION
L1-LOAD-L2
HEATING
(MAX 3600W/
15 Amps)

L1-LINE
L2-LINE
L1-LINE-L2
POWER
SUPPLY

240V
COIL SUPPLY

Hot (240V)
Hot (240V)

240V GFCI
PROTECTED
SUPPLY
Hot (240V)

0
2

1
4

6

8

Heater/s
Max 15A

Hot (240V)

L1-LOAD-L2

Max load 25A
Max load 15A
Max load 40A

L2
L1-LINE
1

2

3
EXT

FLOOR SENSOR
(NO POLARITY)

The world’s best-selling floor heating brand™
US Office:
WARMUP INC, 52 Federal Road, Unit 1F, Danbury, CT 06810
W: www.warmup.com E: us@warmup.com
T: (888) 927-6333 F: (888) 927-4721

Heater/s
Max 25A

Canadian Office:
WARMUP INC
W: www.warmup.ca E: ca@warmup.com
T: (888) 592-7687 F: (905) 366-7324

TITTLE

Wiring Diagram
4iE-04_Realy-25_25-40A
DATE

DRAWN

REVISION

16.10.2017

GW

A

PDF FILE
Warmup - WD - 4iE-04_Relay-25_25-40A - 2017-10-16.pdf
Any electrical works undertaken should be completed by a suitable
qualified competent electrician.
Any interconnecting electrical components that form part of a hydronic
system should be connected to a 3A power supply, with the whole
system having a single point of isolation.
The Warmup word and associated logos are trade marks. © Warmup
Plc. 2010 - Regd. TM Nos. 1257757, 4409926, 5265707. E & OE. Registered
in England No. 2955213.

WARMUP INC.
USA: us@warmup.com
Tel.: 1-888-927-6333
www.warmup.com

CANADA: ca@warmup.com
Tel.: 1-888-592-7687
www.warmup.ca

The world’s best-selling electric floor heating brand ™

The world’s best-selling electric floor heating brand ™

GENERAL PURPOSE RELAY-25
SUBMITTAL SHEET WSC-1116

TECHNICAL SUPPORT
Warmup is available 24/7/365 at (888) 927-6333.
For quotes, layouts and specific technical information, contact us at:
Warmup USA
(888) 927-6333
us@warmup.com
Warmup CANADA
(888) 592 7687
ca@warmup.com

RELATED PRODUCTS
• 4iE® Smart WiFi Thermostat - see WSC-0926

WARMUP INC.
USA: us@warmup.com
Tel.: 1-888-927-6333
www.warmup.com

CANADA: ca@warmup.com
Tel.: 1-888-592-7687
www.warmup.ca

The world’s best-selling electric floor heating brand ™



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