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430 IO-70061 RevK 01-20

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430 IO-70061 RevK 01-20 ... service

Model 430

Installation & Operation Manual. Model 430 ... 2020 ASCO Power Technologies. ... 5. IO-70061. 01/2020. ASCO 430 Surge Protective Device (SPD). Precautions.

Model 430 Surge Protective Device (SPD). Table of Contents. IO-70061. 3. Precautions. Introduction. Unpacking and Preliminary Inspection. Storage.

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Surge Protective Devices

Installation & Operation Manual

Model 430

IO-70061 01/2020

For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

Model 430 Surge Protective Device (SPD)
Table of Contents

Precautions

Introduction

Unpacking and Preliminary Inspection

Storage

Identification Nameplate

SPD Location Considerations

Environment

Audible Noise

Mounting

Service Clearance

Equipment Performance

Electrical

Voltage Rating

Branch Circuit Overcurrent Protection and Disconnect Means

Location of Surge Protective Device (SPD)

System Grounding

Wiring

ASCO 430 Wiring Diagrams

Installation

Surface Mount Installation

Flush Mount Installation

Operation

LED Status Indicators

Audible Alarm

Dry Contacts

Remote Monitor Option

Preventive Maintenance

� 2020 ASCO Power Technologies

IO-70061

Safety Information

IO-70061 01/2020

Important Information
Read these instructions carefully and look at the equipment to become familiar with the device before trying to install, operate, service or maintain it. The following special messages may appear throughout this bulletin or on the equipment to warn of potential hazards or to call attention to information that clarifies or simplifies a procedure.
The addition of either symbol to a "Danger" or "Warning" safety label indicates that an electrical hazard exists which will result in personal injury if the instructions are not followed.
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
DANGER
DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE
NOTICE is used to address practices not related to physical injury. The safety alert symbol shall not be used with this signal word.
Please Note
Electrical equipment should be installed, operated, serviced, and maintained only by qualified personnel. No responsibility is assumed by ASCO Power Technologies for any consequences arising out of the use of this material.
A qualified person is one who has skills and knowledge related to the construction, installation, and operation of electrical equipment and has received safety training to recognize and avoid the hazards involved.

For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

IO-70061 01/2020
Precautions

ASCO 430 Surge Protective Device (SPD)
Precautions
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
� Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, NOM-029-STPS or CSA Z462.
� This equipment must only be installed and serviced by qualified electrical personnel.
� Turn off all power supplying this equipment before working on or inside equipment.
� Always use a properly rated voltage sensing device to confirm power is off. � Replace all devices, doors and covers before turning on power to this
equipment. � This equipment must be effectively grounded per all applicable codes.
Use an equipment-grounding conductor to connect this equipment to the power system ground.
Failure to follow these instructions will result in death or serious injury.
WARNING: This product can expose you to chemicals including DINP, which is known to the State of California to cause cancer, and DIDP which is known to the State of California to cause birth defects or other reproductive harm. For more information go to: www. P65Warnings.ca.gov.
NOTICE
LOSS OF BRANCH CIRCUIT POWER / LOSS OF SURGE SUPPRESSION
� Perform periodic inspection of the surge protective device status indicator lights as part of the preventative maintenance schedule.
� Promptly replace the surge protective device when an alarm state exists.
� Use dry contacts to signal an alarm state to the central supervisory system for unmanned, inaccessible, or critical installations.
� Use multiple surge protective devices to achieve redundancy for critical applications.
Failure to follow these instructions can result in equipment damage.
At end-of-life conditions, Surge Protective Devices (SPDs) can lose their ability to suppress power system transient voltage spikes and attempt to draw excessive current from the line. This SPD is equipped with overcurrent and overtemperature components that will automatically disconnect the surge suppression elements from the mains should the surge suppression elements reach end of life. Tripping of the branch circuit breaker or fuse feeding the SPD can occur. Mitigate the tripping of the branch circuit breaker or fuse feeding the SPD by coordinating the surge suppression elements with the branch circuits.

For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

ASCO 430 Surge Protective Device (SPD)
Introduction

IO-70061 01/2020

Introduction
Note: For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
� Do not energize the surge protective device until the electrical system is completely installed, inspected and tested.
� Ensure all conductors are connected and functional. � Verify the voltage rating of the device and system prior to energizing. � Perform high-potential insulation testing, or any other tests where surge
protective device components will be subjected to voltages higher than their rated turn-on voltage, with the neutral and surge protective device disconnected from the power source
Failure to follow these instructions will result in death or serious injury.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
� Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, NOM-029-STPS or CSA Z462.
� This equipment must only be installed and serviced by qualified electrical personnel.
� Turn off all power supplying this equipment before working on or inside equipment.
� Always use a properly rated voltage sensing device to confirm power is off.
� Replace all devices, doors and covers before turning on power to this equipment.
� This equipment must be effectively grounded per all applicable codes. Use an equipment-grounding conductor to connect this equipment to the power system ground.
Failure to follow these instructions will result in death or serious injury.
Proper installation is imperative to maximize the ASCO 430 SPDs effectiveness and performance. Follow the steps outlined in this instruction bulletin to ensure proper installation. Read the entire instruction bulletin before beginning the installation. These instructions are not intended to replace national or local electrical codes. Check all applicable electrical codes to verify compliance. Installation of ASCO 430 surge suppressors must only be performed by qualified electrical personnel.

For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

IO-70061 01/2020

ASCO 430 Surge Protective Device (SPD)
Unpacking and Preliminary Inspection

Unpacking and Preliminary Inspection Storage Identification Nameplate
SPD Location Considerations
Environment Audible Noise Mounting Service Clearance Equipment Performance

Inspect the entire shipping container for damage or signs of mishandling before unpacking the device. Remove the packing material and further inspect the device for any obvious shipping damage. If any damage is found and is a result of shipping or handling, immediately file a claim with the shipping company.
The device should be stored in a clean, dry environment. Storage temperature is -40� F to +140� F (-40� C to +60� C). All of the packaging materials should be left intact until the device is ready for installation.
The identification nameplate is located on the side of the unit.

ASCO POWER TECHNOLOGIES, LP

CAT# 430_____________

PART# __XDS__________

UL 1449-4

VOLTAGE: ____________V 50-60Hz

SPD TYPE __

MAX RATED AMBIENT AIR TEMP: ________

MFG DATE: _________ MCOV: ____ / _____

UL Holigram

ENC TYPE: XXXX In: 20 kA

VOLTAGE PROTECTION RATING
L-N ____ L-G ____

____V

N-G ____ L-L ____

Suitable for use on a circuit capable of delivering not more than _________ rms symmetrical amperes

The device is designed to operate in an ambient temperature range of -13 �F to +140 �F (-25�C to +60�C) with a relative humidity of 0 to 95% non-condensing. This device has a Type 4X housing.
The device background noise is negligible and does not restrict the location of the installation.
The device has been designed to be surface mounted. An additional flush mount kit is also available if required (KITFMXF) or stainless steel flush mount kit (KITFMXFSS).
The service clearance should meet all applicable code requirements.
To obtain optimum surge suppression, locate the SPD as close as possible to the circuitry being surge-limited to minimize the wire length. Minimizing the wire length reduces the impedance between the circuitry and the SPD.
Refer to the Voltage Protection Rating (VPR) values on the SPD nameplate. These VPR values were obtained by testing the SPD with six-inch long leads (per UL1449). For every additional foot of wire beyond six inches, the effective VPR increases by approximately 160 volts.

For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

ASCO 430 Surge Protective Device (SPD)
Electrical

IO-70061 01/2020

Electrical

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
Confirm the surge protective device voltage rating on the module or nameplate label is not less than the operating voltage.
Failure to follow these instructions will result in death or serious injury.

Voltage Rating

Prior to mounting the SPD, verify that the device has the same voltage rating as the power distribution system in which it is installed. Compare the nameplate voltage or model number on the SPD with the nameplate of the electrical distribution equipment.
The specifier or user of the device should be familiar with the configuration and arrangement of the power distribution system in which the SPD is to be installed. The system configuration of any power distribution system is based strictly on how the secondary windings of the transformer supplying the service entrance main or load are configured. This includes whether or not the transformer windings are referenced to earth via a grounding conductor. The system configuration is not based on how any specific load or equipment is connected to a particular power distribution system. See Table 1 for the service voltage of each SPD.

Table 1: Model 430 Service Voltages

430
Model 430 Product Line

Voltage Codes

P
Per Phase kA Rating
System

kA Rating Per Phase

A
Modes of Protection (Default)

C
Connection Type

Monitoring Options

J
Enclosure

UL 1449 Type1/Type 2

0
Option(s)

120S 120Y 240H 277Y 347Y 480D 120N 127N 127S 127Y 220Y 230Y 240N 240S 240Y 240C 240D 254Y 277N 300N 300Y 480N 480C 600C 600D

= 120/240V Split Phase - 1�, 3W+Grnd = 208Y/120V Wye - 3� 4W+Grnd = 240/120V High Leg Delta (B High) = 480Y/277V Wye - 3� 4W+Grnd = 600Y/347V Wye - 3� 4W+Grnd = 480V Delta - 3� 3W+Grnd & HRG Wye = 120V Single Phase = 127V Single Phase = 127/254V Split Phase - 1� 3W+Grnd = 220Y/127V Wye - 3� 4W+Grnd = 380Y/220V Wye - 3� 4W+Grnd = 400Y/230V Wye - 3� 4W+Grnd = 240V Single Phase - Not split phase = 240/480V Split Phase - 1�, 3W+Grnd = 415Y/240V Wye - 3� 4W+Grnd = 240V B Corner Grnd Delta, 3� 3W+Grnd = 240V Delta - 3� 3W+Grnd = 440Y/254V Wye - 3� 4W+Grnd = 277V Single Phase = 300V Single Phase = 520Y/300V Wye - 3� 4W+Grnd = 480V Single Phase (1 Hot, 1 Neu, 1 Grnd) = 480V B Corner Grnd Delta, 3� 3W+Grnd = 600V B Corner Grnd Delta, 3� 3W+Grnd = 600V Delta - 3� 3W+Grnd & HRG Wye

10 = 100kA 15 = 150kA 20 = 200kA

C = Compression Lugs

S = LEDs A = LEDs/Audible Alarm/Relay

1 = UL 1449 Type 1 2 = UL 1449 Type 2,
(Includes UL1283 Filter)
J = NEMA 4X Non-Metallic (Polycarbonate) Size - 6" x 6" x 4"

For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

IO-70061 01/2020

ASCO 430 Surge Protective Device (SPD)
Electrical

Branch Circuit Overcurrent Protection and Disconnect Means

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
� Use conductors rated for the Overcurrent Protection Device (OCPD) per applicable codes.
� Use conductors rated for the application per applicable codes.
Failure to follow these instructions will result in death or serious injury.

Location of Surge Protective Device (SPD)

A branch circuit Overcurrent Protection Device (OCPD) either in the form of a circuit breaker or fuse must be provided for the ASCO 430 Type 2 device. The branch circuit OCPD should either provide or include a disconnecting means.
Since the current drawn by the ASCO 430 device during normal operation is negligible, the ASCO 430 device can be connected to a dedicated, separate branch circuit or connected to a suitable existing branch circuit.
When connected to a separate, dedicated branch circuit, the OCPD setting must be selected to protect the conductors feeding the ASCO 430 device per applicable state and local building codes.
UL 1449 Type 1 SPDs have been designed and approved for line side applications prior to the main service disconnect without supplemental overcurrent protection. Type 2 SPDs must be installed on the load side of the main Overcurrent Protective Device (OCPD). All installations should either provide or include a disconnecting means.
Type 1 SPDs can also be used in Type 2 applications (load side of OCPD). When either Type 1 or Type 2 SPDs are used on the load side, they must be installed per local codes.
Locate the SPD as close as possible to the circuit mains being surge-limited to minimize the wire length and optimize SPD performance. Avoid long wire runs so that the device will perform as intended. To reduce the impedance that the wire displays to surge currents, the phase, neutral, and ground conductors (wye and high-leg delta configurations), or phase and ground conductors (delta configurations), must be routed within the same conduit and tightly bundled or twisted together to optimize device performance. Avoid sharp bends in the conductors. See Figures 2 and 3.
Figure 2: SPD Wiring for Wye and High-Leg Delta Configurations
To load(s)

Phases Neutral Ground

Neutral bus Ground bus

Panel

Phase A Phase B Phase C
Neutral
Ground SPD
Interconnect wiring � Minimize length � Avoid sharp bends

For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

ASCO 430 Surge Protective Device (SPD)
System Grounding
Figure 3: SPD Wiring for Delta Configurations
To load(s)

IO-70061 01/2020

System Grounding

Phases Ground

Phase A Phase B Phase C
Ground
SPD
Interconnect wiring � Minimize length � Avoid sharp bends

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
� Ungrounded power systems are inherently unstable and can produce excessively high line-to-ground voltages during certain electrical fault conditions. Durign these electrical fault conditions any electrical equipment, including a surge protective device, may be subjected to voltages which exceed their designed ratings.
� Make an informed decision before installing any electrical equipment on an ungrounded power system.
Failure to follow these instructions will result in death or serious injury.
NOTICE
LOSS OF SURGE SUPPRESSION
� Verify that the service entrance equipment is bonded to ground in accordance with all applicable codes.
Failure to follow these instructions can result in equipment damage.
The ASCO 430 has SPD elements connected from phase to ground. It is critical that there be a robust and effective connection to the building grounding structure. The grounding connection must utilize an equipment grounding conductor run with the phase and neutral connection of the power system. Do not connect the SPD to a separate isolated ground. For proper voltage suppression by the ASCO 430 SPD, use a single-point ground system where the service entrance grounding electrode system is connected to, and bonded to, all other available electrodes, building steel, metal water pipes, driven rods, etc. (for reference, see NEC Art 250). The ground impedance measurement of the electrical system must be as low as possible and in compliance with all applicable codes for sensitive electronic and computer systems.

For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

IO-70061 01/2020
Wiring

ASCO 430 Surge Protective Device (SPD)
Wiring
NOTICE
LOSS OF SURGE SUPPRESSION
� Install an insulated grounding conductor inside a metallic raceway when the raceway is used as an additional grounding conductor. Size the conductor in accordance with all applicable codes.
� Maintain adequate electrical continuity at all raceway connections. � Do not use isolating bushings to interrupt a metallic raceway run. � Do not use a separate isolated ground for the surge protective device. � Verify proper equipment connections to the grounding system. � Verify ground grid continuity by inspections and testing as part of a
comprehensive electrical maintenance program.
Failure to follow these instructions can result in equipment damage.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
� Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, NOM-029-STPS or CSA Z462.
� This equipment must only be installed and serviced by qualified electrical personnel.
� Turn off all power supplying this equipment before working on or inside equipment.
� Always use a properly rated voltage sensing device to confirm power is off.
� Replace all devices, doors and covers before turning on power to this equipment.
� This equipment must be effectively grounded per all applicable codes. Use an equipment-grounding conductor to connect this equipment to the power system ground.
� Confirm the surge protective device voltage rating on the module or nameplate label is not less than the operating voltage.
Failure to follow these instructions will result in death or serious injury.

For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

ASCO 430 Surge Protective Device (SPD)
Wiring

IO-70061 01/2020

Table 2: Wiring Diagram Location1

Wiring for:

Figure and Page

Single-phase, three-wire, grounded installation

Figure 6 on page 11

Single-phase, two-wire, + ground

Figure 7 on page 11

Three-phase, three- or four-wire, grounded WYE installation

Figure 8 on page 12

Three-phase, three- or four-wire, high-leg delta installation

Figure 9 on page 12

Three-phase, three-wire + ground, delta installation

Figure 10 on page 12

Three-Phase, Three-Wire, Corner Grounded, Delta Installation

Figure 11 on page 12

1 See "Dry Contacts" on page 15 for dry contact wiring.

Follow steps 1 through 7 to make wiring connections:
1. Turn off all power supplying this equipment before working on or inside any enclosure containing this equipment.
2. Confirm SPD is rated for your system by comparing voltage measurements to the Line Voltage (L-L, L-N) on the product label.
3. Identify proper location for the SPD. Locate as close as possible to the mains of the panel being surge-limited so the wires are as short as possible. Mount unit securely. Note: The SPD must be installed in an accessible location (not within walls unless surface mounted with the ASCO KITFMXF flush mount kit).
4. Install in accordance with national and local electrical codes and match the branch circuit Overcurrent Protection Device (OCPD) to the wire size.
5. Twist conductors 1/2 turn or more for every twelve inches of length. 6. Do not loop or coil wires. Be sure to maintain adequate wire bending
space per NEC. 7. Use on solidly grounded systems unless the SPD model is designed for
installation on ungrounded/HRG systems.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
For outdoor installation use and appropriate weather sealing at the nipple (o-ring, sealing conduit, etc).
Failure to follow these instructions will result in death or serious injury.

Figure 4: Conduit Installation

CORRECT INSTALLATION
Threaded 6 Full Turns

INCORRECT INSTALLATIONS

POOR ENGAGEMENT
Conduit needs to be threaded
in farther

OVERTIGHTENED
Stresses box, ONLY
6 full turns required

For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

IO-70061 01/2020

ASCO 430 Surge Protective Device (SPD)
Wiring

Figure 5: Typical panel Installation
Loads

Use closest breaker to SPD Locate SPD close to intended breaker

A BC BREAKER

Keep Leads Short as Possible Avoid Sharp Bends
Rotate Model 430 such that LED indicator is most visible

Outdoor installation requires appropriate weather sealing at nipple (o-ring, sealing conduit, etc.)
Figure 6: Single-Phase, Three-Wire, Grounded Installation

Installation, Operation and Maintenance Manual

IO-70061 RevJ 09-18

Figure 7: Single-Phase, Two-Wire, Ground

Phase A (Black)

Neutral (White)

Ground (Green)

AB N SERVICE

DRY CONTACTS NO C NC
C
G

For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

ASCO 430 Surge Protective Device (SPD)
Wiring

IO-70061 01/2020

Note 1: The neutral conductor is not present on three-wire Wye grounded power systems. For improved operation of the SPD, bond the neutral and ground lugs together inside the SPD.

Figure 8: Three-Phase, Three- or Four-Wire, Grounded WYE Installation1

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
� The high-leg of the power system must connect to the B phase lug of the SPD.
Failure to follow these instructions will result in death or serious injury.

Figure 9: Three-Phase, Three- or Four-Wire, High-Leg Delta Installation2

Note 2: The neutral conductor is not present on three-wire High-Leg Delta grounded power systems. For improved operation of the SPD, bond the neutral and ground lugs together inside the SPD.

Figure 10: Three-Phase, Three-Wire, Delta Installation

Figure 11: Three-Phase, Three-Wire, CorTneWr OGroPuOndLeEd, Delta Installation

}V Phase A (Black) Phase C (Black) Ground (Green)

A
A
SERVICE

DRY CONTACTS NO C NC
C
C
G

For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

IO-70061 01/2020

ASCO 430 Surge Protective Device (SPD)
Installation

Installation
Surface Mount Installation
6.0 (152.4)

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
� Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, NOM-029-STPS or CSA Z462.
� This equipment must only be installed and serviced by qualified electrical personnel.
� Turn off all power supplying this equipment before working on or inside equipment.
� Always use a properly rated voltage sensing device to confirm power is off.
� Replace all devices, doors and covers before turning on power to this equipment.
� This equipment must be effectively grounded per all applicable codes. Use an equipment-grounding conductor to connect this equipment to the power system ground.
Failure to follow these instructions will result in death or serious injury.
Note: Mount the unit as close as possible to the protected panel.
1. Make perforations on the wall according to the screw holes located on the enclosure. See Figure 11. (Rotate dimensions 90� as appropriate depending on orientation).
2. Configure the electrical conductor and conduit connection consistent with the installation instructions on pages 9 through 13.
3. Install faceplate/cover, applying a torque of 5 lb-in (0.5 N�m) to the four screws, prior to energizing and testing the unit.

Figure 11: General Dimensions (in. / mm.)

6.0 (152.4)

7.5 (191.6)
6.7 (172.5)

6.0 (152.4)
5.3 (136.1)

� 0.3 (� 7.9)

3.4 in. (25.4 mm) Female NPT thread

0.8 3.9 (22.2) (99.7)
3.4 (86.6)
� 1.0 (� 25.4)

For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

ASCO 430 Surge Protective Device (SPD)
Operation

IO-70061 01/2020

Flush Mount Installation

Note: Mount the unit as close as possible to the protected panel.
1. Create a wall opening 6 3/4 in. x 6 1/16 in. and 3 15/16 in. of clearance. See Figure 12. (Rotate dimensions 90� as appropriate depending on orientation).
2. Configure an appropriate backing plate inside the wall cavity 3 15/16 inches from the wall face such that the unit will be supported from its back.
3. Configure the electrical conductor and conduit connection consistent with the installation instructions on pages 9 through 13. Preplan connections such that they are completed prior to fastening the unit to the backing plate.
4. Install faceplate/cover, applying a torque of 5 lb-in (0.5 N�m) to the four screws, prior to energizing and testing the unit.
FiFgiugruere121:2F: lusFhluMsohuMntount

Operation

Mounting plate

Mounting plate installed 3 15/16 in. (100 mm) from the front wall.

Step 1: Prepare wall and SPD

Flexible conduit
Step 2: Insert into wall

6.75 in. (171 mm)
Wall opening

Wall cutout 6 3/4 in. font view (171 mm)
Tall

Flexible conduit
Step 3: Mount the SPD

Flexible conduit
Step 4: Mount the lid

6 1/6 in. (154 mm)
Wide

in. (mm)

Note: Supplemental instructions for deep wall mounting (walls over 4 in. (101 mm) thick using the enclosed mounting feet.

For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

IO-70061 01/2020
LED Status Indicators
Audible Alarm Dry Contacts

ASCO 430 Surge Protective Device (SPD)
Operation

Diagnostic LEDs are located on the front of the ASCO 430 SPD device. They operate as follows:
� Verify that all phase voltages are present. If any of the LEDs are not illuminated, the device may not be installed correctly. Check the power supply and service voltage. Upon energizing the SPD, check the LED status.
� If all of the LEDs are illuminated, surge suppression is operating. � If one or more LEDs are not illuminated, there is a loss of surge
suppression on that phase. � If an inoperative condition occurs the device must be replaced by qualified
electrical personnel.

Figure 13: Diagnostic Operation

Indicator light ON = OK Indicator Light OFF = loss of surge suppression on that phase and
Audible alarm ON = Loss of surge suppresion

Indicator light ON (red) = loss of surge suppresion
The audible alarm does not have a silence switch. Silence the alarm by removing power from the SPD. The alarm indicates that the device needs replacement by qualified electrical personnel.
CAUTION
INADEQUATE DRY CONTACT USE � Do not supply more than 24 Vdc / 24 Vac and no more than a current
of 2 A.
Failure to follow these instructions can result in injury and equipment damage.
The ASCO 430 series SPD device is provided with dry contacts. The unpowered state shall be closed between the common wire and the normally closed wire. This is also the alarm condition. The opposite state, closed between the common wire and the normally open wire, indicates that power is on to the unit and that no alarm condition exists (See Table 3). These dry contact leads can be used for remote indication of the SPD operating status to a computer interface board or emergency management system. Also, these dry contact leads are designed to work with the SPD remote monitor option described in the following section.

For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

ASCO 430 Surge Protective Device (SPD)
Operation

IO-70061 01/2020

Remote Monitor Option

The dry contacts are designed for a maximum voltage of 24 V dc / 24 V ac and a maximum current of 2 A. Higher energy applications may require additional relay implementation outside the SPD. Damage to the SPD's relay caused by use with energy levels in excess of those discussed in this instruction bulletin are not covered by warranty. For application questions, call the ASCO Tech Support at (800) 237-4567 or email customercare@ ascopower.com.

Table 3: Dry Contact Configuration

Dry Contact Terminal Power off or Alarm Condition

N/O (Normally Open)
COM Common
N/C Normally Closed

Open Common Closed

Power on and no Alarm Condition Closed
Common
Open

The remote monitor option has two LEDs, one red and one green, and an audible alarm with an enable/disable switch. Normal status is a lit green LED, and no audible alarm. To test the integrity of the remote monitor, press the push-to-test switch. The green LED will turn off, the red LED will turn on, and the alarm will sound, if the alarm is enabled. Releasing the switch will complete the test; the red LED will turn off, the green LED will turn on and the alarm will shut off.

If suppression on any phase is lost, the green LED will turn off, the red LED will illuminate and an alarm will sound. The audible alarm can be silenced by pushing the alarm enable/disable/test switch. The alarm will silence and the green alarm LED will not be lit. The red LED will continue to be illuminated until the inoperative condition has been cleared.

The remote monitor includes a 120 V ac to 12 V dc adapter with a six-foot power cord. Connections are made to the ASCO 430 SPD diagnostic panel with the twenty-four inch (61 cm) dry contact leads (provided). To extend the remote monitor further (up to 1,000 ft. (305 m), use an additional length of solid or stranded 22 to 14 AWG wire (not provided).

For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

IO-70061 01/2020

ASCO 430 Surge Protective Device (SPD)
Preventive Maintenance

(114.5)

(99.5)

(95.9)

(32.0)

(89.1) (100.3)

(74.0)

(70.5)

TEXTURED FLUSH OR RECESSED SMOOTH 0.030 (.80) DEEP OPPOSITE SIDE

(50.2) (79.1)

(6.4)
Preventive Maintenance

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
� Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, NOM-029-STPS or CSA Z462.
� This equipment must only be installed and serviced by qualified electrical personnel.
� Turn off all power supplying this equipment before working on or inside equipment.
� Always use a properly rated voltage sensing device to confirm power is off.
� Replace all devices, doors and covers before turning on power to this equipment.
� This equipment must be effectively grounded per all applicable codes. Use an equipment-grounding conductor to connect this equipment to the power system ground.
Failure to follow these instructions will result in death or serious injury.
Inspect the SPD periodically to maintain system performance and continued transient voltage surge suppression. During this inspection, check the state of the display LED status indicators.

For troubleshooting, call technical assistance at 1-800-237-4567 or customercare@ascopower.com

14550 58th Street North Clearwater, Florida 33760
se.com/us/en/work/support 1-888-778-2733

While every precaution has been taken to ensure accuracy and completeness in this literature, Schneider Electric assumes no responsibility, and disclaims all liability for damages resulting from use of this information or for any errors or omissions.
IO-70061 RevK 01-20