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Saturday, September 23, 2023

on video 3-phase AC Surge Protective Device SPD Installation and Wiring Diagram for Industrial and Commercial


 A surge protective device SPD is a protective device for limiting transient voltages by diverting or limiting surge current and is capable of repeating these functions as specified SPDs were previously known as Transient Voltage Surge Suppressors TVSS or secondary surge arrestors SSA.

what is a 3 phase line

Three phase power is a three wire ac power circuit with each phase ac signal 120 electrical degrees apart. Residential homes are usually served by a single phase power supply, while commercial and industrial facilities usually use a three-phase supply.

In this video, you'll find the guide to AC SPD installation and wiring diagram in the sub-distribution box, for detailed reference.


Since 2010, LSP has been dedicated to designing and manufacturing surge protective devices protecting installations from transient overvoltages that result from switching events and lightning strikes.

In an electrical systems, surge protection devices (SPDs) are usually installed in tap-off configuration (in parallel) between the live conductors and the earth. The operating principle of SPD can be similar to that of a circuit breaker.

In an electrical systems, surge protection devices (SPDs) are usually installed in tap-off configuration (in parallel) between the live conductors and the earth. The operating principle of SPD can be similar to that of a circuit breaker.

Protect your most valuable commercial equipment from transient surges!


ICM Controls 530 series SPD's include:

ICM530 (3-Phase Delta 240VAC or Wye 120/208VAC)

ICM531. (3-Phase Delta 480VAC or Wye 277/480VAC)

ICM532. (3-Phase Delta 600VAC or Wye 347/600VAC)

ICM533. (3-Phase Delta High Leg 120/240VAC)

The ICM530 Series is 4 models of Type 1 and Type 2 Three-Phase Surge Protective Devices for Three-phase Delta and Three-phase Wye configurations.


When a surge occurs, the ICM three-phase surge suppressor will absorb the surge up to the specified limitations of the device. ICM incorporates superior thermally protected metal oxide varistor technology into the three-phase surge suppressors, which allows for safe disabling when a surge exceeds the thermal limits of the device. There is a single status light on the controls which identifies operational status when illuminated.


The ICM 3-phase surge suppressors can be installed as a Type 1 or Type 2 device for both indoor and outdoor applications.


 A surge protective device SPD is a protective device for limiting transient voltages by diverting or limiting surge current and is capable of repeating these functions as specified SPDs were previously known as Transient Voltage Surge Suppressors TVSS or secondary surge arrestors SSA.

what is a 3 phase line

Three phase power is a three wire ac power circuit with each phase ac signal 120 electrical degrees apart. Residential homes are usually served by a single phase power supply, while commercial and industrial facilities usually use a three-phase supply.

In this video, you'll find the guide to AC SPD installation and wiring diagram in the sub-distribution box, for detailed reference.


Since 2010, LSP has been dedicated to designing and manufacturing surge protective devices protecting installations from transient overvoltages that result from switching events and lightning strikes.

In an electrical systems, surge protection devices (SPDs) are usually installed in tap-off configuration (in parallel) between the live conductors and the earth. The operating principle of SPD can be similar to that of a circuit breaker.

In an electrical systems, surge protection devices (SPDs) are usually installed in tap-off configuration (in parallel) between the live conductors and the earth. The operating principle of SPD can be similar to that of a circuit breaker.

Protect your most valuable commercial equipment from transient surges!


ICM Controls 530 series SPD's include:

ICM530 (3-Phase Delta 240VAC or Wye 120/208VAC)

ICM531. (3-Phase Delta 480VAC or Wye 277/480VAC)

ICM532. (3-Phase Delta 600VAC or Wye 347/600VAC)

ICM533. (3-Phase Delta High Leg 120/240VAC)

The ICM530 Series is 4 models of Type 1 and Type 2 Three-Phase Surge Protective Devices for Three-phase Delta and Three-phase Wye configurations.


When a surge occurs, the ICM three-phase surge suppressor will absorb the surge up to the specified limitations of the device. ICM incorporates superior thermally protected metal oxide varistor technology into the three-phase surge suppressors, which allows for safe disabling when a surge exceeds the thermal limits of the device. There is a single status light on the controls which identifies operational status when illuminated.


The ICM 3-phase surge suppressors can be installed as a Type 1 or Type 2 device for both indoor and outdoor applications.

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