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SQUARE D HL4IMA12C Surge Protective Device - Square D QO, HOM, I-Line and NQ Internal Panel-Mount SPDs
SQUARESquare D QO, HOM, I-Line and NQ Internal Panel-Mount SPDs

SQUARE D HL4IMA12C Surge Protective Device

The SQUARE D Surge Protection Device (MPN HL4IMA12C) is a three-phase, 277/480V AC Wye internal panel-mount SPD designed for I-Line panelboards. It features 4 wires plus ground, N-G configuration, 320 V AC, 2000V…

SKU 3G-OTH-127850

Brand
SQUARE
Item
D HL4IMA12C Surge Protective Device
Part Number
HL4IMA12C
Category
Square D QO, HOM, I-Line and NQ Internal Panel-Mount SPDs
Available to Order
Also known as:HL4IMA12CSQUARE
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Technical Specifications

SQUARE
Manufacturer Part Number
HL4IMA12C
Type
4 + Ground Wires
AC
320 V
Poles
3
AC Wye
277/480V

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SQUARE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SQUARE D Surge Protection Device (MPN HL4IMA12C) is a three-phase, 277/480V AC Wye internal panel-mount SPD designed for I-Line panelboards. It features 4 wires plus ground, N-G configuration, 320 V AC, 2000V (L-L) protection, and a 200kA surge current rating. This unit includes dry contacts and is part of the Square D QO, HOM, I-Line and NQ series.

Frequently Asked Questions

What is the SQUARE D HL4IMA12C surge protection device used for?

The SQUARE D HL4IMA12C is a three-phase, 277/480V AC Wye internal panel-mount surge protective device (SPD) designed for I-Line panelboards. It protects electrical equipment from transient overvoltages and surges in commercial and industrial power distribution systems, with a 200kA surge current rating and 2000V L-L protection.

What are the specifications of the SQUARE D HL4IMA12C?

The SQUARE D HL4IMA12C is a 3-pole SPD with 4 wires plus ground, N-G configuration, and 320 V AC. It operates on 277/480V AC Wye systems, provides 2000V (L-L) protection, and has a 200kA surge current rating. It includes dry contacts and is designed for I-Line panelboards from the Square D QO, HOM, I-Line, and NQ series.

Where to buy the SQUARE D HL4IMA12C worldwide?

You can source the SQUARE D HL4IMA12C surge protection device through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine Square D components for commercial and industrial applications.

How to install the SQUARE D HL4IMA12C surge protection device?

Install the SQUARE D HL4IMA12C in a compatible I-Line panelboard by mounting it on the bus bar. Connect the 4 wires plus ground per the N-G configuration, ensuring the system is de-energized. Follow NEC guidelines for SPD installation, including proper wire sizing and bonding. Always consult the manufacturer's manual for torque specs and clearance requirements.

Used in

Common applications for SQUARE
Commercial building lighting control — Square D 8903LO60V04 (6-pole, 30 A, 277V AC coil) for switching large-area lighting in offices and retail spaces.
Warehouse lighting — Square D 8903LO1000V02 (10-pole, 30 A, 120V AC coil) for centralized control of high-bay lighting circuits.
Parking lot lighting — Square D 8903SPO2V04 (3-pole, 60 A, 277V AC coil) for remote switching of exterior lighting groups.
Manufacturing facility lighting — Square D 8903LO1200V02 (12-pole, 30 A, 120V AC coil) for multi-circuit lighting control in production areas.
Industrial facility lighting — Square D 8903SMO2V02 (3-pole, 30 A, 120V AC coil) for switching lighting in small zones or individual rooms.
Large-scale lighting systems — Square D 8903LO80V02 (8-pole, 30 A, 120V AC coil) for controlling multiple lighting circuits from a single point.
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SQUARE Products

3G Electric supplies SQUARE square d qo, hom, i-line and nq internal panel-mount spds. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Three-phase, 120/208V AC Wye internal panel-mount surge protective device for I-Line panelboards. Features 3 poles, 4 wires plus ground, L-G protection, 150 V AC rating, and dry contacts for remote monitoring. Protects electrical equipment from voltage surges and transients in commercial and industrial facilities
SQUARE
Three-phase, 120/208V AC Wye internal panel-mount surge protective device for I-Line panelboards. Features 3 poles, 4 wires plus ground, L-G protection, 150 V AC rating, and dry contacts for remote monitoring. Protects electrical equipment from voltage surges and transients in commercial and industrial facilities

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