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SQUARE D Surge Protection Device: Three Phase, 277/480V AC Wye, 3 Poles - 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 Surge Protection Device: Three Phase, 277/480V AC Wye, 3 Poles

The SQUARE D Surge Protection Device (MPN HL4IMA24C) 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-127863

Brand
SQUARE
Item
D Surge Protection Device: Three Phase, 277/480V AC Wye, 3 Poles
Category
Square D QO, HOM, I-Line and NQ Internal Panel-Mount SPDs
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SQUARE
Manufacturer Part Number
HL4IMA24C
Type
4 + Ground Wires
AC
320 V
Poles
3
AC Wye
277/480V

Technical Documents

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

Product Description

The SQUARE D Surge Protection Device (MPN HL4IMA24C) 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. The 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 HL4IMA24C surge protection device used for?

The SQUARE D HL4IMA24C 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 voltage transients and surges in commercial and industrial power distribution systems, with a 200kA surge current rating and dry contacts for remote monitoring.

What are the specifications of the SQUARE D HL4IMA24C?

The SQUARE D HL4IMA24C SPD has a 277/480V AC Wye configuration, 3 poles, 4 wires plus ground, N-G wiring, 320 V AC MCOV, 2000V (L-L) protection level, and 200kA surge current rating. It includes dry contacts and is designed for I-Line Panelboards. The unit is part of the Square D QO, HOM, I-Line and NQ series.

Where to buy the SQUARE D HL4IMA24C worldwide?

3G Electric supplies the SQUARE D HL4IMA24C surge protection device worldwide. As a global industrial equipment distributor established in 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this Square D SPD to any international destination.

How to install the SQUARE D HL4IMA24C SPD?

Install the SQUARE D HL4IMA24C SPD inside a compatible I-Line Panelboard by mounting it on the panel interior and connecting the 4 wires plus ground per the N-G configuration. Ensure the system is de-energized before installation. Follow the manufacturer's wiring diagram and local electrical codes. Use dry contacts for remote alarm monitoring.

Used in

Common applications for SQUARE
Industrial power distribution — Square D HU362AWC non-fusible safety switch for disconnecting three-phase loads up to 60 A.
Busway branch circuits — Square D PQ4203G fusible bus plug for overcurrent protection in I-Line busway systems.
Panelboard surge protection — Square D HL4IMA24C SPD for transient voltage suppression in 277/480V AC wye systems.
Power distribution in control panels — Square D 9080LBA263106 open distribution block for splitting 400 kcmil conductors.
Machine control stations — Square D 9001BG303 push-button station for open/close/stop operations in industrial machinery.
Motor starting and protection — Square D 8536SBG2V02H30S NEMA starter for non-reversing three-phase motor control up to 18 A.

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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