We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

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: Three Phase (MPN HL4IMA16C) is a Square D QO, HOM, I-Line and NQ Internal Panel-Mount SPD designed for I-Line Panelboards. It operates on a 277/480V AC Wye system with 4 wires…

SKU 3G-OTH-127860

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
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

SQUARE
Manufacturer Part Number
HL4IMA16C
Type
4 + Ground Wires
AC
320 V
Poles
3
AC Wye
277/480V

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The SQUARE D Surge Protection Device: Three Phase (MPN HL4IMA16C) is a Square D QO, HOM, I-Line and NQ Internal Panel-Mount SPD designed for I-Line Panelboards. It operates on a 277/480V AC Wye system with 4 wires plus ground, L-L configuration, and a 320 V AC voltage rating. Key specifications include a 1500V (L-N) protection level, 200kA surge current capacity, and dry contacts for remote monitoring.

Frequently Asked Questions

What is the SQUARE D HL4IMA16C surge protection device used for?

The SQUARE D HL4IMA16C is a three-phase surge protection device (SPD) used to protect electrical equipment in I-Line panelboards from voltage transients and surges. It is designed for 277/480V AC Wye systems with 4 wires plus ground, providing 200kA surge current capacity and dry contacts for remote monitoring.

What are the specifications of the SQUARE D HL4IMA16C?

The SQUARE D HL4IMA16C is a 3-pole SPD rated for 277/480V AC Wye, 320 V AC, with a 1500V (L-N) protection level and 200kA surge current capacity. It includes 4 wires plus ground, L-L configuration, and dry contacts. It is designed for I-Line panelboards and is manufactured by SQUARE D.

Where to buy the SQUARE D HL4IMA16C worldwide?

3G Electric supplies the SQUARE D HL4IMA16C surge protection device to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this SQUARE D SPD.

How to install the SQUARE D HL4IMA16C surge protection device?

Install the SQUARE D HL4IMA16C in an I-Line panelboard following the manufacturer's instructions. Ensure the system is de-energized, connect the 4 wires plus ground to the correct terminals (L-L configuration), and verify the 277/480V AC Wye supply. Use dry contacts for remote monitoring. Consult a qualified electrician.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
SQUARE D Surge Protection Device: Single Phase, 120/240V AC, 1000V (L-L, N-G)/600V (L-N)/700V (L-G) (MPN HEPD80)
SQUARE
SQUARE D Surge Protection Device: Single Phase, 120/240V AC, 1000V (L-L, N-G)/600V (L-N)/700V (L-G) (MPN HEPD80)
SQUARE D Surge Protection Device: Three Phase, 347/600V AC Wye, 1800V (L-N)/3000V (L-L), 510 V AC (MPN SDSA3650)
SQUARE D
SQUARE D Surge Protection Device: Three Phase, 347/600V AC Wye, 1800V (L-N)/3000V (L-L), 510 V AC (MPN SDSA3650)
SQUARE D Surge Protection Device: Three Phase, 600V AC Delta, 3000V (L-L), 1020 V AC, Plastic, 4X (MPN SDSA3650D)
SQUARE D
SQUARE D Surge Protection Device: Three Phase, 600V AC Delta, 3000V (L-L), 1020 V AC, Plastic, 4X (MPN SDSA3650D)
SQUARE D Surge Protection Device: Single Phase, 120V AC, 2 Poles, 3 Wires, L-N, 150 V(L-N) (MPN HFNF120IESE005)
SQUARE D
SQUARE D Surge Protection Device: Single Phase, 120V AC, 2 Poles, 3 Wires, L-N, 150 V(L-N) (MPN HFNF120IESE005)

More from SQUARE

View all SQUARE parts
SQUARE D Surge Protection Device: Three Phase, 120/208V AC Wye, 3 Poles, 4 + Ground Wires, 150 V AC (MPN HL2IMA16C)
SQUARE
SQUARE D Surge Protection Device: Three Phase, 120/208V AC Wye, 3 Poles, 4 + Ground Wires, 150 V AC (MPN HL2IMA16C)
SQUARE D Surge Protection Device: Three Phase, 120/240V AC High Leg Delta, 3 Poles, 4 + Ground Wires (MPN HL3IMA24C)
SQUARE
SQUARE D Surge Protection Device: Three Phase, 120/240V AC High Leg Delta, 3 Poles, 4 + Ground Wires (MPN HL3IMA24C)
SQUARE D Surge Protection Device: Three Phase, 120/208V AC Wye, 3 Poles, 4 + Ground Wires, 150 V AC (MPN HL2IMA24C)
SQUARE
SQUARE D Surge Protection Device: Three Phase, 120/208V AC Wye, 3 Poles, 4 + Ground Wires, 150 V AC (MPN HL2IMA24C)
SQUARE D Surge Protection Device: Three Phase, 277/480V AC Wye, 3 Poles, 4 + Ground Wires, 320 V AC (MPN HL4IMA12C)
SQUARE
SQUARE D Surge Protection Device: Three Phase, 277/480V AC Wye, 3 Poles, 4 + Ground Wires, 320 V AC (MPN HL4IMA12C)
SQUARE D Surge Protection Device: Three Phase, 120/208V AC Wye, 3 Poles, 4 + Ground Wires, 150 V AC (MPN HL2IMA12C)
SQUARE
SQUARE D Surge Protection Device: Three Phase, 120/208V AC Wye, 3 Poles, 4 + Ground Wires, 150 V AC (MPN HL2IMA12C)
SQUARE D Surge Protection Device: Single Phase, 120/240V AC, 2 Poles, 3 Wires, L-L/L-N, 150 V AC (MPN HOM2175SB)
SQUARE
SQUARE D Surge Protection Device: Single Phase, 120/240V AC, 2 Poles, 3 Wires, L-L/L-N, 150 V AC (MPN HOM2175SB)
SQUARE D Surge Protection Device: Three Phase, 277/480V AC Wye, 3 Poles, 4 + Ground Wires, 320 V AC (MPN HL4IMA24C)
SQUARE
SQUARE D Surge Protection Device: Three Phase, 277/480V AC Wye, 3 Poles, 4 + Ground Wires, 320 V AC (MPN HL4IMA24C)
SQUARE D Surge Protection Device: Single Phase, 120/240V AC, 2 Poles, 3 Wires, L-L/L-N, 150 V AC (MPN QO2175SB)
SQUARE
SQUARE D Surge Protection Device: Single Phase, 120/240V AC, 2 Poles, 3 Wires, L-L/L-N, 150 V AC (MPN QO2175SB)