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SQUARE D Surge Protection Device: Single Phase, 120/240V AC, 2 Poles, 3 Wires - 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: Single Phase, 120/240V AC, 2 Poles, 3 Wires

The SQUARE D QO2175SB is a single-phase surge protection device (SPD) for internal panel-mounting in QO load centers, rated 120/240V AC, 3 wires, L-N configuration, with a maximum continuous operating voltage of 150…

SKU 3G-OTH-127821

Brand
SQUARE
Item
D Surge Protection Device: Single Phase, 120/240V AC, 2 Poles, 3 Wires
Category
Square D QO, HOM, I-Line and NQ Internal Panel-Mount SPDs
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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
QO2175SB
Type
L-L/L-N
AC
120/240V
Poles
2
Wires
3

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

Product Description

The SQUARE D QO2175SB is a single-phase surge protection device (SPD) for internal panel-mounting in QO load centers, rated 120/240V AC, 3 wires, L-N configuration, with a maximum continuous operating voltage of 150 V AC and a surge current capacity of 22kA (L-N). This plastic-housed unit is designed for use with Square D QO, HOM, I-Line, and NQ panels.

Frequently Asked Questions

What is the SQUARE D QO2175SB surge protection device used for?

The SQUARE D QO2175SB is a single-phase surge protection device (SPD) designed for internal panel-mounting in Square D QO, HOM, I-Line, and NQ load centers. It protects electrical systems from voltage spikes and transient surges in residential and commercial applications.

What are the specifications of the SQUARE D QO2175SB?

The SQUARE D QO2175SB is rated 120/240V AC, 3 wires, L-N configuration, with a maximum continuous operating voltage of 150 V AC. It has a surge current capacity of 22kA (L-N) and a voltage protection rating of 700V (L-N). The housing is plastic, and it is designed for Square D QO load centers.

Where to buy the SQUARE D QO2175SB worldwide?

You can source the SQUARE D QO2175SB 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.

How to install the SQUARE D QO2175SB surge protector?

Install the SQUARE D QO2175SB by mounting it inside a compatible Square D QO, HOM, I-Line, or NQ panel. Ensure power is off, connect the L-N wires per the panel wiring diagram, and secure the plastic housing. Follow local electrical codes and the manufacturer's instructions for safe installation.

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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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)
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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 Miniature Circuit Breaker: 175 A, 120/240V AC, Single Phase, 22kA at 120/240V AC, 2 Poles (MPN QO2175VH)
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SQUARE D Miniature Circuit Breaker: 175 A, 120/240V AC, Single Phase, 22kA at 120/240V AC, 2 Poles (MPN QO2175VH)
SQUARE D Miniature Circuit Breaker: 70 A, 120/240V AC, Three Phase, 22kA at 120/240V AC, 3 Poles (MPN QO370VH)
SQUARE D
SQUARE D Miniature Circuit Breaker: 70 A, 120/240V AC, Three Phase, 22kA at 120/240V AC, 3 Poles (MPN QO370VH)
SQUARE D Miniature Circuit Breaker: 20 A, 120/240V AC, Single Phase, 10kA at 120/240V AC, 2 Poles (MPN QO220PL)
SQUARE D
SQUARE D Miniature Circuit Breaker: 20 A, 120/240V AC, Single Phase, 10kA at 120/240V AC, 2 Poles (MPN QO220PL)

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