EXW Singapore — collect or forward from our Singapore office.

3G Electric
SQUARE D SN12125 Neutral Assembly Insulated Groundable, 125 A, 3-Pole - Square D Circuit Breaker Ancillary Accessories
SQUARE DSquare D Circuit Breaker Ancillary Accessories

SQUARE D SN12125 Neutral Assembly Insulated Groundable, 125 A, 3-Pole

The SQUARE D Neutral Assembly Insulated Groundable (SKU SN12125, MPN SN12125) is a 3-pole, 125 A circuit breaker ancillary accessory designed for use with QOU Circuit Breakers. This neutral assembly provides an…

SKU 3G-OTH-21901

Also listed as: SN 12125 · SN-12125

Brand
SQUARE D
Item
SN12125 Neutral Assembly Insulated Groundable, 125 A, 3-Pole
Part Number
SN12125
Category
Square D Circuit Breaker Ancillary Accessories
Available to Order
Also known as:SN12125SQUARE D
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.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

SQUARE D
Manufacturer Part Number
SN12125
Type
Insulated Groundable
Amps
125 A
For Use With
QOU Circuit Breaker
Accessory Type
Neutral Assembly Insulated Groundable
Number of Poles
3

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

Product Description

The SQUARE D Neutral Assembly Insulated Groundable (SKU SN12125, MPN SN12125) is a 3-pole, 125 A circuit breaker ancillary accessory designed for use with QOU Circuit Breakers. This neutral assembly provides an insulated groundable connection point within the electrical distribution system.

Frequently Asked Questions

What is the SQUARE D Neutral Assembly Insulated Groundable used for?

The SQUARE D Neutral Assembly Insulated Groundable provides an insulated groundable connection point in electrical distribution systems. It is used as an ancillary accessory with QOU Circuit Breakers to manage neutral conductors safely in commercial and industrial panels.

What are the specifications of the SQUARE D SN12125 neutral assembly?

The SQUARE D SN12125 is a 3-pole, 125 A neutral assembly insulated groundable accessory. It is designed for use with QOU Circuit Breakers. The brand is SQUARE D, and the accessory type is Neutral Assembly Insulated Groundable.

Where to buy the SQUARE D SN12125 neutral assembly worldwide?

3G Electric supplies the SQUARE D SN12125 neutral assembly worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us to source this accessory for your QOU breaker application.

How to install the SQUARE D insulated groundable neutral assembly?

Install the SQUARE D neutral assembly by mounting it securely in the panel enclosure per the manufacturer's instructions. Connect the neutral conductor to the insulated groundable terminal and verify proper grounding. Always follow local electrical codes and use qualified personnel for installation.

Used in

Common applications for SQUARE D
Commercial electrical panels — QO and QOB miniature circuit breakers for overcurrent protection in load centers and panelboards.
HVACR equipment — 8910 Series Type DPA definite purpose contactors for switching compressor and fan motor loads.
Industrial power distribution — J-Frame molded case circuit breakers for main and feeder protection in switchboards.
Residential ground-fault protection — QO and QOB GFI circuit breakers for kitchens, bathrooms, and outdoor circuits.
Motor control centers — definite purpose contactors for controlling pumps, fans, and other moderate motor loads.
OEM machinery — Square D circuit breakers and contactors for integration into control panels and equipment.
Not sure this is the right part? Photo-identify it→

SQUARE D Products

3G Electric supplies SQUARE D square d circuit breaker ancillary accessories. 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 →

More from SQUARE D

View all SQUARE D parts →

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first