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SQUARE D Auxiliary Contact: 1NC, 5 A Max Current (AC) - Square D Auxiliary Contacts
SQUARE DSquare D Auxiliary Contacts

SQUARE D Auxiliary Contact: 1NC, 5 A Max Current (AC)

The SQUARE D Auxiliary Contact, model 9999SX12, is a 1NC (normally closed) auxiliary contact rated for 5 A max current (AC). It is compatible with Type T Integral Horsepower Starters from SQUARE D. This component…

SKU 3G-OTH-38023

Brand
SQUARE D
Item
Auxiliary Contact: 1NC, 5 A Max Current
Category
Square D Auxiliary Contacts
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Technical Specifications

SQUARE D
Manufacturer Part Number
9999SX12
Compatible with Series
Type T Integral Horsepower Starters
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SQUARE D Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SQUARE D Auxiliary Contact, model 9999SX12, is a 1NC (normally closed) auxiliary contact rated for 5 A max current (AC). It is compatible with Type T Integral Horsepower Starters from SQUARE D. This component provides a normally closed switching function for use within compatible starter assemblies.

Frequently Asked Questions

What is the SQUARE D 9999SX12 auxiliary contact used for?

The SQUARE D 9999SX12 auxiliary contact provides a normally closed (1NC) switching function within Type T Integral Horsepower Starters. It is used in industrial motor control applications to signal status or interlock circuits, supporting reliable automation and safety in manufacturing and process environments.

What are the specifications of the SQUARE D 9999SX12?

The SQUARE D 9999SX12 is a 1NC auxiliary contact rated for 5 A max current (AC). It is compatible with SQUARE D Type T Integral Horsepower Starters. The manufacturer part number is 9999SX12. This component is designed for integration into compatible starter assemblies for motor control.

Where to buy SQUARE D 9999SX12 worldwide?

3G Electric supplies the SQUARE D 9999SX12 auxiliary contact to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this component for your motor control needs.

How to install the SQUARE D 9999SX12 auxiliary contact?

Install the SQUARE D 9999SX12 auxiliary contact into a compatible Type T Integral Horsepower Starter following the manufacturer's wiring diagram. Ensure power is off, mount the contact securely, and connect the normally closed circuit per your control scheme. Always verify ratings and follow local electrical codes.

Used in

Common applications for SQUARE D
Commercial building electrical panels — Square D QO series plug-in circuit breakers for branch circuit protection
Industrial motor control centers — Square D QOB series bolt-on breakers in NQOD panelboards
Heating equipment installations — Square D QOU series unit-mount breakers for overcurrent protection
Outdoor electrical distribution — Square D L-Frame enclosures housing LAL/LHL breakers for 400 A service
Indoor facility power distribution — Square D Q-Frame enclosures with QBL/QDL breakers for 225 A circuits
Retrofit and replacement in existing Square D load centers — QO series breakers for 120/240V AC systems

SQUARE D Products

3G Electric supplies SQUARE D square d auxiliary contacts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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