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SQUARE D Auxiliary Contact: 1NO, 5 A Max Current (AC) - Square D Auxiliary Contacts
SQUARE DSquare D Auxiliary Contacts

SQUARE D Auxiliary Contact: 1NO, 5 A Max Current (AC)

The SQUARE D Auxiliary Contact, model 9999SX11, is a 1NO auxiliary contact with a maximum current rating of 5 A (AC). It is compatible with Type M Integral Horsepower Starters from SQUARE D.

SKU 3G-OTH-37975

Brand
SQUARE D
Item
Auxiliary Contact: 1NO, 5 A Max Current
Category
Square D Auxiliary Contacts
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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 D
Manufacturer Part Number
9999SX11
Compatible with Series
Type M Integral Horsepower Starters

Technical Documents

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

Product Description

The SQUARE D Auxiliary Contact, model 9999SX11, is a 1NO auxiliary contact with a maximum current rating of 5 A (AC). It is compatible with Type M Integral Horsepower Starters from SQUARE D.

Frequently Asked Questions

What is the SQUARE D 9999SX11 auxiliary contact used for?

The SQUARE D 9999SX11 auxiliary contact is used to provide a normally open (1NO) switching function in motor control circuits. It is designed for use with Type M Integral Horsepower Starters to signal status or interlock other devices in industrial automation and HVAC applications.

What are the specifications of the SQUARE D 9999SX11 auxiliary contact?

The SQUARE D 9999SX11 is a 1NO auxiliary contact with a maximum current rating of 5 A (AC). It is compatible with SQUARE D Type M Integral Horsepower Starters. The manufacturer part number is 9999SX11. It is a standard component for adding auxiliary switching to motor starters.

Where to buy SQUARE D 9999SX11 auxiliary contacts worldwide?

3G Electric supplies the SQUARE D 9999SX11 auxiliary contact worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. We source genuine SQUARE D components for motor control applications.

How to install the SQUARE D 9999SX11 auxiliary contact?

To install the SQUARE D 9999SX11, first disconnect power to the motor starter. Mount the auxiliary contact onto the Type M Integral Horsepower Starter per the manufacturer's instructions. Wire the normally open (1NO) terminals to your control circuit. Verify operation before re-energizing the system.

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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