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SQUARE D Auxiliary Contact: 1NO - Square D Auxiliary Contacts
SQUARE DSquare D Auxiliary Contacts

SQUARE D Auxiliary Contact: 1NO

The SQUARE D Auxiliary Contact (MPN 9999SX6) is a 1NO configuration auxiliary contact with a maximum current rating of 10 A (AC). Designed with a J1 frame size, this component is compatible with the 8903S Lighting…

SKU 3G-OTH-38073

Brand
SQUARE D
Item
Auxiliary Contact: 1NO
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
9999SX6
Frame Size
J1
Compatible with Series
8903S Lighting Contactors

Technical Documents

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

Product Description

The SQUARE D Auxiliary Contact (MPN 9999SX6) is a 1NO configuration auxiliary contact with a maximum current rating of 10 A (AC). Designed with a J1 frame size, this component is compatible with the 8903S Lighting Contactors series from SQUARE D.

Frequently Asked Questions

What is the SQUARE D 9999SX6 auxiliary contact used for?

The SQUARE D 9999SX6 auxiliary contact is used to provide a normally open (1NO) switching signal in industrial lighting control systems. It is designed for use with SQUARE D 8903S Lighting Contactors, enabling remote status indication or interlocking in commercial and industrial lighting applications.

What are the specifications of the SQUARE D 9999SX6 auxiliary contact?

The SQUARE D 9999SX6 auxiliary contact has a 1NO configuration with a maximum current rating of 10 A (AC). It features a J1 frame size and is compatible with the SQUARE D 8903S Lighting Contactors series. The manufacturer part number is 9999SX6.

Where to buy the SQUARE D 9999SX6 auxiliary contact worldwide?

You can source the SQUARE D 9999SX6 auxiliary contact 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 on this SQUARE D component.

How to install the SQUARE D 9999SX6 auxiliary contact?

To install the SQUARE D 9999SX6 auxiliary contact, first ensure the 8903S Lighting Contactor is de-energized. Mount the contact onto the J1 frame using the manufacturer's recommended hardware. Wire the normally open circuit per your control schematic, verifying the 10 A AC rating is not exceeded. Always follow SQUARE D installation guidelines.

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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