We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
SQUARE D Auxiliary Contact, 1NO/2NC, for Motor Logic Overload Relays - Square D Auxiliary Contacts
SQUARE DSquare D Auxiliary Contacts

SQUARE D Auxiliary Contact, 1NO/2NC, for Motor Logic Overload Relays

The SQUARE D Auxiliary Contact (MPN 9999AC04) is a 1NO/2NC contact block designed for use with Motor Logic™ Overload Relays. This auxiliary contact provides additional switching capacity for monitoring and control…

SKU 3G-OTH-37890

Brand
SQUARE D
Item
Auxiliary Contact, 1NO/2NC, for Motor Logic Overload Relays
Part Number
9999AC04
Category
Square D Auxiliary Contacts
Available to Order
Also known as:9999AC04SQUARE 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.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
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 D
Manufacturer Part Number
9999AC04
Compatible with Series
Motor Logic™ Overload Relays

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 Auxiliary Contact (MPN 9999AC04) is a 1NO/2NC contact block designed for use with Motor Logic™ Overload Relays. This auxiliary contact provides additional switching capacity for monitoring and control applications within industrial equipment.

Frequently Asked Questions

What is the SQUARE D 9999AC04 auxiliary contact used for?

The SQUARE D 9999AC04 auxiliary contact block provides additional switching capacity for monitoring and control applications. It is designed for use with Motor Logic™ Overload Relays in industrial equipment, enabling status feedback or interlocking circuits.

What are the specifications of the SQUARE D 9999AC04 auxiliary contact?

The SQUARE D 9999AC04 is a 1NO/2NC contact block. It is compatible with the Motor Logic™ Overload Relays series. The manufacturer part number is 9999AC04. This auxiliary contact is used for additional switching in industrial control circuits.

Where to buy the SQUARE D 9999AC04 auxiliary contact worldwide?

3G Electric supplies the SQUARE D 9999AC04 auxiliary contact worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the SQUARE D 9999AC04 auxiliary contact?

Install the SQUARE D 9999AC04 auxiliary contact by mounting it onto the compatible Motor Logic™ Overload Relay. Ensure power is off, then snap the contact block into place and wire according to the circuit diagram. Follow standard industrial safety practices.

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 auxiliary contacts. 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