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GENERAC Auxiliary Transfer Switch Contact: Mfr Part # 5621 - Generator Accessories
GENERACGenerator Accessories

GENERAC Auxiliary Transfer Switch Contact: Mfr Part # 5621

The GENERAC Auxiliary Transfer Switch Contact Kit (Mfr Part # 5621) is a generator accessory designed for use with Prewired and NEMA 3R Rated Automatic Transfer Switches Up To 200 Amps. This kit provides auxiliary…

SKU 3G-OTH-370375

Brand
GENERAC
Item
Auxiliary Transfer Switch Contact: Mfr Part # 5621
Category
Generator Accessories
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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

GENERAC
Manufacturer Part Number
5621
Product Type
Auxiliary Transfer Switch Contact Kit
Compatible with Series
Prewired and NEMA 3R Rated Automatic Transfer Switches Up To 200 Amps

Technical Documents

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

Product Description

The GENERAC Auxiliary Transfer Switch Contact Kit (Mfr Part # 5621) is a generator accessory designed for use with Prewired and NEMA 3R Rated Automatic Transfer Switches Up To 200 Amps. This kit provides auxiliary contacts for monitoring transfer switch status.

Frequently Asked Questions

What is the GENERAC Auxiliary Transfer Switch Contact Kit used for?

The GENERAC Auxiliary Transfer Switch Contact Kit (Mfr Part # 5621) provides auxiliary contacts for monitoring the status of Prewired and NEMA 3R Rated Automatic Transfer Switches up to 200 Amps. It is used in generator systems to signal when the transfer switch has operated, enabling remote indication or control.

What are the specifications of the GENERAC 5621 auxiliary contact kit?

The GENERAC 5621 is an Auxiliary Transfer Switch Contact Kit. It is compatible with Prewired and NEMA 3R Rated Automatic Transfer Switches up to 200 Amps. The manufacturer part number is 5621, and it is a generator accessory from GENERAC.

Where to buy the GENERAC 5621 auxiliary contact kit worldwide?

You can source the GENERAC 5621 auxiliary contact kit through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time.

How to install the GENERAC 5621 auxiliary transfer switch contact kit?

Install the GENERAC 5621 kit by first disconnecting power to the transfer switch. Mount the auxiliary contacts per the GENERAC manual, then wire them to your monitoring system. Always follow local electrical codes and use a qualified electrician for installation.

Used in

Common applications for GENERAC
Backup power for commercial buildings — Generac automatic transfer switches (e.g., RTSN600G3) for seamless grid-to-generator transition
Portable power for construction sites — Generac conventional gasoline generator (MPN 7680) for temporary electrical supply
Cold-climate generator operation — Generac extreme cold weather kit (MPN 5618) for engine block heating in low temperatures
Generator battery maintenance in winter — Generac battery warmer (MPN 5633) to ensure reliable starting in cold environments
Generator connection to transfer switch — Generac power cord (MPN 6330) for linking portable generator to inlet box and transfer switch
Cosmetic maintenance of standby generators — Generac touch-up paint kit (MPN 5703) for air-cooled series generator enclosures

GENERAC Products

3G Electric supplies GENERAC generator accessories. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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