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GENERAC Automatic Transfer Switch: Three Phase, 100 A Current Rating, 277/480V AC - Automatic Transfer Switches
GENERACAutomatic Transfer Switches

GENERAC Automatic Transfer Switch: Three Phase, 100 A Current Rating, 277/480V AC

The GENERAC Automatic Transfer Switch: Three Phase (MPN RTSN100K3) is a 100 A, 277/480V AC automatic transfer switch with a 14,000 W max watt rating. It features a steel enclosure, is not lockable, and is compatible…

SKU 3G-OTH-371143

Brand
GENERAC
Item
Automatic Transfer Switch: Three Phase, 100 A Current Rating, 277/480V AC
Category
Automatic Transfer Switches
Available to Order
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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
RTSN100K3
AC
277/480V
Lockable
No
Max Watt
14,000 W
Rated Voltage
277/480V AC
Current Rating
100 A
Enclosure Material
Steel
Compatible with Series
Evolution
Service Rated Transfer Switch
No

Technical Documents

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

Product Description

The GENERAC Automatic Transfer Switch: Three Phase (MPN RTSN100K3) is a 100 A, 277/480V AC automatic transfer switch with a 14,000 W max watt rating. It features a steel enclosure, is not lockable, and is compatible with the Evolution series. This unit is not service rated.

Frequently Asked Questions

What is the GENERAC RTSN100K3 automatic transfer switch used for?

The GENERAC RTSN100K3 automatic transfer switch automatically transfers electrical loads between a primary power source and a backup generator during an outage. It is used in commercial and industrial three-phase applications requiring 100 A at 277/480V AC, ensuring uninterrupted power for critical equipment.

What are the specifications of the GENERAC RTSN100K3 transfer switch?

The GENERAC RTSN100K3 is a three-phase automatic transfer switch rated at 100 A and 277/480V AC, with a maximum wattage of 14,000 W. It features a steel enclosure, is not lockable, and is compatible with the Evolution series. This unit is not service rated.

Where to buy the GENERAC RTSN100K3 transfer switch worldwide?

You can source the GENERAC RTSN100K3 automatic transfer switch through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact 3G Electric for availability and lead time on this GENERAC part.

How to install the GENERAC RTSN100K3 automatic transfer switch?

Installation of the GENERAC RTSN100K3 should be performed by a qualified electrician following local electrical codes and the manufacturer's manual. Ensure the unit is mounted on a stable surface, all connections are torqued to spec, and the generator and utility inputs are properly phased before testing automatic transfer.

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 automatic transfer switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Cross-referenced by specification & description
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GENERAC Automatic Transfer Switch: Three Phase, 200 A Current Rating, 120/208V AC, 45,000 W Max Watt (MPN RTSN200G3)
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GENERAC Automatic Transfer Switch: Three Phase, 200 A Current Rating, 120/240V AC, 45,000 W Max Watt (MPN RTSN200J3)

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