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GENERAC Automatic Transfer Switch: Three Phase, 100 A Current Rating, 120/240V AC - Automatic Transfer Switches
GENERACAutomatic Transfer Switches

GENERAC Automatic Transfer Switch: Three Phase, 100 A Current Rating, 120/240V AC

The GENERAC Automatic Transfer Switch: Three Phase is a 100 A, 120/240V AC automatic transfer switch with a 20,000 W max watt rating (MPN RTSN100J3). It features a steel enclosure, is not lockable, and is compatible…

SKU 3G-OTH-371141

Brand
GENERAC
Item
Automatic Transfer Switch: Three Phase, 100 A Current Rating, 120/240V AC
Category
Automatic Transfer Switches
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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
RTSN100J3
AC
120/240V
Lockable
No
Max Watt
20,000 W
Rated Voltage
120/240V AC
Current Rating
100 A
Enclosure Material
Steel
Compatible with Series
RTS
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 is a 100 A, 120/240V AC automatic transfer switch with a 20,000 W max watt rating (MPN RTSN100J3). It features a steel enclosure, is not lockable, and is compatible with the RTS series. This unit is not a service rated transfer switch.

Frequently Asked Questions

What is the GENERAC Automatic Transfer Switch RTSN100J3 used for?

The GENERAC Automatic Transfer Switch RTSN100J3 automatically transfers electrical loads from a primary power source to a backup generator during an outage. It is designed for three-phase, 100 A, 120/240V AC applications with a 20,000 W max watt rating, commonly used in commercial and industrial facilities.

What are the specifications of the GENERAC RTSN100J3 transfer switch?

The GENERAC RTSN100J3 is a three-phase automatic transfer switch rated at 100 A and 120/240V AC, with a 20,000 W max watt rating. It features a steel enclosure, is not lockable, and is compatible with the RTS series. This unit is not a service rated transfer switch.

Where to buy the GENERAC RTSN100J3 transfer switch worldwide?

You can source the GENERAC RTSN100J3 transfer switch 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 on this item.

How to install the GENERAC RTSN100J3 automatic transfer switch?

Installation of the GENERAC RTSN100J3 should be performed by a licensed electrician following local codes and the manufacturer's manual. Ensure the steel enclosure is securely mounted, all connections are torqued to spec, and the unit is properly grounded. Always disconnect both power sources before servicing.

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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SCHNEIDER Safety Switch: Fusible, 100 A, Three Phase, 240V AC, Galvanized Steel, Indoor/Outdoor (MPN VH323NRB)
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