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GENERAC Automatic Transfer Switch: Three Phase, 400 A Current Rating, 120/240V AC - Automatic Transfer Switches
GENERACAutomatic Transfer Switches

GENERAC Automatic Transfer Switch: Three Phase, 400 A Current Rating, 120/240V AC

The GENERAC Automatic Transfer Switch: Three Phase (SKU 3HFD7, MPN RTSN400J3) is a 400 A, 60,000 W max watt automatic transfer switch with a rated voltage of 120/240V AC. It features a steel enclosure, is not…

SKU 3G-OTH-371150

Brand
GENERAC
Item
Automatic Transfer Switch: Three Phase, 400 A Current Rating, 120/240V AC
Category
Automatic Transfer Switches
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Technical Specifications

GENERAC
Brand
GENERAC
Lockable
No
Rated Voltage
120/240V AC
Enclosure Material
Steel
Compatible with Series
RTS
Manufacturer Part Number
RTSN400J3
Service Rated Transfer Switch
No
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GENERAC Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GENERAC Automatic Transfer Switch: Three Phase (SKU 3HFD7, MPN RTSN400J3) is a 400 A, 60,000 W max watt automatic transfer switch with a rated voltage of 120/240V AC. It features a steel enclosure, is not lockable, and is compatible with the RTS series. This unit is not service rated.

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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GENERAC Automatic Transfer Switch: Three Phase, 400 A Current Rating, 120/208V AC, 60,000 W Max Watt (MPN RTSN400G3). Key specifications — Enclosure Material: Steel; Lockable: No; Rated Voltage: 120/208V AC; Brand: GENERAC; Compatible with Series: RTS; Service Rated Transfer Switch: No.
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GENERAC Automatic Transfer Switch: Single Phase, 800 A Current Rating, 120/240V AC, Steel, 3R, RTS (MPN RTSC800A3). Key specifications — Enclosure Material: Steel; Lockable: Yes; Rated Voltage: 120/240V AC; Brand: GENERAC; Compatible with Series: RTS; Service Rated Transfer Switch: No.
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GENERAC Automatic Transfer Switch: Three Phase, 600 A Current Rating, 120/240V AC, Steel, 3R, RTS (MPN RTSN600J3). Key specifications — Enclosure Material: Steel; Lockable: Yes; Rated Voltage: 120/240V AC; Brand: GENERAC; Compatible with Series: RTS; Service Rated Transfer Switch: No.
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GENERAC Automatic Transfer Switch: Three Phase, 200 A Current Rating, 277/480V AC, 45,000 W Max Watt (MPN RTSN200K3). Key specifications — Enclosure Material: Steel; Lockable: No; Rated Voltage: 277/480V AC; Brand: GENERAC; Compatible with Series: RTS; Service Rated Transfer Switch: No.
GENERAC Automatic Transfer Switch: Three Phase, 100 A Current Rating, 120/208V AC, 20,000 W Max Watt (MPN RTSN100G3). Key specifications — Enclosure Material: Steel; Lockable: No; Rated Voltage: 120/208V AC; Brand: GENERAC; Compatible with Series: RTS; Service Rated Transfer Switch: No.
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GENERAC Automatic Transfer Switch: Three Phase, 100 A Current Rating, 120/208V AC, 20,000 W Max Watt (MPN RTSN100G3). Key specifications — Enclosure Material: Steel; Lockable: No; Rated Voltage: 120/208V AC; Brand: GENERAC; Compatible with Series: RTS; Service Rated Transfer Switch: No.
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GENERAC Automatic Transfer Switch: Three Phase, 800 A Current Rating, 120/240V AC, Steel, 3R, RTS (MPN RTSN800J3). Key specifications — Enclosure Material: Steel; Lockable: Yes; Rated Voltage: 120/240V AC; Brand: GENERAC; Compatible with Series: RTS; Service Rated Transfer Switch: No.
GENERAC Automatic Transfer Switch: Three Phase, 100 A Current Rating, 277/480V AC, 14,000 W Max Watt (MPN RTSN100K3). Key specifications — Enclosure Material: Steel; Lockable: No; Rated Voltage: 277/480V AC; Brand: GENERAC; Compatible with Series: Evolution; Service Rated Transfer Switch: No.
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GENERAC Automatic Transfer Switch: Three Phase, 100 A Current Rating, 277/480V AC, 14,000 W Max Watt (MPN RTSN100K3). Key specifications — Enclosure Material: Steel; Lockable: No; Rated Voltage: 277/480V AC; Brand: GENERAC; Compatible with Series: Evolution; Service Rated Transfer Switch: No.
GENERAC Automatic Transfer Switch: Three Phase, 600 A Current Rating, 120/208V AC, Steel, 3R, RTS (MPN RTSN600G3). Key specifications — Enclosure Material: Steel; Lockable: Yes; Rated Voltage: 120/208V AC; Brand: GENERAC; Compatible with Series: RTS; Service Rated Transfer Switch: No.
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GENERAC Automatic Transfer Switch: Three Phase, 600 A Current Rating, 120/208V AC, Steel, 3R, RTS (MPN RTSN600G3). Key specifications — Enclosure Material: Steel; Lockable: Yes; Rated Voltage: 120/208V AC; Brand: GENERAC; Compatible with Series: RTS; Service Rated Transfer Switch: No.