Non-Automotive / Other

Generac Power Systems

400 AMP 277/480 THREEPHASE NEMA 3R CUL

$2,645.82

SKU: G00P RTSN400K3

In Stock
In Stock
Ships by Jun 10
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The Generac RTSN400K3 is a 277/480-volt, 400-amp automatic transfer switch designed for indoor and outdoor use with Generac standby generators. It ensures a seamless transition between utility power and generator power during outages.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandGenerac Power Systems
Part NumberG00P RTSN400K3

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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