Kohler RXT 400A Automatic Transfer Switch — RXT-JFNC-0400A-QS4
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At a glance
- Brand
- Kohler
- Model
- QS4
- Shipping
- Low cost ground shipping — calculated at checkout
Not sure if this fits?
Everything you need to know
The KOHLER RXT 400-amp automatic transfer switch is the brain of your standby system — it continuously monitors utility power and, the instant it fails, transfers your home to generator power automatically (then back again when the grid returns). Rated for 400A, single-phase, in a weatherproof NEMA aluminum enclosure for indoor or outdoor mounting.
- Rating: 400A, 120/240V single-phase
- Type: Kohler RXT automatic transfer switch
- Enclosure: Aluminum, NEMA outdoor-rated
- Compatible with Kohler RCA / RCL home standby generators
Not sure which switch you need? Request a quote and we'll match it to your generator and panel.
Frequently asked questions
Is this a genuine OEM part?+
Yes — sold and shipped as a genuine Kohler part from a factory-authorized dealer.
Will it fit my unit?+
Check your model and year — message us with that info and we'll confirm fit before you order.
How fast does it ship?+
Low cost ground shipping — calculated at checkout (batteries, transfer switches and oversized items). Most leave the warehouse in 2–4 business days.
What's the return policy?+
30-day returns on unused parts and accessories in original packaging.
Fast nationwide shipping
Low cost ground shipping — calculated at checkout. Typically ships in less than 2 weeks.
Install help, no upsell
We size, spec, and connect you with a vetted local installer — or talk your contractor through it for free.
Genuine Kohler part
Sold and shipped as a genuine Kohler OEM part from a factory-authorized dealer. 30-day returns on unused parts in original packaging.