Wattstanding
Westinghouse Outdoor Power WATS200 Automatic Transfer Switch

Product image: Westinghouse Outdoor Power

Transfer switch & panels · Westinghouse Outdoor Power

Westinghouse Outdoor Power WATS200 Automatic Transfer Switch

Westinghouse Outdoor Power · automatic transfer switch · 200 A

The short answer

The Westinghouse Outdoor Power WATS200 Automatic Transfer Switch is a automatic transfer switch rated 200 A with 22 circuits. Westinghouse Outdoor Power lists it at $999. It must be installed and used according to local electrical code; a licensed electrician decides whether it is right for your home.

Type
Automatic transfer switch
Amperage
200 A
Circuits
22
Location
enclosure type NEMA 3R — Indoor/Outdoor
Price seen
$999

Good fit if

  • You want selected circuits powered from a generator or battery without extension cords through the house
  • A licensed electrician will install it and pull the permit

Look elsewhere if

  • You plan to install it yourself without a licensed electrician
  • Your generator's outlet does not match the amperage
$999Westinghouse Outdoor Power list price (sold through retailers) · seen 30 Sep 2026
View at Westinghouse Outdoor Power

Every link opens the product page for this exact model. We may earn a commission; it never changes what we publish. Disclosure

What a automatic transfer switch does

An automatic transfer switch senses a utility outage and starts the changeover on its own, usually with a standby generator. It is a permanent installation by a licensed electrician.

Power at this amperage
VoltageMaximum watts (amps × volts)Plan for about 80% continuous
120 V24,000 W19,200 W
240 V48,000 W38,400 W
Wattstanding calculationWattstanding calculation — watts = amps × volts. Electrical practice commonly limits continuous loads to about 80% of a circuit's rating; your electrician applies the code that governs your home.
Seller or manufacturer claimCompatibility as listed: voltage 120/240 VAC

Generators in our catalog with a matching listed outlet

A matching outlet is necessary but not sufficient: the generator's watts, the inlet, the cord and the panel all have to be correct. An electrician confirms the whole chain.

Safety and installation

SafetyNever plug a generator or battery system into a wall outlet to power the house ("backfeeding"): it can send electricity back into the utility lines and injure line workers, and it can start fires. Connecting a generator to a home's wiring is a job for a licensed electrician, with the permit and inspection your local code requires. Wattstanding does not give wiring instructions.

Compare this with other equipment in the transfer switch library or use the compatibility matrix.

Fit check before you buy

This equipment connects to a home's wiring, so every check below belongs to a qualified person.

✓ Required? Check firsti Good to know
  • ✓Licensed electricianInstallation, permit and inspection are the electrician's and your local authority's job.
  • ?Matching amperageThis item is rated 200 A; the generator outlet, cord and inlet need to match.
  • ?Panel fitvoltage 120/240 VAC
  • iUtility rulesSome utilities and areas have their own rules for generator connections.

Specifications

Each figure is labelled with where it comes from. Numbered references link to the source list below.

Manufacturer storeRetailer listingWattstanding calculationNot verified

Published specifications

Typeautomatic transfer switch[S1]Manufacturer store
Amperage200 A[S1]Manufacturer store
Circuits22[S1]Manufacturer store
Voltage120/240 VAC[S1]Manufacturer store
Locationenclosure type NEMA 3R — Indoor/Outdoor[S1]Manufacturer store
Compatibility (as stated)voltage 120/240 VAC[S1]Manufacturer store
Warranty5-Year Limited Warranty[S1]Manufacturer store

Wattstanding calculations

Maximum watts at 240 V48,000 WWattstanding calculation
Maximum watts at 120 V24,000 WWattstanding calculation

Limitations to weigh

  • Specifications are the maker's or seller's; Wattstanding has not tested this product and gives no installation instructions.
  • Whether it is allowed or suitable for your home is for a licensed electrician and your local authority.
  • Prices change; confirm the price, stock and what is included before ordering.

Alternatives worth comparing

Anker SOLIX 10-Circuit Manual Transfer Switch(120V/240V (B17B31A1)50 A, 10 circuits; $139 less
BLUETTI 100A Manual Transfer Switch（for maintenance）100 A; $600 less
Jackery Smart Transfer Switch$160 more
Reliance R510A 120/240V 50 Amp 10 Circuit Pro/Tran-2 Outdoor Transfer Switch50 A, 10 circuits; $420 less

Where to buy

Our link opens this exact product page. Prices and stock change; check before you order.

$999Westinghouse Outdoor Power list price (sold through retailers) · seen 30 Sep 2026
View at Westinghouse Outdoor Power

Every link opens the product page for this exact model. We may earn a commission; it never changes what we publish. Disclosure

Questions buyers ask

Do I need an electrician to install the Westinghouse Outdoor Power WATS200 Automatic Transfer Switch?
For anything that connects to a home's wiring — yes. Use a licensed electrician and get the permit and inspection your area requires.
Where can I buy the Westinghouse Outdoor Power WATS200 Automatic Transfer Switch?
1 seller list it: Westinghouse Outdoor Power.

Sources and verification

  1. Westinghouse Outdoor Power — WATS200 Automatic Transfer Switch — product page and specifications Retrieved 30 Sep 2026

Wattstanding has not tested this product hands-on. This reference is compiled from the sources above; our calculations are labelled and show their working. Electrical work belongs to a licensed electrician. Last verified 30 Sep 2026. How we work