Westinghouse Outdoor Power Equipment ST Switch with Smart Portable Automatic Transfer Technology Home Standby Alternative, For Sump Pumps, Refrigerators, and More, Black and White

Economical autostart generator solution…
This is a great option if your Westinghouse generator is relied upon to produce immediate standby power at an unattended location during a power failure. The wattage rating on the ST switch is lower than the capacity of most Westinghouse generators and it will only power 120 volt equipment, but this really doesn’t matter. The main thing it does is detect loss of mains voltage to automatically start the generator and supply power to the essential items connected. For most, it will be a refrigerator or freezer at a remote cabin, though we use it at a radio station to keep emergency power on the microwave link used to send audio from studio to remote transmitter. Should you need to supply emergency 220 volt or high wattage equipment, you could use this box to power a relay that would transfer such gear’s power cord from mains to the dedicated outlets on the generator. As far as I know, there are no autostart generator products in this price range…seems a good value for the money!

Automatically starts your Westinghouse generator.
A must have option for Westinghouse generators that have the ST Switch option. When the power goes out in your home, this signals the generator to automatically start up and supplies AC power to the outlet. I use it for our sump pump. You can use it for a frig or freezer. If you’re not home, it powers up automatically protecting your important item.Westinghouse generators are the only ones that have this option.

PLEASE READ! (if you want your switch to work)
The switch works great – when it works! I am removing one star, however, for the amount of effort it took me to get it working. Please read this review, if you want your purchased ST switch to actually work with a Westinghouse generator.Here is the story. Like in many other negative reviews below (and, hopefully, not above), I found my new ST smart switch NOT working with my new (purchased in Nov 2024) WGen 9500 DF generator. It would not start the generator, when utility power is disconnected. However it would stop it, when the utility power is restored (IMPORTANT NOTE: the switch shuts down the generator with a built-in 45-60 sec cooldown delay, so be patient when waiting for the switch to shut down the generator!).So, with this problem description (i.e. “no generator autostart, but normal generator auto-shutdown”) I opened the case with the Westinghouse support. They were very accommodating, and immediately offered to send me the replacement “control module” (a little black box appr. 3″ x 2″ x 0.5″ – see the picture) for the generator. For the generator – NOT for the ST switch, which appears to be OK. Turns out, there was a firmware problem in that module lately, which likely caused most of the negative reviews here (you may notice, that the reviews from a couple of years ago tend to be positive, as opposed to the more recent ones). They even suggested that I may replace the control module on the generator myself, but after a brief consideration, I figured that it would better be done by a recognized Westinghouse warranty support shop. So, I drove there with the generator and the part, they replaced it (a quick 30 min job), and after that the ST switch worked like a charm on the generator! It starts it on the utility power loss, and stops (after 45-60 sec delay) after the power is restored, just like it is supposed to do. It also charges the generator battery, while utility power is connected – all IAW the manual.So, the problem, apparently, is due to a firmware bug in the recent series of the Westinghouse generators. I am not sure, at what date it was (or will be) fixed on the new generators coming from the factory. But you can still make yours to work with the ST switch – with the help of the Westinghouse support, and warranty replacement of the generator “control module”.Hope this helps!

This thing turns itself off and won,t recognize a power failure. spend the extra money on a generac. at least it will work

Great product for emergency back up