This heavy duty DPST relay will do the power switching for vacuum pumps up to 1 HP at 120v AC and 3 HP at 240v AC. This relay is used in conjunction with our vacuum controller for vacuum pumps that draw more than 10 amps at start up. 

We offer this item for our customers who are building the original version of the Project: EVS vacuum press system. Wiring instructions for this relay can be found on the original Project: EVS instructions. It is the customer's responsibility to safely insulate the exposed terminals on this relay prior to use.

There are two models from which to choose. The Type A model is expensive, but can handle pumps drawing up to 30 amps at start up. The Type B model is half the price of the other model, and can handle up to 25 amps at start up. Also, the Type B model has a clear protective cover over the terminals.

Notes from Joe

• If you need this relay, it is very likely that you will also need the vacuum damper for the vacuum controller.
• This relay is not for use with rotary vane pumps.
• This relay is not required for the Project: EVS-2 vacuum press kit.