The most versatile test switch ever. They are typically used to isolate transformers, meters, or IEDs for testing.
 But the modular design of W3TS makes it useful for any application which
 calls for a rugged terminal block.

As big (or small) as you need it. Easily configured with any type and order of switch elements, with any number of poles from 1 to 50. Create the right test switch for each application without wasted space.

Built to stand the test of time. All conductive components are nickel plated, ensuring they won't oxidize or seize up over a long life span.

Keep your gloves on. Designed for safety and ease of use, our patented safety knob means you can actuate a switch with your gloves on, or with a 5/16” nut driver to open from afar.

Tallest and most secure barriers. Integrated barriers prevent any possibility of accidental short circuits.