Features: Sealed from Dirt and Contamination Two (2) Switching Circuits: 1 Normally Open + 1 Normally Closed (DPST: Double-Pole-Single-Throw) Stackable Contacts: Each switch ships with 2 contacts/circuits. Contact Rating: 660V/10A, DC and AC Color: As Picture Number of Terminals: 4 Easy Mounting (See Illustration Below) Panel Cutout Diameter: 7/8" (22mm) Switch Action: Momentary (Springs Back)