They typically handle motor loads and feature double-break, silveralloy contacts enclosed in rigid thermoset plastic housings. Preconfigured application-specific models include voltmeter transfer switches, ammeter transfer switches, motor starting switches, motor reversing switches, and heater-control switching. Switching action is controlled by the shape of the cams, allowing nearly infinite combinations using standard parts. Most models come with base, door, waterproof, single-hole, two-hole, or four-hole mount. Other options include key interlock, key operation, spring return, gear-driven operation, and padlock compatibility.

Electroswitch,
180 King Ave., Weymouth, MA 02188,
(781) 335-5200, www.electroswitch.com