This Linemaster TWIN 971-SMC48 Aquiline twin foot switch is a 13 amp 125-250V, 1/2 HP dual foot switch assembly with a cast zinc housing and electric interlock feature suitable for use in applications in which users need hands-free, on-and-off power activation. The foot switch provides single-stage, momentary operation for quick-release termination, and its electric interlock feature automatically terminates contact if the machinery malfunctions. It has a cast zinc housing with a formed steel base for durability and protection from corrosion. The non-skid base gives the foot switch stability to help prevent sliding on smooth floors, and it has bolt holes for mounting to the floor or equipment. Raised ribs on the treadle also provide positive traction during operation. An integral, adjustable strain relief clamp protects the cord (included) from damage caused by pulling or stretching. This foot switch assembly meets Canadian and United States Underwriters Laboratories (UL) standards for quality assurance and meets European Conformity (CE) product compliance safety standards. It has an Ingress Protection (IP) rating of 20 for protection against small amounts of dripping water and access with a finger. A full and oversized steel guard and other accessories are available for this product (contact manufacturer). This momentary operation foot switch is suitable for light-duty applications such as power tools, musical equipment, and others.SpecificationsOutput13 amp, 125-250VHP1/2Mounting2 bolt holesCord8' (18/4) Circuitry SPDT, NO, Form A contactUnit weight2.5 lb. Dimensions1.25 x 7.55 x 5.56" (H x W x D)SafetyCEQualityULDegree of protectionIP20 *H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back. Foot switches are used to turn on and off electrical devices and may also provide control over the device's speed and mode of operation. They come with up to three pedals and can have a maintained, momentary, variable, or anti-trip switch action. For maintained action switches, one press of the pedal controls the power, whereas momentary action switches require constant pressure on the pedal for power. Variable action switches (also called foot potentiometers) function similarly to momentary action switches, but also provide control over the connected device's operating speed. Anti-trip action switches require users to release a safety latch before pressing down for momentary action. Foot switches vary in their contact specifications, amp ratings, plugs and receptacles, and material construction to suit different applications, device amperages, plug configurations, and environments. Foot switches are commonly used with power tools, sewing machines, musical instruments, dental equipment, and lighting, and in the construction, laboratory, production, and medical fields, among others.Linemaster Switch Company manufactures electromechanical, pneumatic, digital, linear Hall effect, and wireless foot switches for use in the industrial, medical, computer, and musical fields, among others. The company, founded in1952, is headquartered in Woodstock, Connecticut, and meets International Organization for Standardization (ISO) 2001:2008 and ISO 13485:2003 standards.