Arc suppression is the reduction of the electric arc energy that occurs when current-carrying contacts are opened and closed. An electric arc is a man-made, continuous arc-discharge consisting of highly energized electrons and ions supported by an electric current of at least 100mA; not to be confused with an electric. Every time an electrical power device (for example: heaters, lamps, motors, transformers or similar power loads) turns on or off, its switch, relay or transitions either from a CLOSED to an OPEN state ("BREAK"). The efficacy of an arc suppression solution for can be assessed using the Contact Arc Suppression Factor ("CASF") to compare the calculated arc energy of the unsuppressed arc with that of the suppressed arc: CASF = W(arc) / W(arclet) The circuit diagram is part of an issued patent for an electronic power contact arc suppressor intended to protect the contacts of electrical or. It suppresses arcs by providing an alternate path around contacts as they open or close. • There are several possible areas of use of arc suppression methods, among them, electrostatic processes where electrical arcs are not desired (such as,, and contact current arc suppression. Common devices that may be reasonably effective arc suppressors in applications operating below 2 Amperes include,,,,, and. Contact arc suppression solutions that are. Arc suppression techniques can produce a number of benefits: 1. Minimized contact damage from arcing and therefore reduced maintenance, repair and replacement frequency.2. Increased contact reliability.