FIELD: electrical equipment.
SUBSTANCE: circuit-breaker system includes a housing for holding the electric circuit breaker in the inner area separated from the outer surrounding area. Electric interrupter comprises at least the first pair of electric contact elements that can move between the open and closed positions. Voltage limiter, such as metal oxide varistor (MOV), is connected through a pair of electrical contact elements to receive and dissipate transient voltage, when the first pair of electric contacts moves from the closed position into the open position, thereby reducing the undesired arcing and premature wear or erosion of certain electrical components.
EFFECT: technical result is provision of circuit breaker internal protection against overvoltage.
25 cl, 6 dwg
