Siemens Circuit Breaker: Surge Protector
Circuit breakers and surge
arresters limit surge voltage by conducting large surge currents safely to
ground. While the voltage of these surges may be high enough to damage you
equipment, the associated current is very low. And since circuit breakers
protect against overcurrent not overvltage, surge protection is needed. Two
types of surge protection are point-of-entry and point-of-use.