Quick-Make, Quick-Break Switch Mechanism Combined with Inverse Time Element Tripping Operation and Trip- Free Handle Design; Type CH Circuit Breakers Trip to the OFF Position, Eliminating Nuisance Callbacks; The thermal-magnetic Trip Curve Avoids Nuisance Tripping on Mild Overloads While Reacting Almost Instantaneously to Severe Short-circuit Conditions; Multipole Breakers have Internal Common Trip Connection to Operate All Poles Simultaneously; Handles are Marked with ON-OFF Indication and Ampere Rating of the Breaker