Siemens Circuit breaker for motor protection, size S0, 33AProduct Overview Circuit breaker size S0 for motor protection, CLASS 10 A release 1. 8 2. 5 A N release 33 A Spring type terminal Standard switching capacity Key Features Size: S0 (45 mm width) Current Range: 1. 8 2. 5 A adjustable thermal overload release Short circuit Release: 33 A (N release) Trip Class: CLASS 10 according to IEC 60947 4 1 Connection System: Spring type terminal Switching Capacity: Standard switching capacity Number of Poles: 3