3RV2021-1JA20 Siemens circuit breaker size s0 for motor protection, class 10 a-release 7...10 a n release 130 a spring-type terminal standard switching capacity
3RV2021-1HA20 SIEMENS Circuit breaker size S0 for motor protection, CLASS 10 A-release 5.5...8 A N-release 104 A Spring-type terminal Standard switching capacity
3RV2021-0EA10 SIEMENS circuit breaker / motor protector, with
an on/off rotary dial for setting motor FLA.
It has built-in heater elements that provide
overload protection and magnetic trip elements
to protect the motor.