Overview Reviews Product Description Siemens 3RV1021-1DA10 Circuit Breaker Size S0 For Motor Protection CLASS 10 A-Release 2232 A Short-Circuit Release 42 A Screw Terminal Standard Switching Capacity. Product Videos Custom Field Product Reviews Write a Review Write a Review × Siemens Siemens 3RV1021-1DA10 Circuit Breaker Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *