Siemens 3RV2021-1DA10 is a three‑pole manual motor protector (motor protection circuit breaker) in the 3RV2 family, designed for S0 motor protection and rated up to 690 V AC. It provides thermal/magnetic protection with an adjustable A‑release of 2.2 to 3.2 A and a 42 A N‑release, in a screw‑terminal, DIN‑rail mounted package with a rotary ON/OFF handle for straightforward manual operation. Classified as Class 10, this device protects three‑phase motors across the 220–690 VAC range, making it a compact, reliable choice for panel‑mount motor protection applications.
