Siemens 3RV1421-1DA10 Soft Starter 3-Phase 2.2-3.2A

Siemens 3RV1421-1DA10 is a three‑pole SIRIUS motor starter protector designed to deliver integrated overload and short‑circuit protection for small 3‑phase motors. It provides thermal overload (A‑release) adjustable from 2.2 to 3.2 A and a short‑circuit release rated up to 65 A, with screw‑terminal wiring for straightforward panel connections. The main circuit is rated for voltages up to 690 V AC, making it suitable for protecting motors in standard 3‑phase power networks. As part of the Siemens 3RV1/SIRIUS family, this unit is commonly used to guard motors in light industrial equipment such as pumps, fans, and conveyors where compact, reliable protection is needed.