Siemens AG 3RV1721 1GD10 Manual Circuit Breaker

Siemens 3RV1721-1GD10 is a three‑pole, S00‑frame SIRIUS motor starter protector designed for plant protection circuits and listed under UL 489 and CSA C22.2 No. 5‑02. It uses screw terminals for secure wiring and combines overload and short‑circuit protection in a compact package, featuring an A‑release overload trip at 6.3 A and an instantaneous N‑release trip at 82 A to guard three‑phase loads. This 3RV2 family device is intended for panel installations in industrial control cabinets where space is at a premium, providing coordinated protection for motors and other three‑phase equipment. It supports standard switching capacity and is built to meet common industrial protection standards, making it a reliable choice for motor starters and protection schemes requiring UL/CSA compliance in a compact, single‑unit package.