Siemens 3RV1721-1JD10 is a compact S0-sized circuit breaker from the Sirius 3RV1 family, designed for plant protection in control panels and automation cabinets. It carries UL 489 and CSA C22.2 No.5-02 approvals, uses a screw-terminal connection, and offers standard switching capacity. The device is specified with an A-release of 10 A and an N-release of 130 A, aligning with its role as a protective device in plant‑protection circuits. This part is intended for panel installation where reliable, code‑compliant circuit protection is required, making it suitable for safeguarding control circuits and small automation loads in industrial settings.
