Siemens 3RV1742-5FD10 is a three-pole System Protection Circuit Breaker (size S3) from the SIRIUS 3RV2 family, intended for plant protection and non-motor loads in industrial power circuits. It is UL 489 and CSA C22.2 No.5-02 approved, with an A-release of 35 A and an N-release of 455 A, and it uses fixed screw-terminal connections with IP20 front protection. The device withstands impulse voltages up to 6,000 V and provides standard switching capacity, with no removable terminals for auxiliary or control circuits.
