Siemens 5SJ4204-7HG41 Molded Case Circuit Breaker

Siemens SENTRON 5SJ4204-7HG41 is a two-pole molded‑case circuit breaker (MCCB) from the 5SJ4 family, rated for 240 V AC with a nominal current of 4 A. It delivers 14 kA of interrupting capacity at 240 V and uses a thermal‑magnetic trip mechanism with a C‑type (Class C) curve for reliable overload and short‑circuit protection. The unit is 70 mm wide and designed for feed‑through connections, weighing about 0.33 kg, and it is UL 489 listed for use in standard distribution panels and control cabinets. This device supports operation in typical industrial environments up to 40°C and is suitable for protecting 2‑pole circuits in power distribution; some datasheets also note a dual voltage rating of 240 V AC / 125 V DC for applicable configurations.