5SJ4115-7HG40

The Siemens 5SJ4115-7HG40 is a 1-pole miniature circuit breaker (MCB) from the 5SJ4 series, rated at 1.6 A with a C-curve tripping characteristic. It is designed for overcurrent protection in low-voltage distribution systems, suitable for both residential and commercial applications. The breaker offers a rated insulation voltage of 440 V and a rated supply voltage of 400 V AC at 50 Hz. Its breaking capacity is 10 kA according to EN 60898 and 15 kA per IEC 60947-2, with a short-circuit breaking capacity of 14 kA at AC per UL 1077 and CSA C22.2 No. 235.

Mechanically, the device measures 90 mm in height, 18 mm in width, and 70 mm in depth, requiring a single modular width unit for DIN rail installation. It weighs approximately 165 g. The terminals accept conductors from 0.75 mm² to 25 mm² (stranded with ferrule) and require a tightening torque of 3.5 N·m. The MCB features touch protection and is halogen-free, silicon-free, and sealable for tamper resistance. It can accommodate supplementary devices.

Protection class is IP20 with connected conductors and IP40 in the handle area. The device is designed for an overvoltage category of III and a pollution degree of 3. Vibration resistance is 50 m/s² at 25 to 150 Hz and 60 m/s² at 35 Hz. Mechanical service life is rated at 10,000 switching cycles.