What it is and where it fits
The Siemens SENTRON 5SJ4332-8HG42 is a 3-pole miniature circuit breaker from the 5SJ4 series, with D tripping characteristic. It occupies 3 modular units (54 mm wide, 121 mm high, 70 mm deep) and mounts on standard DIN rail in any position. Rated for 400 V AC and 60 V DC, it handles a temperature range from -40 °C to 75 °C, making it suitable for mechanical engineering and industrial environments.
Integration notes
Terminals are combination type (screw and clamp) on both top and bottom, accepting conductors with a tightening torque of 3.5 Nm. IP20 with connected conductors, IP40 at the handle. The breaker is sealable, halogen-free, and silicon-free – suitable for clean-room or low-outgassing applications. Degree of pollution 3 and overvoltage category 3 cover most industrial environments.