3-Pole C-Curve MCB for AC/DC Branch Protection
The Siemens 5SJ4305-7HG42 is a 3-pole miniature circuit breaker from the SENTRON 5SJ4 series, featuring a C tripping characteristic and a rated current of 0.5 A at AC and DC voltages up to 60 V DC. This makes it suitable for protecting lighting, control transformers, and moderate inrush loads in industrial panels.
The IP20 (connected conductors) and IP40 (handle range) protection class allows installation in enclosures with IP40 front panels. Terminals are combined top and bottom; tightening torque is 3.5 Nm for Cu conductors at 60/75 °C.
The 5SJ4305-7HG42 is halogen-free and silicon-free, a standard spec for environments sensitive to outgassing. Suitable for mechanical engineering and general industry use.