Compliance and ratings
The 5SJ4318-7HG42 is a 3-pole C-curve MCB from SENTRON series for mechanical engineering. Rated breaking capacities: 10 kA and 15 kA; insulation voltage 440 V AC; operational voltages 400 V AC / 60 V DC; pollution degree 3; overvoltage category 3; ambient -40 °C to +75 °C; 95% humidity.
Physical integration
Mounts on standard DIN rail (35 mm) in any position. The casing occupies 3 modular width units (54 mm wide, 121 mm high, 70 mm deep). Terminations use combined terminals (top and bottom) accepting Cu conductors; tightening torque is specified at 3.5 N·m for 60/75 °C wire. Protection class: IP20 with conductors connected, IP40 in the handle range. Vibration resistance: 50 m/s² at 25–150 Hz and 60 m/s² at 35 Hz for 4 seconds. The breaker is halogen-free and silicon-free, and the housing is sealable — relevant for installations in cleanrooms or areas with outgassing restrictions.
Sourcing and lifecycle
Compliance documentation supplied with each shipment covers the declared standards; no additional OEM certifications beyond those are asserted.