Siemens 5SL4105-7 SENTRON MCB — 0.5 A, C-Curve, 1-Pole
The Siemens 5SL4105-7 is a 1-pole miniature circuit breaker from the SENTRON series, rated at 0.5 A at 400 V AC with a C tripping characteristic. The C-curve means it is designed for moderate inrush currents — typical for lighting circuits, small transformers, and control transformers where the start-up surge is higher than a resistive load but not as high as a motor.
The 0.5 A rating is valid at 30 °C ambient. At 40 °C the continuous current derates to 0.47 A; at 45 °C to 0.46 A; at 55 °C to 0.43 A.
Mounting and Installation Notes
The installation depth behind the panel is 70 mm; the overall depth is 76 mm. Degree of pollution 2 and overvoltage category III are the standard ratings for a fixed-installation distribution board.