D-curve selectivity for motor and transformer branches
The 5SJ4205-8HG41: The D tripping characteristic means this 0.5 A MCB tolerates the high inrush currents typical of small motors, transformers, and solenoid valves — it trips on short-circuit, not on startup surge. Temperature derating is published: holds 0.5 A up to 40 °C, then drops to 0.48 A at 45 °C, 0.46 A at 50 °C, 0.44 A at 55 °C, and 0.42 A at 60 °C (–).
Panel fit and mounting constraints
Two modular-width units (36 mm wide,) snap onto standard mounting rail in any orientation.