SENTRON 5SL6306-7BB — 3-pole C-curve MCB, 6 A, 6 kA
The Siemens 5SL6306-7BB is a SENTRON miniature circuit breaker, 3-pole, C-curve, rated 6 A at 400 V AC with a 6 kA breaking capacity per both EN 60898 and IEC 60947-2.
Thermal derating and ambient range
Rated 6 A at 30 °C ambient; at 40 °C the continuous current drops to 5.76 A, at 45 °C to 5.64 A, and at 55 °C to 5.37 A. For a panel builder stuffing a gland plate, the 54 mm width (3 MW) and 70 mm installation depth leave room for adjacent breakers and busbar routing — no overhang past the DIN rail.
Integration and approvals
IP20 with connected conductors — clean, dry indoor environments only, not washdown or outdoor. The sealable design allows lockout/tagout in panel applications where isolation verification is required.