Siemens 5SL6150-7 SENTRON MCB — 1-pole C-curve 50 A, 6 kA
The Siemens 5SL6150-7 is a 1-pole SENTRON miniature circuit breaker with a C tripping characteristic, rated 50 A at 230/400 V AC.
At 50 A it handles a 11.5 kW resistive load on a single phase (230 V) or a 34.5 kW three-phase load (400 V) before the thermal-magnetic trip engages. Single-pole construction means it switches only the phase conductor — use it in single-phase branch circuits or as one pole of a multi-pole assembly. The 76 mm depth and 90 mm height are standard SENTRON dimensions, so it aligns with busbar systems and enclosure cutouts across the 5SL family. Rated for overvoltage category III (fixed installation) and pollution degree 2, it is suited for clean indoor environments typical of residential and infrastructure panels.
A single modular width (18 mm) means 18 breakers fit per meter of DIN rail. The unit is sealable — a lead seal can be fitted through the front cover to prevent tampering after commissioning.