The Siemens SENTRON 5SP5292-7CC is a 2-pole DC miniature circuit breaker rated 125 A with a C tripping curve, designed for 250 V DC systems and a breaking capacity of 10 kA per IEC 60947-2 at DC. The 2-pole design breaks both the positive and negative DC rail, providing full isolation on fault.
Occupies 3 modular width units at 54 mm wide. Tunnel terminals top and bottom accept conductors typical for 125 A — verify lug sizing against your wire gauge. Installation depth is 70 mm; ensure enclosure depth clearance beyond that for wiring and heat dissipation. The supply cord entry is not arbitrary — observe the marked line/load orientation on the device.
Shock-rated to 150 m/s² at 11 ms half-sine and vibration-rated to 50 m/s² at 25–150 Hz and 60 m/s² at 35 Hz, making it suitable for installation on machinery or in transportation equipment subject to moderate vibration. Halogen-free and silicon-free construction reduces corrosive outgassing in enclosed panels.