Siemens 5SY4106-7 Single Pole Miniature Circuit Breaker

Siemens 5SY4106-7 is a SENTRON miniature circuit breaker designed for single-pole protection in 230/400 V AC circuits, delivering a nominal current rating of 6 A and a short-circuit breaking capacity of 10 kA. The device uses a thermal-magnetic trip mechanism with a C-type characteristic, offering reliable coordination for moderate overcurrents and fast disconnection under short-circuit events, and it measures about 70 mm in depth (D=70 mm) to fit standard distribution enclosures. Listed as a 1P, 230/400 V, 6 A, 10 kA MCB, this part is suitable for protecting individual branch circuits in residential and light-commercial installations—such as lighting, outlets, or small appliance circuits—within low-voltage electrical panels. As part of Siemens SENTRON family, the 5SY4106-7 provides compact, dependable overload and short-circuit protection for single-phase circuits, and uses the C-curve profile to balance tripping response for typical domestic load profiles.