The Siemens SENTRON 5SJ6202-7 is a 2-pole miniature circuit breaker (MCB) from the 5SJ6 series, rated at 2 A and 400 V AC with a C tripping characteristic.
At 2 A rated current, this breaker protects a circuit drawing up to 2 A continuously; the 400 V AC rated supply voltage covers three-phase line-to-line applications in 400 V systems. Overvoltage category 3 and energy limiting class 3 indicate it is built for fixed-installation duty with adequate arc quenching to limit let-through energy on faults. The 2-pole configuration (number of poles = 2) means it disconnects both phase and neutral (or two phases) simultaneously — typical for single-phase or split-phase branch circuits.
Panel integration
It accepts conductors from 1.5 mm² minimum to 2.5 mm² maximum — sized for standard 2.5 mm² branch-circuit wiring. The 70 mm depth leaves clearance for wiring and busbar connections in most 100 mm deep enclosures.