Siemens Sentron 5SY4 MCB Mini Circuit Breaker 1P, 63 A, 10 kA, Curve B. Tripping Characteristics: Type B. Rated AC Voltage: 230 V, 400 V. Length: 17.6mm. Width: 76.4mm. Depth: 89.8mm. Reset Actuator Type: Toggle Switch. Application: Industrial, Plant Engineering. Special Features: Double Terminal Chamber, Time-Saving Replacement. Terminal Contact Type: Screw. MPN: 5SY4163-6