Potter&brumfield - Te Connectivity W57-Xb7A4A10-10.
CIRCUIT BREAKER, THERMAL, 1P, 250V, 10A; Product Range:W57 Series; Current Rating:10A; No. of Poles:1 Pole; Voltage Rating VDC:50VDC; Voltage Rating VAC:250VAC; Circuit Breaker Mounting:Panel; Operating Voltage:250V; Voltage AC:250V