5SJ4101-8HG42 SIEMENS IEC Miniature Circuit Breaker: 1 A Amps, 60V DC, 10kA at 277V AC, Screw Clamp, 5SJ4, 277V AC
D-curve one-pole miniature circuit breakers trip instantaneously when the current load exceeds ten to 20 times the rating of the device.