Square D Y1B120 1 Pole Circuit Breaker
The Square D Y1B120 is a 1 Pole thermal magnetic molded case circuit breaker with a current rating of 20 Amps and a voltage rating of 277V. It has an interrupting rating of 10kA@277V. The Y1B120 has a bolt-on connection type and includes LI – long time and instantaneous functions.