Cutler-Hammer, Circuit Breaker, 3 Pole, 600 Amp Trip Unit, LH Alarm Switch: 120V 10 Amps Style# 458D062G14, RH Auxiliary Switch: 3A-3B, (Drilled for Auxiliary Switch), Cat# HMA3600
HMA3600 Circuit Breaker by Eaton, Cutler-Hammer or Westinghouse