Hydraulic/Magnetic Circuit Breaker - 3 Pole - 277VAC/80VDC - Two Color Visi-Rocker - Indicate ON - Horizontal Legend - Without Aux Switch - Screw 8-32 (Bus Type) - ON-OFF Legend - White Visi-Color - 6-32 x 0.195 Inches Threaded Insert (Two Per Pole) - UL