Hydraulic/Magnetic Circuit Breaker - 1 Pole - 277VAC/80VDC - Two Color Visi-Rocker - Indicate ON - Vertical Legend - Without Aux Switch - Screw 10-32 (Bus Type) - I-O Legend - Red Visi-Color - 6-32 x 0.195 Inches Threaded Insert (Two Per Pole) - UL Recogn