Amperage Rating: 50 Amp Number of Poles: 3-Pole (3P) Voltage Rating: 240 VA Interrupting Capacity (AIC): 10 kA at 240 VAC Mounting Style: Plug-On (designed exclusively for Square D QO 3-phase load centers and NQ/NQOD panelboards).Trip Technology: Thermal-magnetic mechanism for quick-open (Qwik-Open) protection within 1/60th of a second .Wire Range: Accepts 8 AWG to 2 AWG copper or aluminum wiring through secure box lugs. Visi-Trip Indicator: Features a highly visible, red mechanical flag inside the window to instantly identify a tripped state.