Square D QO350 Circuit Breaker

Common trip, thermal magnetic, 3 pole, 120/240 vac at 50/60 hz (ul/csa), 48 vdc, 50 ampere, interrupting rating 10 kiloampere at 120/240 vac (ul/csa), 5 kiloampere at 48 vdc, wire size 8 to 2 awg (aluminum/copper), plug on mounting.