Murray strongly recommends against the use of "used" breakers
From the ManufacturerThis 120/240 volt Zinsco 125 amp
12 Sec Time Delay (At 200 Percent Rated Load) Characteristics
Made of 6061T-6 aluminum alloy
Eaton QCR1015 15A, 1P, 120/240V, Type QCR, 10 kAIC, CB Murray strongly recommends against thePart Number: 786679473504Part: Eaton QCR1015 15A, 1P, 120 240V, Type QCR, 10 kAIC, CB15 Amp, 1 Pole Miniature Industrial Circuit Breaker, Type QCR, Quicklag, Cable in Cable out, 10 kAIC, 120 240 VAC. Din Rail Mount. Amps: 15Volts AC: 120, 240Poles: 1Type: Miniature Industrial, Cable In Cable Out, BreakerInterrupt Rating AC: 10000Also known as: 786679473504, breaker; cable in; 1 pole breaker; cable out; qc; type qc; circuit breaker, CUTQCR1015, Eaton,