This is a plug-in Zinsco Circuit Breaker. It has two “U” shaped cut outs on the bottom. It is: “4.75”Lx1.5″Wx2.5″H
Tag: zinsco breakers catalog
Zinsco QC50
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Zinsco QC70
Zinc Product Type : Circuit Breaker, Type : QC Series, No. of Poles : 2-Pole, Phase : 1-Phase, Voltage Rating : 120/240 Vac, Amperage : 70 Ampere At 40 Deg C, Connection : Plug-In
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Zinsco QB20
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Zinsco QB40
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Zinsco QB50
QB, 50 Amp, 1 Pole, 120 Volt, Miniature Circuit Breakers from Zinsco
Zinsco QCB15
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