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  1. Square D - QOB340 - Circuit breaker. 3P 40Amp 240VAC. Type: QOB.
    Square D - QOB340 - Circuit breaker. 3P 40Amp 240VAC. Type: QOB.
    Special Price $41.95 Regular Price $75.00
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    Circuit breaker. 3P 40Amp 240VAC. Type: QOB, 3 Phase. Bolt on. New. Learn More
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