


Square D QOB2100-1021QOB Bolt On Three pole thermal magnetic circuit breakers provide overcurrent protection and switching on AC and DC systems. Bolt on QOB circuit breakers are for use in NQOB and NQOD panelboards. QOB circuit breakers have an over center, trip free toggle mechanism with quick make, quick break action and positive handle indication. The tripping mechanisms in three pole circuit breakers operate such that an overcurrent on any pole of the circuit breaker
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Your Square D QOB2100-1021 orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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Fits perfect
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