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The Square D QOB390VH is a three-pole miniature circuit breaker that provides overcurrent protection for both AC and DC systems. It is rated for ninety amps at one hundred twenty to two hundred forty volts. This circuit breaker uses a thermal magnetic design with features such as a trip-free toggle mechanism and quick action operation. The VisiTrip indicator offers a visual cue if the breaker has tripped, enhancing accessibility and safety during use.
Designed for effective overcurrent protection, the QOB390VH is suitable for residential or commercial applications where reliable performance is critical.
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