<span Class='notranslate'>Square D </span> Qob390vh-1021 | Miniature Circuit Breaker, 90a, 3p, Ac Shunt Trip, 22 Kaic
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Square D QOB390VH-1021 miniature circuit breaker used to open the circuit when the current passing through exceeds the pre-determined setting, thus protecting from electrical hazards
Bolt-on mounting allows quick and secure field installations ideal for NQD and NQOD panelboards
Thermal-magnetic trip mechanism avoids tripping on mild overloads while instantaneously responding against severe power surges
Equipped with box lug terminals for accommodating wires of sizes ranging from 4 to 2/0 AWG
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