What is the UL 489 standard on the IMO Precision Controls UB10C1040A Miniature Circuit Breaker?
IMO UB10C1040A Miniature Circuit Breaker, 40 A, C Curve, 1 Pole
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Open Apr 29, 2026 - 08:43 AM
Circuit Breakers
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Apr 29, 2026 - 08:47 AM
The UL 489 standard on Miniature Circuit Breakers such as the IMO Precision Controls UB10C1040A indicates that they have passed the tests from overcurrent and short-circuit protection. It can protect multiple devices at once and can also be used instead of a UL 1077 device.
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