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Shop our wide selection of UL 489 miniature circuit breakers and UL 1077 supplementary protectors in both AC and DC voltages. They are available in one-, two- and three-pole versions with an amperage range up to 63A and in B, C or D trip curve options to meet your applications needs. Difference between UL 489 vs. UL 1077
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The Noark B1H1B4 is suitable for branch circuit device protection.
The Noark B1H1B4R is suitable for branch circuit device protection.
The Altech DC1CU4L is suitable for branch circuit device protection.
The Noark B1N1C4 is suitable for branch circuit device protection.
The Noark B1N1C4R is suitable for branch circuit device protection.
The Altech 1CU4L is suitable for branch circuit device protection.
The Altech 1CU4R is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Noark B1H1C4 is suitable for branch circuit device protection.
The Noark B1H1C4R is suitable for branch circuit device protection.
The Altech DC1DU4L is suitable for branch circuit device protection.
The Noark B1N1D4 is suitable for branch circuit device protection.
The Noark B1N1D4R is suitable for branch circuit device protection.