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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 Altech 1DU4R is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Noark B1H1D4 is suitable for branch circuit device protection.
The Noark B1H1D4R is suitable for branch circuit device protection.
The Noark B1N2B4 is suitable for branch circuit device protection.
The Noark B1N2B4R is suitable for branch circuit device protection.
The Altech 2BU4R is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Noark B1H2B4 is suitable for branch circuit device protection.
The Noark B1H2B4R is suitable for branch circuit device protection.
The Noark B1N2C4 is suitable for branch circuit device protection.
The Noark B1N2C4R is suitable for branch circuit device protection.
The Altech DC2CU4L is suitable for branch circuit device protection.
The Altech 2CU4L is suitable for branch circuit device protection.