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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 1D1UL is suitable for branch circuit device protection.
The Altech 1DU1L is suitable for branch circuit device protection.
The Altech 1DU1R is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Noark B1H1D1 is suitable for branch circuit device protection.
The Noark B1H1D1R is suitable for branch circuit device protection.
The Noark B1N2B1 is suitable for branch circuit device protection.
The Noark B1N2B1R is suitable for branch circuit device protection.
The Altech 2BU1R is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Noark B1H2B1 is suitable for branch circuit device protection.
The Noark B1H2B1R is suitable for branch circuit device protection.
The Noark B1N2C1 is suitable for branch circuit device protection.
The Noark B1N2C1R is suitable for branch circuit device protection.