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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 B1N1C40R is suitable for branch circuit device protection.
The Altech 1CU40R is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Altech DC1DU40L is suitable for branch circuit device protection.
The Altech 1DU40L is suitable for branch circuit device protection.
The Noark B1N1D40 is suitable for branch circuit device protection.
The Noark B1N1D40R is suitable for branch circuit device protection.
The Altech 1DU40R is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Noark B1N2B40 is suitable for branch circuit device protection.
The Noark B1N2B40R is suitable for branch circuit device protection.
The Altech 2BU40R is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Altech 2CU40L is suitable for branch circuit device protection.
The Noark B1N2C40 is suitable for branch circuit device protection.