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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 B1N1D50 is suitable for branch circuit device protection.
The Altech 1D50UR is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Altech 1DU50R is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Noark B1N2B50 is suitable for branch circuit device protection.
The Altech 2B50UR is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Altech 2BU50R is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Altech 2CU50L is suitable for branch circuit device protection.
The Noark B1N2C50 is suitable for branch circuit device protection.
The Altech DC2CU50L is suitable for branch circuit device protection.
The Altech 2CU50R is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Altech 2DU50L is suitable for branch circuit device protection.
The Noark B1N2D50 is suitable for branch circuit device protection.