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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 1DU20R is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Noark B1H1D20 is suitable for branch circuit device protection.
The Noark B1H1D20R is suitable for branch circuit device protection.
The Noark B1N2B20 is suitable for branch circuit device protection.
The Noark B1N2B20R is suitable for branch circuit device protection.
The Altech 2B20UR is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Altech 2BU20R is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Noark B1H2B20 is suitable for branch circuit device protection.
The Noark B1H2B20R is suitable for branch circuit device protection.
The Noark B1N2C20 is suitable for branch circuit device protection.
The Noark B1N2C20R is suitable for branch circuit device protection.
The Altech DC2CU20L is suitable for branch circuit device protection.