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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 B1N3B20 is suitable for branch circuit device protection.
The Noark B1N3B20R is suitable for branch circuit device protection.
The Altech 3B20UR is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Altech 3BU20R is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Noark B1H3B20 is suitable for branch circuit device protection.
The Noark B1H3B20R is suitable for branch circuit device protection.
The Noark B1N3C20 is suitable for branch circuit device protection.
The Noark B1N3C20R is suitable for branch circuit device protection.
The Altech 3C20UR is suitable for branch circuit device protection.
The Altech 3CU20R is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.
The Noark B1H3C20 is suitable for branch circuit device protection.
The Noark B1H3C20R is suitable for branch circuit device protection.