Our offices will be closed on Monday, May 28th in observance of Memorial Day
FedEx shipped orders placed before 6:00PM ET on Friday, May 25th will ship same day (if paid for by Credit Card or PO account in good standing & based on product availability). Orders placed after the Friday cutoff will ship on Tuesday, May 29th. Please see our Business Policies for earlier shipping cutoff times for drop-shipped items and shipping by other carriers.
Technical Info for UL 1077 Rated Supplementary Protectors
UL 1077 supplementary circuit breakers provide overcurrent protection where branch protection is already provided or not required. DIN-rail mountable single-, double-, and triple-pole models offer B, C or D trip curves, and are rated for up to 63A. Also available are DINnector terminal-block style protectors that integrate easily into wiring systems.