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Panelboards and Switchboards
UL 67, UL 50, CSA C22.2 No.'s 29 and 94 -1989, NEMA PB1, NFPA 70 Art. 408, Federal Specification W-P-115C Type 1 Class 1, UL891
Changing a trip unit, when possible, can be less costly and more convenient than obtaining a new circuit breaker.
No, the presence and necessity of the mounting foot on the I-Line version of these circuit breakers excludes the capability of changing the trip unit. This is the case for thermal-magnetic versions as well as versions with Micrologic trip units.
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