Mike Dolt Enterprises
Mike Dolt Enterprises
User: sokkerdude101, Location: Brooklyn, NY
Asked on: Wednesday, March 23, 2011 at 11:47 am EDT
Answered on: Tuesday, May 14, 2024 at 3:09 am EDT
Question: 690.64 (B) (5) suitable for feedback only addresses circuit breakers, does that mean only breakers are allowed? (B) (1) refers to fusible disconnect..I have been told that fusible disconnect are bi-directional ? Any help would be appreciated, thank you>
690.64 (B) (5) and (B) (1) Applicability
(B) (5) applies to circuit breakers only, addressing "circuit breakers suitable for feedback". (B) (1) applies to "fusible disconnecting means", which do not include circuit breakers.
Bidirectionality of Fusible Disconnects
Fusible disconnects are uni-directional, meaning they interrupt current in only one direction. They do not provide protection against reverse current flow.
Conclusion:
Based on the provided information, only circuit breakers (not fusible disconnects) are suitable for feedback in accordance with 690.64 (B) (5). Flag for review