TYPE E Self Protected Motor Controller
TYPE E Self Protected Motor Controller
(OP)
i normally use contactors and motor circuit protectors together to form a self protected motor controller (so as to follow UL508A and eliminate the need for additional fuse protection). i've also seen this listed as a 'TYPE E' motor controller...does a type e motor controller mean strictly that it is self protected or is the definition more broad? (somewhere that has an actual defintion of a type e controller would be great)





RE: TYPE E Self Protected Motor Controller
A - Type A combination motor controller consisting of a disconnect switch, fuses, motor controller and overload relay
C - Type C combination motor controller consisting of Inverse time circuit breaker, motor controller and overload relay
D - Type D combination motor controller consisting of instantaneous trip circuit breaker, motor controller and overload relay
E - Type E (self-protected) combination motor controller consisting of manual self-protected combination motor controller and motor controller
F - Type F combination motor controller consisting of manual self-protected combination motor controller and motor controller
RE: TYPE E Self Protected Motor Controller
RE: TYPE E Self Protected Motor Controller
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RE: TYPE E Self Protected Motor Controller
UL508 defines these types. The linked document does a nice job explaining the different types.
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RE: TYPE E Self Protected Motor Controller