Danfoss VLT Training Manual page 45

VLT Installation
Review
6) When installing a VLT, to comply with UL/cUL,
Rev.02
which of the following must always be
connected to the incoming power?
A. Isolation Transformer
B. Fuses
C. Circuit Breakers
D. 3% Input Line Reactor
E. To comply with UL / cUL, all of the above
must be installed
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