Single phase applications
High temperature applications which require de-rating of the electrical ratings
Marine applications with more severe environmental conditions
Other applications might also affect the electrical ratings.
Consult the relevant clauses in these instructions and in the
VLT® HVAC Drive Design Guide, MG.
11Bx.yy
for information about the electrical ratings.
Installation requirements:
The overall electrical safety of the adjustable frequency drive requires special installation consid-
erations regarding:
Fuses and circuit breakers for overcurrent and short-circuit protection
Selection of power cables (line, motor, brake, load sharing and relay)
Grid configuration (IT,TN, grounded leg, etc.)
Safety of low voltage ports (PELV conditions).
Consult the relevant clauses in these instructions and in the
VLT® HVAC Drive Design Guide
for
information about the installation requirements.
VLT
®
HVAC Drive Instruction Manual 1. Safety
MG.11.A4.22 - VLT
®
is a registered Danfoss trademark
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