□
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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