Specifications

8 CVHE-SVN03D-EN
Power
Supply
Power Supply
Wiring
To assure that power supply wiring
to the starter panel is properly
installed and connected, review and
follow the guidelines outlined
below.
3-Phase Power Source
1 Verify that the starter nameplate
ratings are compatible with the
power supply characteristics and
with the electrical data on the
unit nameplate.
2 If the starter enclosure must be
cut to provide electrical access,
exercise care to prevent debris
from falling inside the enclosure.
If the starter cabinet has a
removable panel, be sure to
remove the panel from the unit
before drilling holes.
CAUTION
Component Damage!
Remove all debris from inside the
starter panel. Failure to do so may
result in an electrical short and
could cause serious starter
component damage.
3 Use copper conductors to
connect the 3-phase power
supply to the remote or unit-
mounted starter panel.
CAUTION
Use Copper Conductors
Only!
Unit terminals are not designed to
accept other types of conductors.
Failure to use copper conductors
may result in equipment dama
ge.
4 Size the power supply wiring in
accordance with the Minimum
Circuit Ampacity (MCA) shown
on the unit nameplate.
(MCA = (RLA x 1.25) + Control
Power Load)
5 Make sure that the incoming
power wiring is properly phased;
each power supply conduit run
to the starter must carry the
correct number of conductors to
ensure equal phase
representation. See Figure 1.
Note: Connect L1, L2 and L3 per
starter diagram.
)
Figure 1. Proper phasing for starter power supply wiring and conduit loading
G
L
3
L2 L1
G
L3 L2 L1
G
L3
L2 L1
G
L3 L2 L1
L3
L2 L1
G
6 As you install the power supply
conduit, make sure that this
position does not interfere with
the serviceability of any of the
unit components, nor with
structural members and
equipment.
7 Tightening torque -follow starter
manufactures torque
specifications and annual
inspection methods.
Also, assure that the conduit is long
enough to simplify any servicing
that may be necessary in the
future (e.g. starter removal).
Note: Use flexible conduit to
enhance serviceability and
minimize vibration transmission.
Circuit Breakers and
Fusible Disconnects
Size the circuit breaker or fuse
disconnect in compliance with NEC
or local guidelines.