Delta VFD022EL43W-1

Appendix B Accessories  VFD-EL-W
B-4
B.2.2 Zero Phase Reactor
RF220X00A
UNIT: mm [inch]
Cable
type
(Note)
Recommended Wire Size
Qty.
Wiring
Method
Diagram A
Please wind each wire four times around the core. The
reactor must be put as close to the inverter output as
possible.
Power
Supply
Zero Phase Reactor
MOTOR
U/T1
V/T2
W/T3
R/L1
S/L2
T/L3
AWG mm
2
Nominal
(mm
2
)
Single-
core
≤ 10 ≤ 5.3 ≤ 5.5 1 Diagram A
≤ 2 ≤ 33.6 ≤ 38 4 Diagram B
Three-
core
≤ 12 ≤ 3.3 ≤ 3.5 1 Diagram A
≤ 1 ≤ 42.4 ≤ 50 4 Diagram B
NOTE
600V Insulated Unshielded Cable
1. The table above gives approximate wire size for
zero phase reactors, but the selection is ultimately
governed by the type and diameter of the cable;
that is,
the cable must fit through the center hole of
zero phase reactors.
2. When wiring, do not pass the grounding cable
through the zero phase reactor; only pass the
motor wire or power cable through the zero phase
reactor.
3. With longer motor cables the zero-phase reactor
can effectively reduce interference at the motor
output.
Diagram B
Please put all wires through four cores in series without
winding.
U/T1
V/T2
W/T3
R/L1
S/L2
T/L3
Power
Supply
Zero Phase Reactor
MOTOR