Zero Phase Reactor; Rf220X00A; 600V Insulated Unshielded Cable - Delta VFD-EL-W Series User Manual

Appendix B Accessories VFD-EL-W

B.2.2 Zero Phase Reactor

RF220X00A

Recommended Wire Size
Cable
type
AWG mm
2
(Note)
≤ 10 ≤ 5.3
Single-
core
≤ 2 ≤ 33.6
≤ 12 ≤ 3.3
Three-
core
≤ 1 ≤ 42.4
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.
B-4
Wiring
Qty.
Nominal
Method
(mm )
2
≤ 5.5 1 Diagram A
≤ 38 4 Diagram B
≤ 3.5 1 Diagram A
≤ 50 4 Diagram B
Diagram A
Please wind each wire four times around the core. The
reactor must be put as close to the inverter output as
possible.
R/L1
U/T1
Power
S/L2 V/T2
Supply
T/L3
W/T3
Diagram B
Please put all wires through four cores in series without
winding.
Power
R/L1 U/T1
S/L2 V/T2
Supply
T/L3 W/T3
UNIT: mm [inch]

Zero Phase Reactor

MOTOR
Zero Phase Reactor
MOTOR