17
Wiring Chapter 2-2
2-2-4 Wiring around the Main Circuit
Wire Size, Terminal Screw, Screw Tightening Torque, and Molded-case
Circuit Breaker Capacities
For the main circuit and ground, always use 600-V polyvinyl chloride (PVC)
cables.
If any cable is long and may cause voltage drops, increase the wire size
according to the cable length.
3-phase 200-V AC Model
Model
CIMR-J7AZ-
Terminal symbol Terminal
screw
Screw
tightening
torque
(N•m)
Wire size
(mm
2
)
Re-
commended
wire size
(mm
2
)
Molded-
case circuit
breaker
capacity (A)
20P1 R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5 0.8 to 1.0 0.75 to 2 2 5
20P2 R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5 0.8 to 1.0 0.75 to 2 2 5
20P4 R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5 0.8 to 1.0 0.75 to 2 2 5
20P7 R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5 0.8 to 1.0 0.75 to 2 2 10
21P5 R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5 0.8 to 1.0 2 to 5.5 2 20
22P2 R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M3.5 0.8 to 1.0 2 to 5.5 3.5 20
24P0 R/L1, S/L2, T/L3, –, +1, +2,
U/T1, V/T2, W/T3
M4 1.2 to 1.5 2 to 5.5 5.5 30
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