4-29
4-2 Wiring
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
  4
System Design
*1. The first value is for single-phase input and the second value is for 3-phase input.
*2. Use the same wire size for B1 and B2.
*3. Connect an OMRON power cable to the motor connection terminals.
Model (R88D-)
KT15H KT20H KT30H KT50H KT75H KT150H
Item
Unit
Power supply capacity kVA 2.3 3.3 4.5 7.5 11.0 22.0
Main circuit power 
supply input (L1 and 
L3, or L1, L2 and L3)
Rated current
A
14.2/
8.1
*1
11.8 15.1 21.6 32.0 58.0
Wire size − AWG14 AWG12 AWG10 AWG6
Screw size −−−M5 M6
Tightening torque
N·m
−−2.0 2.0 to 
2.4
2.2 to 
2.5
Control circuit power 
supply input (L1C and 
L2C)
Wire size − AWG18
Screw size −−−M5 M4
Tightening torque
N·m
−−2.0 1.3 to 
1.5
0.7 to 
0.8
Motor connection 
terminals (U, V, W, 
and FG) 
*2 *3
Rated current A 9.4 13.4 18.7 33.0 44.0 66.1
Wire size − AWG14 AWG12 AWG6 AWG4
Screw size −−−M5 M6
Tightening torque
N·m
−−2.0 2.0 to 
2.4
2.2 to 
2.5
Frame ground (FG) Wire size − AWG14 AWG12 AWG6 AWG4
Screw size − M4 M5 M6
Tightening torque
N·m
1.2 2.0 1.4 to 
1.6
2.4 to 
2.8
Dynamic brake 
resistance control 
terminals
Wire size −− AWG18
Screw size −
−
M5 M4
Tightening torque
N·m
1.3 to 
1.5
0.7 to 
0.8