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AC Servomotors/Servo Drives 1S-series Instruction Manual
Terminal Block Wire Sizes
The following tables show the rated current that flows to the terminal block on the Servo Drive
and the applicable wire sizes.
Wire Sizes for 200-VAC Input Model: R88D-1SAN
H-ECT
Wire Sizes for 200-VAC Input Model: R88D-1SAN
H-ECT
Item
Unit
Model (R88D-1SAN)
02H-ECT
04H-ECT
08H-ECT
Power supply capacity
kVA
0.6
1.0
1.4
Main circuit power
supply input
*1
*1. For single-phase, connect between any two phases out of the following: L1, L2, and L3.
Rated
current
Arms
2.7/1.5
*2
*2. The first value is for single-phase input power and the second value is for 3-phase input power.
4.6/2.7
*2
7.3/4.0
*2
Wire size
---
0.5 to 1.5 mm
2
0.75 to 1.5 mm
2
1.5 mm
2
Control circuit pow-
er supply input
Wire size
---
0.5 to 1.5 mm
2
Motor connection
terminals
Rated current Arms
1.5
2.5
4.6
Wire size
---
0.5 to 1.5 mm
2
0.75 to 1.5 mm
2
Protective
earth
Wire size
---
2.5 mm
2
or larger
Screw size
---
M4
Tightening
torque
N·m
1.2
Item
Unit
Model (R88D-1SAN)
10H-ECT
15H-ECT
20H-ECT
30H-ECT
Power supply capacity
kVA
2.0
2.5
3.6
4.7
Main circuit power
supply input
*1
*1. For single-phase, connect between any two phases out of the following: L1, L2, and L3.
Rated
current
Arms
5.8
15.7/9.0
*2
*2. The first value is for single-phase input power and the second value is for 3-phase input power.
13.0 15.9
Wire size
---
1.5 mm
2
4.0 to 6.0 mm
2
Control circuit pow-
er supply input
Wire size
---
0.5 to 1.5 mm
2
Motor connection
terminals
Rated current Arms
7.7
9.7
16.2
22.3
Wire size
---
1.5 mm
2
2.5 to 6.0
mm
2
6.0 mm
2
Protective
earth
Wire size
---
2.5 mm
2
or
larger
4.0 mm
2
or larger
*3
*3. The wire size of protective earth must be greater than or equal to the wire size of main circuit power
supply input.
Screw size
---
M4
Tightening
torque
N·m
1.2
