Omron G5 Series User Manual page 251

Leakage Breaker
• Select a leakage breaker for high frequencies and surge resistance.
• When selecting leakage breakers, remember to add the leakage current from devices other than the
motor, such as devices using a switching power supply, noise filters, inverters, and so on.
To prevent malfunction due to inrush current, we recommend using a leakage breaker of 10 times the
total of all current values.
• The leakage breaker is activated at 50% of the rated current. Select a leakage breaker with
approximately twice the capacity.
• For details on leakage breakers selection method, refer to the manufacturer's catalog.
• Because switching takes place inside the Servo Drives, high-frequency current leaks from the SW
elements of the Servo Drive, the armature of the motor, and the cables.
High-frequency and surge-resistant leakage breakers can prevent operation with high-frequency
leakage current because they do not detect high-frequency current.
When using a general leakage breaker, use three times the total of the leakage current given in the
following table as a reference value.
Servo Drive model
R88D-KP01H
R88D-KP02H
R88D-KP04H
R88D-KP08H
R88D-KP10H
R88D-KP15H
R88D-KP20H
R88D-KP30H
R88D-KP50H
Note These values vary greatly depending on the installation conditions of the motor power cable and the
measurement conditions. Use the values for reference only.
OMNUC G5-series (Pulse-train Input Type) AC Servomotors and Servo Drives User's Manual
Leakage current
Input power supply
Single-phase 200 V
3-phase 200 V
Single-phase 200 V
3-phase 200 V
Single-phase 200 V
3-phase 200 V
Single-phase 200 V
3-phase 200 V
Single-phase 200 V
3-phase 200 V
Single-phase 200 V
3-phase 200 V
3-phase 200 V
3-phase 200 V
3-phase 200 V
Increase per 10 m of cable
(Cable: 3 m)
0.83 mA
1.03 mA
0.84 mA
1.02 mA
0.96 mA
1.27 mA
1.01 mA
1.39 mA
0.88 mA
1.14 mA
0.96 mA
1.18 mA
1.53 mA
1.52 mA
1.39 mA
4 System Design
0.23 mA
0.3 mA
1.1 mA
0.93 mA
1.23 mA
4 - 27
4