Omron OMNUC G5 R88M-K series User Manual page 193

Surge Absorber
 Use surge absorbers to absorb lightning surge voltage and abnormal voltage from power supply
input lines.
 When selecting surge absorbers, take into account the varistor voltage, the surge immunity and
the energy tolerated dose.
 For 200-VAC systems, use surge absorbers with a varistor voltage of 620 V.
 The surge absorbers shown in the following table are recommended.
Manufacturer
Okaya Electric
Industries Co.,
Ltd.
Okaya Electric
Industries Co.,
Ltd.
Note 1. Refer to the manufacturers' catalog for operating details.
Note 2. The surge immunity is for a standard impulse current of 8/20 s. If pulses are wide, either
decrease the current or change to a larger-capacity surge absorber.
External Dimensions
For single-phase (BWZ series)
φ4.2
1 2
41
Equalizing Circuits
For single-phase (BWZ series)
(1) (2)
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
Model
R•A•V-781BWZ-4
R•A•V-781BXZ-4
For 3-phase (BXZ series)
(1) (2) (3)
4-3 Wiring Conforming to EMC Directives
Surge immunity Type
2500
700 V  20%
A
Block
2500
700 V  20%
A
For 3-phase (BXZ series)
φ4.2
1 2 3
41
Comment
Single-phase 100/
200 VAC
3-phase 200 VAC
4
4-28