Omron R88D-GT series User Manual

4-34
4-3 Wiring Conforming to EMC Directives
4
System Design
 Surge Absorbers
• 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 allowable surge
current and the energy.
• For 200-VAC systems, use surge absorbers with a varistor voltage of 620 V.
• The surge absorbers shown in the following table are recommended.
Note 1. Refer to the manufacturers' documentation for operating details.
Note 2. The surge immunity is for a standard impulse current of 8/20 μs. If pulses are wide, either
decrease the current or change to a larger-capacity surge absorber.
Dimensions
Equalizing Circuits
Manufacturer Model Surge immunity Type Remarks
Okaya Electric
Industries Co., Ltd.
R·A·V-781BWZ-4 700 V ±20% 2500 A
Block
Single-phase
100/200 VAC
Okaya Electric
Industries Co., Ltd.
R·A·V-781BXZ-4 700 V ±20% 2500 A
Three-phase
200 VAC
1 2 3
28
4.5
28.5 11
5.5
41
200
4.2 dia.
Three-phase BXZ Series
21
28
4.5
28.5 11
5.5
41
200
4.2 dia.
Single-phase BWZ Series
Three-phase BXZ Series
Single-phase BWZ Series

Omron R88D-GT series Specifications

General

Brand	Omron
Model	R88D-GT series
Category	Controller
Language	English