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Appendix 2 EMC Installation Guidelines
MITSUBISHI CNC
170
Appendix 2.6.3 Surge Absorber
Make sure that the surge does not directly enter the AC line of the general-purpose stabilized power supply (user-
prepared) supplying power to the control unit and DIO. Select the following product or equivalent for the surge absorber.
Refer to the manufacturer catalog for detailed characteristics, outline and connection methods of the surge absorber.
(1) Part name: RAV-781BYZ-2
Manufacturer: OKAYA ELECTRIC INDUSTRIES
(2) Part name: RAV-781BXZ-4
Manufacturer: OKAYA ELECTRIC INDUSTRIES
Circuit voltage
50/60Hz Vrms
Max. tolerable
circuit voltage
Clamp voltage
V±10%
Surge withstand
level 8/20μs
Surge electrical
discharge start
voltage 1.2/50μs
Static capacity
Working
temperature
range
250V 3φ 300V 783V 2,500A 20kV 75pF -20 to +70°C
Circuit voltage
50/60Hz Vrms
Max. tolerable
circuit voltage
Clamp voltage
V±10%
Surge withstand
level 8/20μs
Surge electrical
discharge start
voltage 1.2/50μs
Static capacity
Working
temperature
range
250V 3φ 300V 700V 2,500A 2kV 75pF -20 to +70°C
41 ± 1
(a) (b) (c)
㸸
mm
UL-1015 AWG16
Outline drawing
Black Black Black
Circuit drawing
Unit
41
±
1
mm
UL-1015 AWG16
Outline drawing
(a) Black (b) Black (c) Black
Circuit drawing
Unit :
Green