Mitsubishi Electric MELFA CR800 Series Instruction Manual page 144

8 APPENDIX
（3） Surge Absorber
Make sure that the surge does not directly enter the AC line of the general-purpose stabilized power supply
(userprepared) supplying power to the control unit and DIO.
Select a product equivalent to or higher than the following products for the surge absorber.
Refer to the manufacturer catalog for detailed characteristics, outline and connection methods of the surge
absorber.
Type：RSPD-250-Q4
Manufacturer: OKAYA ELECTRIC INDUSTRIES CO., LTD.
Rated Voltage DC Breakdown
(50/60HZ)
AC250V(1 Phase)
・Outline drawing
8-134 Appendix 4: EMC installation guideline
Voltage
voltage protection level
1,3kV
700V±25%
Normal Maximum
discharge discharge
current current
8/20μs 8/20μs
2,5kA 5kA
・Circuit drawing
Surge current
life
8/20μs-1kA
Approximately
300 times