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M800W/M80W Series Connection and Setup Manual
41 Appx.4: EMC Installation Guidelines
41.6.3 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 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.
(1) Part name: RSPD-250-U4
Manufacturer: OKAYA ELECTRIC INDUSTRIES
Rated Voltage
DC Breakdown
(50/60Hz)
250VAC
700V±25%
(Three phase)
Outline drawing
Resin
Extraction wire
Case
Circuit drawing
1
Voltage protection
voltage
level
1.3kV
2
3
Normal discharge
Maximum discharge
current
current
8/20μs
8/20μs
2.5kA
5kA
635
Surge current life
Approximately 300 times
8/20μs-1kA
IB-1501268-K
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