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Appendix 4. EMC Installation Guidelines 
 
 
 
 
 
A4 - 15
Appendix 4-6-4  Surge protector 
 
Insert a surge protector in the power input section to prevent damage to the control panel caused by the 
surge (lightning or sparks, etc.) applied on the AC power line. 
Use a surge protector that satisfies the following electrical specifications. 
 
(1)  Surge protector for 200V 
200V RAV BYZ Series (for protection between lines) 
Part name 
Circuit 
voltage 
50/60Hz 
Maximum 
tolerable 
circuit voltage
Clamp 
voltage 
Surge 
withstand 
level 
8/20 
S 
Surge 
withstand 
voltage 
1.2/50 
S 
Electrostatic 
capacity 
Service 
temperature
RAV-781BYZ-2 
3AC 250V 
300V 
783V
±
10%
2500A 
20kV 
75pF 
-20 to 70°C
(Note) Refer to the manufacturer's catalog for details on the surge protector's characteristics and specifications. 
 
28
.
1
5.
1
11
±
1
28
±
1
20
0
±
3
0 0
41±1
4.
0.
5
 
Outline dimension drawings
Circuit diagram
[Unit: mm] 
(1) Black
UL-1015 AWG16 
(2) Black (3) Black 
41±1 
28
±1
 
200
± 
30
 
5.
5±1
 
28
.5±
11
±
1
 
4
.5±
0.
5
 
 
 
200V R
AV BXZ Series  (for protection between lines) 
Part name 
Circuit 
voltage 
50/60Hz 
Maximum 
tolerable 
circuit voltage
Clamp  
voltage 
Surge 
withstand 
level 
8/20 
Surge 
withstand 
voltage 
1.2/50 
Electrostatic 
capacity 
Service 
temperature
RAV-781BXZ-4 
3AC 250V 
300V 
1700V
±
10%
2500A 
2kV 
75pF 
-20 to 70°C
(Note) Refer to the manufacturer's catalog for details on the surge protector's characteristics and specifications. 
 
28
.
1
5.
1
11
±
1
28
±
1
20
0
±
30 0
41±1
4.
0.
5
U
 
Outline dimension drawings Circuit 
diagram 
[Unit: mm] 
(1) Black (2) Black
(3) Black 
UL-1015 AWG16 
Green 
41±1
28±1 
200± 
30  0 
5.5±1 
28.5±1 
1
1±1 
4.5±0.5