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Appendix 4 - 16
Appendix 4 EMC Installation Guidelines
MITSUBISHI CNC
< Surge protector for 400V >
R•A•V-BYZ series for 400V (for protection between lines)
(Note) Refer to the manufacturer's catalog for details on the surge protector's characteristics and
specifications, etc.
RCM Series for 400V (for protection between line and earth)
(Note) Refer to the manufacturer's catalog for details on the surge protector's characteristics and
specifications, etc.
Contact: Okaya Electric Industries Co., Ltd. Telephone: 03-3424-8120 (+81-3-3424-2110)
http://www.okayaelec.co.jp
Part name
Circuit voltage
50/60Hz
Maximum
tolerable
circuit
voltage
Clamp voltage
Surge
withstand
level
8/20µs
Surge
withstand
voltage
1.2/50µs
Electrostatic
capacity
Service
temperature
RAV-152BYZ-2A 3AC 430V 500V 1476V±10% 2500A 20kV 35pF -20 to 70°C
Part name Rated voltage
AC discharge
start voltage
(V) ±20%
Surge
withstand level
8/20µs (A)
Surge withstand
voltage
1.2/50µs (V)
RCM-781BUZ-4 3AC 250/430V AC700V±20% 2500A 2kV
RCM-801BUZ-4 3AC 290/500V AC800V±20% 2500A 2.32kV
2
8
.
5
r
1
5
.
5
r
1
1
1
r
1
2
8
r
1
2
0
0
r
3
0
0
41r1
4
.
5
r
0
.
5
UL-1015 AWG16
(1)Black (2)Black (3)Black
Outline dimension drawings
Circuit diagram
[Unit: mm]
U
UL-1015 AWG16
41r1
4.5r0.5
28.5r128r1
5.5r1
11r1
200r
30
0
Outline dimension Circuit diagram
(1)Black (2)Black (3)Black
Green
[Unit:mm]
The voltage between the 3 phases is
500Vrms or less
For neutral-point grounding