Mitsubishi MELDAS MDS-C1 - Appendix 3-6-4 Surge Protector

Appendix 3. EMC Installation Guidelines
A3 - 16
Appendix 3-6-4 Surge protector
Insert a surge protector in the power input section to prevent damage to the control panel or power
supply unit, etc. 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 R, A, V Series Okaya Electric Co., Ltd.
Part name
Circuit
voltage
50/60Hz Vrms
Maximum
tolerable
circuit
voltage
Clamp
voltage
(V) ± 10%
Surge
withstand level
8/20 µS (A)
Surge withstand
voltage
1.2/50 µS (V)
Electrostatic
capacity
Service
temperature
RAV-152BYZ-2A 3AC 430V 500V 1476V 2500A 20kV 35pF -20 to 70°C
Outline dimension drawings Circuit diagram
(2) Surge protector RCM Series Okaya Electric Co., Ltd.
Part name Rated voltage
AC discharge
start voltage
(V) ± 20%
Surge
withstand level
8/20 µS (A)
Surge withstand
voltage
1.2/50 µS (V)
RCM-781BUZ-4 3AC 250/430V 700VAC 2500A 2kV
RCM-801BUZ-4 3AC 290/500V 800VAC 2500A 2.32kV
For neutral point
grounding
Voltage across three phases is
500Vrms or less
Case
Leads
Wire
Resin
Treatment
Circuit diagram
Outline dimension drawings
Unit: mm
Tolerance: ±1.0
41
28.5
4.5
28
(1) (2) (3)
Black Black Black
Unit: mm
Tolerance: ±1.0
Refer to the manufacturer's catalog for details on the
surge protector's characteristics and specifications,