Mitsubishi Electric MR-J5D User Manual page 134

Surge killer (recommended)
Use of a surge killer is recommended for AC relay, magnetic contactor or the like near the drive unit. Use the following surge
killer or equivalent.
OFF
ON
MC
Surge killer
Ex.
CR-50500 (Okaya Electric Industries)
Rated C [μF
voltage ±20 %]
AC [V]
250 0.5
Note that a diode should be installed to a DC relay or the like.
Maximum voltage: Not less than four times the drive voltage of the relay or the like
Maximum current: Not less than two times the drive current of the relay or the like
+
RA
Diode
6 OPTIONS AND PERIPHERAL EQUIPMENT
132
6.6 Noise reduction techniques
MC
SK
Relay
20 cm or less
R [Ω ±30 Test voltage
%]
50 (1/2W) Between
terminals: 625
V AC, 50 Hz/60
Hz 60 s
Between
terminal and
case: 2000 V
AC
50/60 Hz 60 s
-
Surge killer
Dimensions [Unit: mm]
Mounting band
15 ± 1
Soldered
6 ± 1
300 or more 48 ± 1.5
AWG 18 stranded wire
6 ± 1
16 ± 1
300 or more
φ3.6
(18.5 + 5) or less