Mitsubishi Electric MR-J2S-A Instruction Manual page 285

13. OPTIONS AND AUXILIARY EQUIPMENT
(f) Varistors for input power supply (Recommended)
Varistors are effective to prevent exogenous noise and lightning surge from entering the servo
amplifier. When using a varistor, connect it between each phase of the input power supply of the
equipment. For varistors, the TND20V-431K and TND20V-471K, manufactured by NIPPON
CHEMI-CON, are recommended. For detailed specification and usage of the varistors, refer to the
manufacturer catalog.
Permissible circuit
Varistor
AC[V
TND20V-431K 275
TND20V-471K 300
D T
W E
d
Maximum rating
Surge current
voltage immunity
] DC[V] 8/20 s[A]
rms
350 10000/1 time
385 7000/2 time
Model
TND20V-431K
TND20V-471K
Note. For special purpose items for lead length (L), contact the manufacturer.
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Maximum limit
Rated
Energy
voltage
pulse
immunity
power
2ms[J] [W] [A]
195
1.0 100
215
D H T
Max. Max. Max.
6.4
21.5 24.5
6.6
Static
Varistor voltage
capacity
rating (range)
(reference
V1mA
value)
[V] [pF] [V]
710 1300 430(387 to 473)
775 1200 470(423 to 517)
[Unit: mm]
E (Note)L d W
1.0 min. 0.05 1.0
3.3
20 0.8 10.0
3.5