Mitsubishi Electric MR-J4-10A(-RJ) Instruction Manual page 501

11. OPTIONS AND PERIPHERAL EQUIPMENT
(f) Varistor 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, TND20V-471K and TND20V-102K, manufactured by
NIPPON CHEMI-CON, are recommended. For detailed specification and usage of the varistors,
refer to the manufacturer catalog.
Power
supply Varistor
voltage
AC [Vrms] DC [V]
200 V
TND20V-431K
class/
100 V
TND20V-471K
class
400 V
TND20V-102K
class
D
W E
φd
Maximum rated
Surge
Permissible circuit
current
voltage
immunity
8/20 µs [A]
10000/1
275 350
time
7000/2
300 385
time
7500/1
time
625 825
6500/2
times
T
Model
TND20V-431K
TND20V-471K
TND20V-102K
Note. For special purpose items for lead length (L), contact the manufacturer.
Maximum
voltage
Energy Rated pulse
immunity power
[A]
2 ms [J] [W]
195
1.0 100
215
400 1.0 100 1650
D H
Max. Max. Max.
6.4
21.5 24.5
6.6
22.5 25.5 9.5
11 - 98
limit
Static
Varistor voltage rating
capacity
(range)
(reference
V1 mA
value)
[V]
[pF]
710 1300 430 (387 to 473)
775 1200 470 (423 to 517)
560 1000 (900 to 1100)
L φ d
T E
Min. ± 0.05
± 1.0
(Note) or less
3.3
20 0.8
3.5
6.4 20 0.8
[V]
[Unit: mm]
W
1.0 or
less
10.0
10.0