Mitsubishi Electronics MR-J3 ユーザーズマニュアル

14 - 80

14. 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, 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.

Maximum rating

Permissible circuit

voltage

Surge current

immunity

Energy

immunity

Rated

pulse

power

Maximum limit

voltage

Static

capacity

(reference

value)

Varistor voltage

rating (range)

V1mA

Power
supply

voltage

Varistor

AC[V

rms

] DC[V] 8/20 s[A] 2ms[J] [W] [A]

[V] [pF]

[V]

100V class TND20V-431K

275

350

10000/1 time

195

710

1300

430(387 to 473)

200V class TND20V-471K

300

385

7000/2 time

215

775

1200

470(423 to 517)

400V class TND20V-102K

625

825

7500/1 time
6500/2 time

400

1.0 100

1650

500

1000(900 to 1100)

[Unit: mm]

Model

Max.

1.0

(Note)L

min.

0.05

1.0

TND20V-431K 6.4

3.3

TND20V-471K

21.5 24.5

6.6 3.5 20 0.8 10.0

TND20V-102K 22.5

25.5

9.5

6.4

Note. For special purpose items for lead length (L), contact the manufacturer.