Mitsubishi Electronics MDS-D-SVJ3 ユーザーズマニュアル

6 - 5

MDS-D-SVJ3/SPJ3 Series Specifications Manual

6-2 Selection of circuit protector and contactor

6-2-2 Selection of contactor

Select the contactor selection current that is calculated from the rated output and the nominal input voltage of the

drive unit as in the expression below. And then select the contactor whose conventional free-air thermal current

meets the contactor selection current.

Contactor selection current [A]=

(Contactor selection current for 200V input [A] / Nominal input voltage [V]) × 200 [V]

Selection of contactor for 200V input

Option part: A contactor is not prepared as an NC unit accessory, so purchase the part from your dealer, etc.

Unit type
MDS-D-SVJ3-

03NA

04NA

07NA

10NA

20NA

35NA

Rated output

0.3kW

0.4kW

0.75kW

1.0kW

2.0kW

3.5kW

Contactor selection
current for 200V input

2.5A

10A

15A

Selection example of contactor
(Mitsubishi Electric Corp.)

S-N12

-AC200V

S-N12

-AC200V

S-N12

-AC200V

S-N12

-AC200V

S-N18

-AC200V

S-N20

-AC200V

Conventional freeair thermal
current of the selection example of
contactor

20A

25A

32A

Unit type
MDS-D-SPJ3-

075NA

22NA

37NA

55NA

75NA

110NA

Rated output

0.75kW

2.2kW

3.7kW

5.5kW

7.5kW

11kW

Contactor selection
current for 200V input

15A

23A

31A

45A

Selection example of contactor
(Mitsubishi Electric Corp.)

S-N12-

AC200V

S-N18-

AC200V

S-N20-

AC200V

S-N25-

AC200V

S-N25-

AC200V

S-N35-

AC200V

Conventional freeair thermal
current of the selection example of
contactor

20A

25A

32A

50A

60A

1. Use an alternating contactor.

2. Select a contactor whose excitation coil does not operate at 15mA or less.

POINT