Selection Of Contactor - Mitsubishi Electric MDS-D-SPJ3 Specification Manual

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]
Unit type
MDS-D-SVJ3-
Rated output
Contactor selection
current for 200V input
Selection example of contactor
(Mitsubishi Electric Corp.)
Conventional freeair thermal
current of the selection example of
contactor
Unit type
MDS-D-SPJ3-
Rated output
Contactor selection
current for 200V input
Selection example of contactor
(Mitsubishi Electric Corp.)
Conventional freeair thermal
current of the selection example of
contactor
Option part: A contactor is not prepared as an NC unit accessory, so purchase the part from your dealer, etc.
1. Use an alternating contactor.
POINT
2. Select a contactor whose excitation coil does not operate at 15mA or less.
Selection of contactor for 200V input
03NA 04NA 07NA
0.3kW 0.4kW 0.75kW
2.5A 5A
S-N12 S-N12 S-N12
-AC200V -AC200V -AC200V
20A 20A
075NA 22NA 37NA
0.75kW 2.2kW 3.7kW
6A 9A
S-N12- S-N18- S-N20-
AC200V AC200V AC200V
20A 25A
MDS-D-SVJ3/SPJ3 Series Specifications Manual
6-2 Selection of circuit protector and contactor
10NA 20NA
1.0kW 2.0kW
7A 8A 10A
S-N12 S-N18
-AC200V -AC200V
20A 20A 25A
55NA 75NA
5.5kW 7.5kW
15A 23A 31A
S-N25- S-N25-
AC200V AC200V
32A 50A 50A
35NA
3.5kW
15A
S-N20
-AC200V
32A
110NA
11kW
45A
S-N35-
AC200V
60A
6 - 5