11. OPTIONS AND AUXILIARY EQUIPMENT
11 - 60
11.10 Molded-case circuit breakers, fuses, magnetic contactors (recommended)
(1) For main circuit power supply
Always use one molded-case circuit breaker and one magnetic contactor with one servo amplifier. When
using a fuse instead of the molded-case circuit breaker, use the one having the specifications given in
this section.
Molded-case circuit breaker (Note 1) Fuse
Frame, rated current
Servo amplifier
Power factor
improving reactor is
not used
Power factor
improving reactor is
used
Voltage AC
[V]
Class Current [A]
Voltage AC
[V]
Magnetic
contactor
(Note 2)
MR-J4-10A(-RJ) 30 A frame 5 A 30 A frame 5 A
MR-J4-20A(-RJ) 30 A frame 5 A 30 A frame 5 A
10
MR-J4-40A(-RJ) 30 A frame 10 A 30 A frame 5 A 15
MR-J4-60A(-RJ) 30 A frame 15 A 30 A frame 10 A
MR-J4-70A(-RJ) 30 A frame 15 A 30 A frame 10 A
MR-J4-100A(-RJ) 30 A frame 15 A 30 A frame 10 A
20
S-N10
S-T10
MR-J4-200A(-RJ) 30 A frame 20 A 30 A frame 20 A 40
S-N20
(Note 3)
S-T21
MR-J4-350A(-RJ) 30 A frame 30 A 30 A frame 30 A 70
S-N20
S-T21
MR-J4-500A(-RJ) 50 A frame 50 A 50 A frame 50 A 125 S-N35
MR-J4-700A(-RJ) 100 A frame 75 A 60 A frame 60 A 150
MR-J4-11KA(-RJ) 100 A frame 100 A 100 A frame 100 A 200
S-N50
MR-J4-15KA(-RJ) 125 A frame 125 A 125 A frame 125 A 250 S-N65
MR-J4-22KA(-RJ) 225 A frame 175 A 225 A frame 175 A
240 T
350
300
S-N95
MR-J4-60A4(-RJ) 30 A frame 5 A 30 A frame 5 A 10
MR-J4-100A4(-RJ) 30 A frame 10 A 30 A frame 5 A 15
MR-J4-200A4(-RJ) 30 A frame 15 A 30 A frame 10 A 25
S-N10
S-T10
MR-J4-350A4(-RJ) 30 A frame 20 A 30 A frame 15 A 35
MR-J4-500A4(-RJ) 30 A frame 20 A 30 A frame 20 A 50
S-N20
(Note 3)
S-T21
MR-J4-700A4(-RJ) 30 A frame 30 A 30 A frame 30 A 65
S-N20
S-T21
MR-J4-11KA4(-RJ) 50 A frame 50 A 50 A frame 50 A 100 S-N25
MR-J4-15KA4(-RJ) 60 A frame 60 A 60 A frame 60 A 150 S-N35
MR-J4-22KA4(-RJ) 100 A frame 100 A 100 A frame 100 A
480 T
175
600
S-N50
Note 1. When having the servo amplifier comply with the IEC/EN/UL/CSA standard, refer to appendix 4.
2. Use a magnetic contactor with an operation delay time (interval between current being applied to the coil until closure of
contacts) of 80 ms or less.
3. S-N18 can be used when auxiliary contact is not required.
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