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14. OPTIONS AND AUXILIARY EQUIPMENT
14.2.2 No-fuse breakers, fuses, magnetic contactors
Always use one no-fuse breaker and one magnetic contactor with one servo amplifier. When using a fuse
instead of the no-fuse breaker, use the one having the specifications given in this section.
Fuse
Servo amplifier
No-fuse breaker
Class
Current [A]
Voltage [V]
Magnetic contactor
MR-J2-10C
30 frame 5A
K5
10
MR-J2-20C
30 frame 5A
K5
10
MR-J2-40C
30 frame 10A
K5
15
MR-J2-60C
30 frame 15A
K5
20
MR-J2-70C
30 frame 15A
K5
20
MR-J2-100C
30 frame 15A
K5
25
S-N10
MR-J2-200C
30 frame 20A
K5
40
S-N18
MR-J2-350C
30 frame 30A
K5
70
250AC
S-N20
14.2.3 Power factor improving reactors
The power factor improving reactors improve the phase factor by increasing the form factor of servo
amplifier's input current.
It can reduce the power capacity.
The input power factor is improved to be about 90%. For use with a 1-phase power supply, it may be
slightly lower than 90%.
In addition, it reduces the higher harmonic of input side.
When using power factor improving reactors for two servo amplifiers or more, be sure to connect a power
factor improving reactor to each servo amplifier.
3-phase
200 to 230VAC
or
3-phase
380 to 480VAC
NFB
FR-BAL
Servo amplifier
MR-J2- C
R
S
T
X
Y
Z
L
1
L
2
L
3
MC
1-phase
200v to 230VAC
NFB
FR-BAL
Servo amplifier
MR-J2- C
R
S
T
X
Y
Z
L
1
L
2
L
3
MC
W
W1
C
RX S Y T Z
H
5
D1
Installation screw
D
5
[Unit : mm]
(Note)
Note. For the 1-phase 200V to 230V power supply, Connect the power
supply to L1, L2 and leave L3 open.
Dimensions [mm]
Servo amplifier
Model
W
W1
H
D
D1
C
Mounting
screw size
Terminal
screw
size
Mass
[kg (lb)]
MR-J2-10C/20C
FR-BAL-0.4K
135
120
115
59
45
-2.5
0
7.5
M4
M3.5
2.0 (4.4)
MR-J2-40C
FR-BAL-0.75K
135
120
115
69
57
-2.5
0
7.5
M4
M3.5
2.8 (6.17)
MR-J2-60C/70C
FR-BAL-1.5K
160
145
140
71
55
-2.5
0
7.5
M4
M3.5
3.7 (8.16)
MR-J2-100C
FR-BAL-2.2K
160
145
140
91
75
-2.5
0
7.5
M4
M3.5
5.6 (12.35)
MR-J2-200C
FR-BAL-3.7K
220
200
192
90
70 5
10
M5
M4
8.5 (18.74)
MR-J2-350C
FR-BAL-7.5K
220
200
194
120
100 5
10
M5
M5
14.5 (32.0)
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