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11. OPTIONS AND AUXILIARY EQUIPMENT
11.12 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.
No-fuse breaker Fuse
Servo amplifier
Not using power
factor improving
reactor
Using power factor
improving reactor
(Note) Class Current [A]
Voltage
AC [V]
Magnetic
contactor
MR-J3-10B (1) 30A frame 5A 30A frame 5A 10
MR-J3-20B 30A frame 5A 30A frame 5A 10
MR-J3-20B1 30A frame 10A 30A frame 10A 15
MR-J3-40B 30A frame 10A 30A frame 5A 15
MR-J3-60B
MR-J3-70B
MR-J3-100B
MR-J3-40B1
30A frame 15A 30A frame 10A 20
S-N10
MR-J3-200B 30A frame 20A 30A frame 15A 40 S-N18
MR-J3-350B 30A frame 30A 30A frame 30A 70 S-N20
MR-J3-500B 50A frame 50A 50A frame 40A 125 S-N35
MR-J3-700B 100A frame 75A 50A frame 50A 150 S-N50
MR-J3-11KB 100A frame 100A 100A frame 75A
T
200 S-N65
MR-J3-15KB 225A frame 125A 100A frame 100A 250 S-N95
MR-J3-22KB 225A frame 175A 225A frame 150A 350
250
S-N125
MR-J3-60B4 30A frame 5A 30A frame 5A 10
MR-J3-100B4 30A frame 10A 30A frame 10A 15
MR-J3-200B4 30A frame 15A 30A frame 15A 25
S-N10
MR-J3-350B4 30A frame 20A 30A frame 20A 35
MR-J3-500B4 30A frame 30A 30A frame 30A 50 S-N18
MR-J3-700B4 50A frame 40A 50A frame 30A 65 S-N20
MR-J3-11KB4 60A frame 60A 50A frame 50A 100 S-N25
MR-J3-15KB4 100A frame 75A 60A frame 60A 150 S-N35
MR-J3-22KB4 225A frame 125A 100A frame 100A 175
600
S-N65
Note. When not using the servo amplifier as a UL/C-UL Standard compliant product, K5 class fuse can be used.
11.13 Power factor improving DC reactor
POINT
For the 100V power supply type (MR-J3- B1), the power factor improving DC
reactor cannot be used.
The power factor improving DC reactor increases the form factor of the servo amplifier's input current to
improve the power factor. It can decrease the power supply capacity. As compared to the power factor
improving AC reactor (FR-BAL), it can decrease the loss. The input power factor is improved to about 95%.
It is also effective to reduce the input side harmonics.
When connecting the power factor improving DC reactor to the servo amplifier, always disconnect P
1
and P
2
(For 11kW or more, disconnect P
1
and P). If it remains connected, the effect of the power factor improving DC
reactor is not produced.
When used, the power factor improving DC reactor generates heat. To release heat, therefore, leave a 10cm or
more clearance at each of the top and bottom, and a 5cm or more clearance on each side.