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APPENDIX
(b) Selection example of MCCB and fuse
Use T class fuses or molded-case circuit breaker (UL 489 Listed MCCB) as the following table. The
T class fuses and molded-case circuit breakers in the table are selected examples based on rated
I/O of the servo amplifiers. When you select a smaller capacity servo motor to connect it to the servo
amplifier, you can also use smaller capacity T class fuses or molded-case circuit breaker than ones
in the table. For selecting ones other than Class T fuses and molded-case circuit breakers below,
refer to section 11.10.
Servo amplifier (100 V class)
MR-J4-10TM1/MR-J4-20TM1/MR-J4-40TM1
Servo amplifier (200 V class) (Note)
MR-J4-10TM/MR-J4-20TM/MR-J4-40TM/MR-J4-60TM (T)/
MR-J4-70TM (T)
MR-J4-60TM (S)/MR-J4-70TM (S)/MR-J4-100TM (T)
MR-J4-100TM (S)/MR-J4-200TM (T)
MR-J4-200TM (S)/MR-J4-350TM
MR-J4-500TM
MR-J4-700TM
MR-J4-11KTM
MR-J4-15KTM
MR-J4-22KTM
Note. "(S)" means 1-phase 200 V AC power input and "(T)" means 3-phase 200 V AC power input in the table.
Servo amplifier (400 V class)
MR-J4-60TM4/MR-J4-100TM4
MR-J4-200TM4
MR-J4-350TM4
MR-J4-500TM4
MR-J4-700TM4
MR-J4-11KTM4
MR-J4-15KTM4
MR-J4-22KTM4
(c) Power supply
This servo amplifier can be supplied from star-connected supply with grounded neutral point of
overvoltage category III (overvoltage category II for the 1-phase servo amplifier) set forth in IEC/EN
60664-1.
For the interface power supply, use an external 24 V DC power supply with reinforced insulation on
I/O terminals.
Molded-case circuit breaker (120 V AC)
NV50-SVFU-15A (50 A frame 15 A)
Molded-case circuit breaker (240 V AC)
NF50-SVFU-5A (50 A frame 5 A)
NF50-SVFU-10A (50 A frame 10 A)
NF50-SVFU-15A (50 A frame 15 A)
NF50-SVFU-20A (50 A frame 20 A)
NF50-SVFU-30A (50 A frame 30 A)
NF50-SVFU-40A (50 A frame 40 A)
NF100-CVFU-60A (100 A frame 60 A)
NF100-CVFU-80A (100 A frame 80 A)
NF225-CWU-125A (225 A frame 125 A)
Molded-case circuit breaker (480 V AC)
NF100-HRU-5A (100 A frame 5 A)
NF100-HRU-10A (100 A frame 10 A)
NF100-HRU-10A (100 A frame 10 A)
NF100-HRU-15A (100 A frame 15 A)
NF100-HRU-20A (100 A frame 20 A)
NF100-HRU-30A (100 A frame 30 A)
NF100-HRU-40A (100 A frame 40 A)
NF100-HRU-60A (100 A frame 60 A)
App. - 11
Fuse (300 V)
20 A
Fuse (300 V)
10 A
15 A
30 A
40 A
60 A
80 A
125 A
150 A
300 A
Fuse (600 V)
10 A
15 A
20 A
30 A
40 A
60 A
80 A
125 A
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