No-Fuse Breakers, Fuses, Magnetic Contactors - Mitsubishi Electric MELSERVO-J3W Series Instruction Manual

11. OPTIONS AND AUXILIARY EQUIPMENT

11.6 No-fuse breakers, fuses, magnetic contactors

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.
When using two different types of motors in combination from a rotary servo motor, a linear servo motor or a
direct drive motor, select a molded-case circuit breaker, a fuse or a magnetic contactor temporarily assuming
that the same type of the motors are used for both axes. After selecting for the two types, use the larger molded-
case circuit breaker, fuse or magnetic contactor.
Total
Total output of
continuous
rotary servo
thrust of linear
motor
servo motor
300W or less
From over
120N or less
300W to 600W
From over From over
600W to 1kW 120N to 240N
From over From over
1kW to 2.0kW 240N to 480N
Note 1. Refer to appendix 4(8) to use the servo amplifier as a UL/CSA compliant product.
2. Be sure to use a magnetic contactor with an operation delay time of 80ms or less. The operation delay time is the time interval
between current being applied to the coil until closure of contacts.
Molded-case circuit breaker
Total output of
Not using
direct drive
power factor
motor
improving AC
reactor
30A frame 5A
100W or less 30A frame 10A
From over
30A frame 15A
100W to 250W
From over
30A frame 20A
250W to 838W
Current
Voltage
Using power
AC [V]
factor improving
AC reactor
30A frame 5A
30A frame 10A
240
30A frame 10A
30A frame 15A
11 - 40
Fuse
(Note 1) Current Voltage
Class [A] AC [V]
15
20
K5 300
20
30
(Note 2)
Magnetic
contactor
S-N10
S-N18