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11. OPTIONS AND PERIPHERAL EQUIPMENT
11 - 34
11.7 Molded-case circuit breakers, fuses, magnetic contactors
CAUTION
Select a molded-case circuit breaker with a fast shut-off time to prevent smoke or
a fire.
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.
Servo amplifier
Molded-case circuit breaker (Note 1 and 4) Fuse
Magnetic
contactor
(Note 2)
Frame, rated current
Voltage AC
[V]
Class Current [A]
Voltage AC
[V]
Power factor
improving reactor is
not used
Power factor
improving reactor is
used
MR-JE-10B
30 A frame 5 A 30 A frame 5 A
240 T
10
300
S-N10
S-T10
MR-JE-20B
MR-JE-40B 30 A frame 10 A 30 A frame 5 A 15
MR-JE-70B
30 A frame 15 A 30 A frame 10 A 20
MR-JE-100B
(3-phase power
supply input)
MR-JE-100B
(1-phase power
supply input)
30 A frame 15 A 30 A frame 15 A 30
MR-JE-200B 30 A frame 20 A 30 A frame 20 A 40
S-N20
(Note 3)
S-T21
MR-JE-300B 30 A frame 30 A 30 A frame 30 A 70
S-N20
S-T21
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 since a current is applied to the coil until the contact closes) of
80 ms or shorter.
3. S-N18 can be used when auxiliary contact is not required.
4. Use a molded-case circuit breaker having the operation characteristics equal to or higher than Mitsubishi general-purpose
products.