Mitsubishi Electric C Series Handling And Maintenance page 50

How to attach cassette accessories
•
For mounting and dismounting the cassette accessories, be sure to drop voltage of the circuit breaker and the
accessories to zero as electrification can result.
Burning can take place should the circuit breaker operation for breaking.
• Never attach while the handle is at ON, OFF position. The parts are broken and can cause failure.
1Before opening the cover, press the trip button, and loosen
the screw of the breaker cover.
3If any middle cover or other accessories are attached, remove them before mounting the cassett accessory. (To the circuit
breaker having a middle cover, be sure to attach the middle cover while no cassette accessories are mounted.)
[Models having the middle cover]
CAUTION
Trip
➀
➁
Don't move the cover
from side to side.
NF50-HRW(40, 50A)
NF125-SW, NF125-HW, NF125-RW, NF125-UW
NV125-SW, NV125-HW,
NF100-HEP, NV100-HEP
NF250-HEW, NF250-UW
NV250-HEW
NF800-HEW, NF800-REW, NF800-UEW
NV800-HEW
2Then open the cover.
Middle cover
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