Mitsubishi Electric C Series Handling And Maintenance page 36

4Terminal cover
This is used to avoid exposure of charged parts. Different kinds are prepared for
each application such as large size terminal cover (TC-L), small size terminal
cover (TC-S), transparent terminal cover (TTC), Rear terminal cover (BTC), and
plug-in terminal cover (PTC).
● Quick set terminal cover
This cover can be attached simply by inserting into the mount hole on the circuit
breaker proper.
To disengage, slip off the cover stop projection by a finger or a screwdriver, then
pull out. (PTC is of screw fix type.)
❈ The models of NF125-SGW/HGW/RGW/UGW, NF160-SGW/HGW, NF250-
SGW/HGW/RGW/UGW are excluded.
NF125-SGW/HGW/RGW/UGW, NF160-SGW/HGW,
NF250-SGW/HGW/RGW/UGW
DSN125-SGW, DSN160-SGW, DSN250-SGW
Mounting
1) Put the U-form projection in the hole of the breaker and push
the terminal cover strongly to fasten it.
(Push the indicated place by the "
2) Fix the terminal cover with tapping screws (in 4 positions
with tightening torque 0.6 – 0.8 N·m).
Removing
1) Remove the tapping screws.
2) Push the tip of the U-form projection fully toward the "
mark by the screw driver or a finger tip and pull out the ter-
minal cover toward the " " mark.(Note)
When a small size terminal cover (TC-S) is used, cover up the conducting part of the ring-type terminal with insulation tube or by taping but not
exceeding surface A.
Circuit breaker
Ring-type terminal
L
Bus bar
L
" mark.)(Note)
"
Note. No insulation barriers are needed with terminal covers are attached.
Terminal cover
A
B
TC-L & TTC
lnsulator
TC-S
Tapping screw (2pcs.)
Enlarged
view of
U-form projection
(Note)
TCL-2GSW3
Note. except BTC or PTC
Small size terminal cover
Surface A
lnsulation tube
Exposed live parts
Limited condition
(mm)
NF30-CS, MB30-CS,
NV30-CS
NF32-SW,
50A frame, 63A frame
NF125-SGW/HGW
NF160-SGW/HGW
NF250-SGW/HGW
NF125-UGW/RGW
NF250-UGW/RGW
other 125A frame
other 160A frame,
250A frame
topper
projection
Quick-set terminal
cover
Mount hole
Tapping screw
Enlarged
view of
U-form projection
TCS-2GSW3
Wire
TC-L & TTC
A B L A
25 34.5 29.5 5
25 34.5 29.5 4.1
40 50.5 45.5 3.5
40 50.5 45.5 4.5
40 50.5 45.5 3.2
(Note)
TC-S
B L
14.5 12.0
13.5 11.0
14.0 11.0
15.0 12.5
13.5 11.0
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