Appendix 2 Standard Tightening Torque For Connections - Mitsubishi Electric C Series Handling And Maintenance

APPENDIX 2 Standard tightening torque for connections

Rear connection, Flush
Bolt Stud
Screw A
Insulation ring
Fig.1
Bar Stud
Screw E
Screw A
Insulation base
Fig.3
Table List of standard tightening torque for connections (Note 1)
Type
MCCB
NF30-CS, MB30-CS
NF32-SW
NF63-CW, NF63-SW, NF63-HW
MB30-SW, MB50-CW, MB50-SW
NF125-CW, NF125-SW, NF125-HW
NF125-RW, MB100-SW
NF160-SW, NF160-HW, NF250-CW
NF250-SW, NF250-HW, MB225-SW
NF125-SGW, NF125-HGW
NF160-SGW, NF160-HGW
NF250-SGW, NF250-HGW
NF125-RGW, NF125-UGW,
NF250-RGW, NF250-UGW
NF400-CW, NF400-SW, NF400-SEW
NF400-HEW, NF400-REW
NF400-UEW(3P)
NF400-UEW(4P)
NF630-CW, NF630-SW
NF630-SEW, NF630-HEW
NF630-REW
NF800-CEW, NF800-SDW, NF800-SEW
NF800-HEW, NF800-REW
NF800-UEW (Note 2)
NF1000-SEW
NF1250-SEW, NF1250-SDW
NF1250-UR (Note 2)
NF1600-SEW, NF1600-SDW
Note 1) The suitable range of tightening torque shall be the corresponding numerical values in the table above ±20%. For detail, please refer to the handling
procedures to be found in the package.
2) No plug-in type.
87
Screw A
Nut C
Bolt stud
Connection
conductor Fig.2
Connection
Screw A
conductor
Screw E
Bar stud
Fig.4
Connection
Fig. 1
Screw A
ELCB
Size Torque Size Torque Size Torque Size Torque Size Torque Size Torque Size Torque
NV30-CS, MN30-CS M4✕0.7
NV32-SW, NV63-CW
M4✕0.7
NV63-SW, NV63-HW
NV125-CW, NV125-SW
NV125-HW
—
NV100-SEP, NV100-HEP
NV125-RW
NV250-CW, NV250-SW
NV250-HW, NV250-SEW,
—
NV250-HEW, NV250-RW
— —
NV400-CW, NV400-SW
NV400-SEW —
NV400-HEW, NV400-REW
— —
NV630-CW, NV630-SW
—
NV630-SEW, NV630-HEW
NV800-SEW, NV800-HEW —
NV1000-SB (Note 2)
—
NV1200-SB
— —
Nut C
Bolt stud
Insulation
Connection
base
conductor
(NV100-HB)
Plug-in
Nut D
Bolt Stud
Fig.5
Plug-in terminal base
Rear connection
Bolt stud Bar stud
Fig. 2 Fig. 3
Nut C
Screw A
— M6 2 — —
1 M6 2 — —
— — — M6 4
— — — M6 10
— — — M6 10
— — — M8 20
— — — M10 30
— — — M10 30
— — — M10 30 2-M12
— — — 4-M8 12 2-M12
— — — 4-M8 12 4-M10
Drawout
Screw F
Connection conductor
Fig.7
Bar Stud
Bolt stud
Connection
Plug-in terminal base
conductor
Plug-in type
Bolt stud Bar stud
Fig. 4 Fig. 5 Fig. 6
Screw E Nut D Screw E
— — — — —
— — M6 2 —
M8 12 M8 5 —
M8 12 — — M8
M8 12 — — M8
M12 45 — — M12
M12 45 — — M12
M12 45 — — M12
45 — — 2-M12
45 — — 2-M12
25 — — —
Bar stud
Connection
conductor
Bar stud
Screw E
Fig.6
Torque in N·m
drawout type
Bar stud
Fig. 7
Screw F
— — —
— — —
— — —
12 — —
12 — —
45 — —
45 — —
45 — —
45 — —
Same as the
45
plug-in type
— — —