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Terminal
Type
All
Main
Contactor
Contact
Contactor
Relay
Aux.
Contact
Coil
All
Main
Thermal
Contact
Relay
Aux.
Contact
・(※1) The screw size is M4, but the diameter of the crimp terminal penetration part is about φ2.3 mm,
so M3 and M3.5 crimp terminals can be used.
・(※2) The proper tightening torque of the main terminal (UZ-32) when use the mounting unit is 1.6 (N・m).
・There is a hole for screw tightening in the cover of the terminal part, but some terminals,such as auxiliary
contact terminals, cannot penetrate the hole with a screwdriver with a large shaft diameter and cannot be
tightened. The wiring work remove the terminal cover, or use a thin diameter shaft screwdriver.
(φ5.5 or less recommended).
・When wiring using round crimp terminals, it is necessary to remove the cover of the terminal part to
remove the screw from the main body once. The economy Magnetic Contactor has an integrated
structure between the main body cover and the terminal cover, and it is difficult to remove the cover,
so we will deliver it with the cover removed. When using a round crimp terminal, attach the cover after
the wiring work is completed.(Please refer to the technical manual)
■ About coil terminal
The standard HC series has coil terminals in two places of one on the line side and one on the load side, and both
can be used. (Line side terminal and load side terminal can be used together) Since the pins with the same
terminal number between the line side and load side are electrically short-circuited, do not apply voltage between
A1-A1 and A2-A2. A short-circuit accident occurs. In order to prevent incorrect wiring, the coil terminal part on
the load side is protected by a lid, and the wiring cannot be done without removing the lid.
A1
Line
Load
A1
■About screw
Screws are directional. Please pay attention to the mounting direction.
Installing screws in the wrong direction, may lead to abnormal
overheating of the terminals or, falling, or disconnection of the wiring.
Table2. Wire size and tightening torque
Model
XC4M,HC8M,HC10M
HC8
HC10
HC20
HC35
HC55
XC4,HC8～HC20
HC35,HC55
XC4,HC8～HC55
TRC12M
TRC12
TRC32(～RC27A)
TRC32(RC34A)
TRC63
TRC12
TRC32,TRC63
A2
Table3. Coil terminal connectable position combinations
A1
A2
A1
A2
A2
Apply wire
Screw
Stranded
size
AWG
wire (mm
M3.5
18～12
1.25～2
M3.5
18～10
M3.5
16～10
1.5～10
M4
14～8
2.5～10
M5
12～8
2.5～10
M6
10～4
M3.5
18～12
0.75～2.5
(※1)
18～12
0.75～2.5
(※1)
18～12
0.75～2.5
M3.5
18～12
1.25～2
M3.5
24～10
1.25～2
M4
18～8
M5
18～8
M6
18～6
M3.5
18
M3.5
18
A1
A2
Good
Max.
width of
Recommended
solderless
terminal
2
)
(mm)
7.6
1～6
7.6
7.6
9.6
12.8
6～25
14
7.6
7.6
7.6
7.6
7.6
1～6
12
1.1 (※2)
6～10
12
2.2 (※2)
10～16
15
1
7.6
1
7.6
A1
A2
Good
Bad
torque
(N･m)
1.1
1.1
1.1
2.2
2.9
4.0
1.1
1.1
1.1
1.1
1.1
3.9
1.1
0.9
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