Hitachi H Series Manual de usuario
MAGNETIC
CONTACTOR/STARTER
Instruction Manual
(S-11-017-C) ⑰
Introduction
This instruction manual is related to installation, wiring using and maintenance of Contactor/Starter.
Notes of Safety
Before using this Contactor/Starter, you should first throughly read this manual, in order to
understand appropriate usage and handling.
●Don’t touch electric connecting terminal, or you should be damaged by electric-shock.
●Check the wire is anenergized at the time of maintenance, or you should be damaged by electric-
shock.
●Make sure of clearance written by this manual at the time of installation, or you should be damaged
by electric-shock.
●Tighten screws by appropriate tightening torque, or there is in danger of fire.
1．Before installation
Before installation, be sure whether Type, Rating current, Coil voltage, Frequency marked on the
name plate are agreed with ordered specifications and whether there are no fallen off parts or any
damaged portions.
2．Installation
At the time of installation, secure appropriate space shown by this manual.
The Contactor / Starter must be secured on an upright panel or wall arranged to prevent from
excessive dust, oil-mist and vibration so that the line end of contactor becomes top.
3．Wiring
Wiring must be used appropriate size of electric wire, and tighten appropriate tightening torque
shown by this manual.
Table1 clearances at installation
！
DANGER
！
CAUTION
Frame
Clearance (minimum : mm)
Mounting space
H series
HS series
RH series
A
B
C
D
E
C
A
B
Metal or ground
D
E
insulator
Metal or ground
Magnetic
Contactor
dimension
of switch
C
A
B
Metal or ground
D
E
insulator
Metal or ground
Magnetic
Starter
dimension
of switch
XS4
5
10
0
10
0
8～50
5
15
5
10
5
65C
25N, 50N
※1
15
5
10
5
80C～150C
60N, 120N
※1
15
10
10
10
200C,250C
200N
※1
25
10
10
10
300C,400C
※1
30
10
10
10
600C,800C
※1
50
10
10
10
Note : ※is allowed for 0. In case of separate mounting for Thermal Relay…A:10 B:15 C:5 D:15 E:5
Send to end-user this
instruction manual
certainly.
Table2 Wire size and tightening torque
Even a terminal screw of the same size is different from Contactor and Thermal Relay.
Please be careful so that screws are not replaced on the occasion of wiring.
When do not use an appropriate screw, it is not tightened, and a case may be damaged.
4．Using
Normal service condition
(1) Ambient temperature ：－5℃to 40℃(usable up to 50℃without enclosure)(HS series is 55℃)
(2) Relative humidity ：45％to 85％
(3) Altitude ：2,000ｍor lower
(4) Atmosphere ：must be free from corrosive gas, combustible gas, dust, vapor, salt, etc.
●Don’t touch electric connecting, or you should be damaged by electric-shock.
●Check the wire is anenergized at the time of maintenance, or you should be damaged by electric-shock.
●Don’t operate with opening a cover of the contactor, or short circuit should be made.
●At using for reversible type, electrical interlock must be needed.
●A metallic case must be connected to the earth.
●For thermal overload relay, setting current must be adjusted to rating of motor by turning of current
adjusting knob. Don’t over-turn adjusting knob.
5．Maintenance
●Check whether screw are fully tightened. If a loose, tighten
more.
●Check whether foreign substances such as a washer, wire
waste etc., have infillrated the contactor by manual
operation.
●During trial running, check whether there occurs abnormal
noise, abnormal smell or abnormal arcing etc.
●Check whether contacts are abnormally worn after loosed
screws and removed cover of the contactor.
●Eliminate dropped foreign substances such as dust, chip etc.
on each portion.
●Don’t paint oil on cores of the contactor.
●Even if contacts are somewhat blackened, no trouble occurs.
●Even if only one contact of three phase is worn, the contacts of all phases must be replaced at the same
time.
At replacing, check the wire is anenergized.
●Dust from worn contact should be eliminated after removed the worn contact.
Fig1 Operative portion of Thermal Relay
Test trip lever
Adjusting knob
Reset button
Resetting performed
without opening
the cover.
Frame(Contactor)
Thermal Relay
screw
size
max. wire
size (mm2)
max. width
of solderless
terminal
(mm)
Appropriate
tightening
torque
(N･m)
main circuit
terminals
H series
HS series
RH series
1E, 2E
XS4, 8, 10
12B
M3.5
2(φ1.6)
7.8
0.8～1.0
20B
M4
3.5(φ2)
9
1.2～1.5
20
M4
3.5(φ2)
10.5
1.2～1.5
25
25B
M5
8(φ2.6)
10
2.5～3.5
50B
M5
14
13.0
2.5～3.5
35, 50
M5
14
13.9
2.5～3.5
25N
M5
22
16.5
2.5～3.5
65C
50N
80B
M6
22
16.5
4.0～5.0
80C
60N
M6
60
22
4.0～5.0
100C,125C
150B
M8 Bolt
60
22
10～14
150C
120N
M8 Bolt
80
27
10～14
200N
M8 Bolt
150
37
10～14
200C,250C
400B(RC240A or lower)
M10 Bolt
150
37
15～25
300C,400C
400B(RC240A upper)
M12 Bolt
200
44
35～45
600C
M12 Bolt
325
55
35～45
800C
M16 Bolt
325
55
35～45
aux. and coil
terminals
8C～400C
XS4～50
25N～200N
M3.5
2(φ1.6)
7.8
0.8～1.0
600C,800C
aux.；M4
coil;M3.5
3.5(φ2)
2(φ1.6)
9
7.8
1.2～1.5
0.8～1.0
aux. terminal of
relay
8C～600C
XS4～50
12B～400B
M3.5
2(φ1.6)
7.8
0.8～1.0
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