Hitachi H Series User manual

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

Metal or ground

insulator

Metal or ground

Magnetic

Contactor

dimension

of switch

Metal or ground

insulator

Metal or ground

Magnetic

Starter

dimension

of switch

XS4

8～50

65C

25N, 50N

※1

80C～150C

60N, 120N

※1

200C,250C

200N

※1

300C,400C

※1

600C,800C

※1

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

3.5(φ2)

1.2～1.5

3.5(φ2)

10.5

1.2～1.5

25B

8(φ2.6)

2.5～3.5

50B

13.0

2.5～3.5

35, 50

13.9

2.5～3.5

25N

16.5

2.5～3.5

65C

50N

80B

16.5

4.0～5.0

80C

60N

4.0～5.0

100C,125C

150B

M8 Bolt

10～14

150C

120N

M8 Bolt

10～14

200N

M8 Bolt

150

10～14

200C,250C

400B(RC240A or lower)

M10 Bolt

150

15～25

300C,400C

400B(RC240A upper)

M12 Bolt

200

35～45

600C

M12 Bolt

325

35～45

800C

M16 Bolt

325

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)

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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