Mitsubishi Electric ZT15B/ZT30B/ZT40B/ZT60B/ZT80B/ZT100B/CZ-22S/CZ-30S/CZ-55S/CZ-77S/CZ-112S User Manual

Through type zero-phase current transformer

Split type zero-phase current transformer

Model ZT15B/ZT30B/ZT40B/ZT60B/ZT80B/ZT100B

Model CZ-22S/ CZ-30S/ CZ-55S/ CZ-77S/ CZ-112S

User’s Manual

・ This instruction manual is for zero-phase current transformer(not included) and split type zero-phase current transformer(not included) that use with measuring unit.

・ Be sure to read this instruction manual and the manual of measuring unit before use.

・ The following items for zero-phase current transformer(not included) are included in package. Check that no items are missing

① Through type zero-phase current transformer(ZT15B/ZT30B/ZT40B/ZT60B/ZT80B/ZT100B) × 1 or split type zero-phase current transformer(CZ-22S/ CZ-30S/ CZ-55S/ CZ-77S/ CZ-112S) × 1

② Instruction manual×1(CZ-22S/ CZ-30S/ CZ-55S/ CZ-77S/ CZ-112S)

1 ．

1.1

1.1 Precautions concerning working environment and conditions

Do not use the unit in any of the following places. Doing so may cause malfunctions or a reduction in service life.

・ Places where the ambient temperature exceeds the working temperature range(-5°C to +55°C).

・

Places where the humidity exceeds the humidity range (30% to 85%RH) or where condensation occurs.

・ Places with a lot of dust, corrosive gas, salt or oily smoke.

・ Place where the altitude exceeds 2000m.

・ Places exposed to direct sunlight.

・ Places where the out of the cabinet.

・

Places where metal pieces or inductive substances are laying around.

・

Places with strong electromagnetic field or noise.

・ Places with a lot of vibration or impacts.

・ Places where the unit may be exposed to rain or drops of water.

・ Places where the circuit with many harmonics.

・ Places where the daily average temperature exceeds 35°C.

1.2 Precautions concerning preparations before using the equipment

･

Use the unit in the specified usage environment and conditions.

1.3 Precautions concerning installation and connection

･

Check the current and voltage ratings of the equipment.

・

Don’t give this product vibration, a shock at the time of the transportation as much as possible.

Danger

・ Perform installation, disassembly, the wiring work after intercepting a power supply by all means . There might be the damage of an electric shock or the product.

Caution

・

Before installing and connecting the unit, read the instruction manual without fail. For safety, the unit shall be installed and connected by experts in electrical work.

・ Connect the wires carefully, checking the wiring diagram. Incorrect wiring can cause unit failures, fires, and electric shocks.

・ UL ／ c-UL listed corresponds, use the wires according to the following conditions and UL-listed crimp type terminals.

Single wire ： AWG24 ～ AWG18 ( φ 0.5

～ 1.0mm), Stranded wire ： AWG20 ～ AWG16( φ 0.8

～ 1.3mm

2 )

・ Connect the wires carefully, checking the wiring diagram. Incorrect wiring can cause unit failures, fires, and electric shocks.

・ Use an electric wire of the size of penetrating this ZERO PHASE CURRENT TRANSFORMER (ZCT) for primary side cable, do not use a non-insulation electric wire or a metal for a primary cable

・ Zero phase current transformer is high-precision magnetic material. Please use not to applied weight of primary through type electric wire and external force. Please hold not to applied weight of primary through type electric wire to zero phase current transformer. It might be cause of exterior destruction.

・

Use the crimp-type terminal for secondary terminal and test terminal. If inappropriate crimp-type terminal is used, a wire breakage or a contact failure may occur, which may cause a device malfunction, a failure, a burnout or a fire.

・ Please wire not give vibration and impact directly in secondary terminal.

・ Read the manual of measuring units which is used with zero-phase current transformer, and is used well, and follow it.

・ Use this zero-phase current transformer in cabinet certainly.

・ Confirm that a terminal is closed surely. The lack of clamping causes malfunction of the machinery, a fire, the electric shock.

・ Carry out the clamping of the crimp-type terminal lugs by prescribed torque. The excessive clamping becomes the ruination of a terminal and the screw.

・ As for the panel, it be assumed that it was given the following matters.

a) It is necessary to attach a key to the cabinet.

b) The structure that a power supply is intercepted automatically is necessary when opening a cabinet.

1.4 Precautions concerning in using

Caution

・ Use the unit within the rated range stated here. Using the unit out of the rated range may cause not only malfunctions or unit failure, but also fires or burnout.

・

Do not open the secondary side of the ZCT while the primary current is running.

1.5 Precautions concerning maintenance and inspection

・

Wipe off the surface dirt with tender cloth. Don’t let chemical cloths touch it for a long time, and do not wipe it with benzine or thinner.

・

Use a soft dry cloth to clean off dirt of the unit division surface.

・ Check for the following items to use this unit properly for long time.

（

1

）

Daily inspection

①

Does not this product have the damage?

（

2

）

Periodic inspection

（

Check once in 6 months to 1 year

）

・

Are not there installation, the slack of the screw?

②

Are not there an abnormal sound, bad-smelling fever?

1.6 Precautions concerning storage

・ When storing the unit, turn off power, disconnect cables and wires, and put them in vinyl bags or the like.

・ When storing the unit for a long time, avoid keeping it in the places shown below.

・ Places where the ambient temperature is out of the range from -10°C to

・ Places with a lot of dust, corrosive gas, salt or oily smoke.

・ Places with a lot of vibration or impact.

+60°C.

・ Places where the humidity exceeds the humidity range (5% to 95%RH) .

・ Places where the unit is exposed directly to rain, water droplets.

・ Places where metallic particles or inductive substances are laying around.

1.7 Precautions concerning disposal

Dispose this product appropriately in accordance with the national or community rule.

1.8

About packaging materials and this manual

For reduction of environment load, packaging materials are produced with cardboard, and this manual is printed on recycled paper.

2 ． Installation

● Parts names and installation

(1)ZT15B/ZT30/ZT40B

Hole

F

Secondary terminal （M3.5）

7.7

(2)ZT60B/ZT80B/ZT100B

Secondary terminal （M3.5）

Hole

● Parts names and installation

(3)CZ-22S/CZ-30S/CZ-55S/CZ-77S

Test terminal （M4）

Upper core

Short bar

Hole

Joining screws

B

B

Ａ k l

Secondary terminal （M4）

Lower core

Mounting bracket

(4)CZ-112S

Test terminal （M4）

Upper core

Short bar k t

Ａ k l

Hole

Joining screws

Secondary terminal （M4）

Lower core

Mounting bracket

E

Mounting bracket Mounting bracket

A

B

C

D

E

F

G

H

7 30

6

H

A

100

A

1) Primary wire pass hole.

2) Wiring secondary terminal.

*For the details, see the manual for measurement unit.

● Table of dimensions change

Dimensions [mm]

ZT 15B ZT 30B ZT 40B ZT 60B ZT 80B ZT 100B

48

15

68

30

85

40

140

60

160

80

185

100

29

62

46

37

82

66

43

92

81

73

150

46

82

169

48

93

190

50

15

70

25

30

90

50

40

100

50

Ｃ

Ｄ

Ｅ

Ｃ

Ｄ

Ｅ

Ａ

Ｂ

Ｃ

Ｄ

Ｅ

Ｆ

Ｇ

Ｈ

Ｊ

K

1) Unscrew the short bar and take off the one side of the short bar.

2) Loosen a joining screw of ZCT in right and left side alternation equality and take off upper core.

3) Put a primary wire through lower core. And Tighten a joining screw in right and left equality.

4) Tighten shorting bar.And wiring secondary terminal.

*For the details, see the manual for measurement unit.

● Table of dimensions change

Dimensions [mm]

CZ-22S CZ -30S CZ -55S CZ-77S CZ-112S

22 30 55 77 112

27 27 32 41 57

100

112

128

5

30

12

41

77

114

130

144

5

30

12

47

89

148

160

177

7

36

12

66

124

198

210

232

10

45

12

90

171

234

246

268

8

62

12

109

207

● Table of the biggest electric wire diameter and the tolerance current

Wiring method

Diameter of electric wire throughable

（ acceptable current (A)）

（ mm 2 ）

Wiring type

Number of electric wire

Type of current wire ZT 15B ZT 30B ZT 40B ZT 60B ZT 80B ZT 100B CZ-22S CZ -30 S CZ -55 S CZ-77S CZ-112S

1P2W

1P3W

3P3W

2

3

600V cable insulate by Vinyl （ IV cable ）

600V Closs-linked polyethylene insulated

Vinyl sheathed cable, Single （ CV cable ）

600V cable insulate by Vinyl （ IV cable ）

600V Closs-linked polyethylene insulated

Vinyl sheathed cable, Single （ CV cable ）

8

（61）

3 .

5

（44）

8

（61）

2

（31）

8

(61)

－

6 0 100 325

（217） （298） （650）

3 8 100 250

－

500

（162） （298） （556） （842）

－

3 8 100 250 500 800

（190） （355） （620） （920） （1285）

－

3 8 6 0 200 400 600

（190） （255） （545） ( 815 ) （1005）

3 8

(162)

6 0

(217) (

200

469 ) (

400

745 )

－

22

(1 30 )

6 0

( 255 )

150

( 455 )

325

( 725 )

600

( 1005 )

22

( 115 )

22

( 130 )

22

( 115 )

1 4

( 100 )

1 4

(88)

8

(72)

6 0

（217）

3 8

（190）

3 8

（162）

3 8

（190）

3 8

(162)

22

( 130 )

250

( 556 )

200

( 545）

200

( 469）

150

( 455）

150

( 395 )

150

( 455 )

500

( 842 )

500

（920）

500

( 842 )

400

（815）

325

( 650 )

325

( 725 )

－

1000

（1470）

－

1000

( 1470 )

－

3P4W

4

600V cable insulate by Vinyl （ IV cable ）

600V Closs-linked polyethylene insulated

Vinyl sheathed cable, Single （ CV cable ）

600

( 1005 )

* Please confirm dimensions. Because there is the case that I cannot penetrate by a finish external form, the transformation (curves) of the electric wire, Confirm dimensions.

3 ． Specification

Model

Hole diameter (mm)

Maximum voltage

(voltage to ground / line voltage)

Frequency

Rated short time current

(Peak value)

Measurement (installation) category

ZT15B

φ 15

AC 600V

50/60Hz

50kA

ZT30B

φ 30

(100kA)

ZT40B

φ 40

ZT60B

φ 60

ZT80B

φ 80

ZT100B

φ 100

CZ-22S

φ 22

CZ-30S

φ 30

CZ-55S

φ 55

CZ-77S

φ 77

CZ-112S

CAT Ⅲ

Pollution degree

Compatible specification

2

EMC: EN61326-1: 2013 UL: UL61010-1 Safety standard: EN-61010-1: 2010

Combination unit * This zero phase current transformer conforms to CE, UL in a condition to make combination use with EMU4-LG1-MB.

*1 When combine it with a ZCT (Model ： ZT60B,ZT80B,ZT100B),it confirms UL standard.

φ 112

4 ． Customer Service

HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, Japan

Please refer to "catalog" or “user’s manual (Details)” for more detail.