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Your contact: +49 - 212 8804-0 • info@reo.de

Series IN-D

Differential current transformer

Series IN-D

Unique Selling Point


  • Measurement from 25 to 400 Hz
  • Nanocrystalline core
  • Transformer for measuring of differential current
  • High-quality UL listed insulating materials (e.g. UL94-V0)
  • Safe electrically isolated primary and secondary circuits
  • Robust housing designs (for horizontal/vertical mounting)
  • Variable connections
  • Wide range of housings with various push-through openings
  • Residual current range 2 - 50 A

Description


A differential current transformer permits the measurement of differential current in single-phase or three-phase supply cables or in individual lines. Both current-carrying conductors (outward conductor and return conductor) are led through the current opening of the current transformer. The current measurement is performed by comparing the two conductors.

Any difference is displayed at the output of the differential current transformer. The use of highly permeable materials permits a typical current deviation of 10 mA upwards. The wide opening allows the supply lines, with the exception of the earthing conductor, to be led through directly. High sensitivity to current enables measurement in several stages:

  • stage 1: Notice of a malfunction
  • stage 2: Alarm
  • stage 3: Switching off

 

Application area

  • Industry
  • Renewable energy sources
  • Metrology and testing techniques
  • Energy, automation and building technology


Technical Data


  • Primary rated current : 2 - 50 A

Mode of operation

Your contact: +49 - 212 8804-0 • info@reo.de

Series IN-D

Differential current transformer

Technical data

Type IN-D

2

4

8

20

30

40

30

40

50

 

Design A

Design B

Design C

ΔIPN 

Primary rated current

0,1 - 1

0,1 - 2

0,1 - 4

0,1 - 10

[A]

ΔImaxPN

Max. primary rated current

2

4

8

20

30

40

30

40

50

[A]

ITK

Thermal short-time current

0,5

3,6

9

[kA]

IaN

Rated output current

2

4

4

20

10

5

20

16,67

10

[mA]

Psek

Power

0,004

0,008

0,016

0,030

0,015

0,06

0,05

0,06

[VA]

KN

Ratio

500

1000

500

1000

2000

500

600

1000

[1:]

URB

Load voltage

2,0

4,0

1,5

3,0

6,0

[V]

RB

Load resistance

1000

500

1000

75

300

600

150

180

600

[Ω]

FU

Measuring accuracy 50 Hz

≤ 1,0

[%]

TA

Ambient temperature

-10 bis +50

[°C]

f

Frequency range

25 bis 400

[Hz]

VP

Isolation

3

[kVac]

General data

A

Connection

Flat connection 6,3 x 0,8 / Plug MKS 1853 / Clamp 1,5 mm2

 

TS

Storage temperature

-25 up to +85

[°C]

RS

Coil resistance

11

46

4,5

19

65

5,5

6,5

21

[Ω]

m

Weight

0,068

0,070

0,278

0,290

0,280

0,290

[kg]

 

Standards

EN60044-1

 

CTI

Tracking resistance               

Housing / resin 550/660M or 400/600M

 

dCp

Creepage distance

18

8

18

[mm]

dCI

Air distance

16

7

16

[mm]

Your contact: +49 - 212 8804-0 • info@reo.de

Series IN-D

Differential current transformer

Dimension drawings

Design A


Design B


Design C


   

 

 

Dimensions

Type

Design

PIN-
Connection

h
[mm]

b1 / b2
[mm]

t
[mm]

DL / DL1
[mm]

FS
[mm]

p / s
[mm]

a
[mm]

c
[mm]

f
[mm]

e
[mm]

l
[mm]

IN-D / 2

A

1 - 2

38

38 / 54

20

13 / -

6,3 x 0,8

-

30

47

4,8

-

9

IN-D / 4

A

1 - 2

38

38 / 54

20

13 / -

6,3 x 0,8

-

30

47

4,8

-

9

IN-D / 8

A

1 - 2

38

38 / 54

20

13 / -

6,3 x 0,8

-

30

47

4,8

-

9

IN-D / 20

B

MKS1853

55

55 / 68

26

20,2 / -

-

45 / 45

60

13

4,3

6 x 4,0

23

IN-D / 30

B

MKS1853

55

55 / 68

26

20,2 / -

-

45 / 45

60

13

4,3

6 x 4,0

23

IN-D / 40

B

MKS1853

55

55 / 68

26

20,2 / -

-

45 / 45

60

13

4,3

6 x 4,0

23

IN-D / 30

C

Terminals

83

100 / 70

28

35 / 38

-

86 / -

14

-

7

-

-

IN-D / 40

C

Terminals

83

100 / 70

28

35 / 38

-

86 / -

14

-

7

-

-

IN-D / 50

C

Terminals

83

100 / 70

28

35 / 38

-

86 / -

14

-

7

-

-