CURRENT TRANSFORMERS SPLIT CORE

The DM... series current transformers (CT) are installed in electric systems to reduce the line current to a secondary value of 5A, which is compatible with current inputs of digital multimeters or protection relays.
These are without primary winding and are used for high primary current values from 250A upward.
The number of loops of the primary cable does not modify the accuracy but converts the primary current value proportionally to secondary current.
Suitable for screw fixing or mounting on 35mm DIN rail (IEC/EN 60715), using the standard-supplied kit.

 

General characteristics:

Operating frequency: 40-60Hz

Secondary output current: 5A

Overload withstand: 120% Ip

Rated dynamic current Idyn: 2.5Ith for 1 second

Insulation (dry type): class E

Degree of protection: IP30.

 

Order code

Primary
current

Burden

A/5

cl. 0,5
[VA]

cl. 1
[VA]

For 50x80mm busbar.

DM1TA 0250

250

1,5

3

DM1TA 0300

300

1,5

3

DM1TA 0400

400

1,5

3

DM1TA 0500

500

2,5

5

DM1TA 0600

600

2,5

5

DM1TA 0750

750

2,5

5

DM1TA 0800

800

2,5 

5

DM1TA 1000 

1000

5 

10

For 80x80mm busbar.

DM2TA 0250

250

1,5 

3

DM2TA 0300

300

1,5

3

DM2TA 0400

400

1,5

3

DM2TA 0500

500

2,5

5

DM2TA 0600

600

2,5

5

DM2TA 0750

750

2,5

5

DM2TA 0800

800

2,5

5

DM2TA 1000

1000

5

10

For 80x120mm busbar. 

DM3TA0500

500

2,5

5

DM3TA 0600

600

2,5 

5

DM3TA 0750

750

2,5

5

DM3TA 0800

800

2,5

5

DM3TA 1000

1000

5

10

DM3TA 1200

1200

6

12

DM3TA 1250

1250

7,5

15

DM3TA 1500

1500

7,5 

15


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