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Current Transformers

EIG stocks multiple types of current transformers for metering applications.

  • Solid core CTs to use in revenue grade applications. Solid core current transformers have a core that is sealed to preserve the accuracy of the CT by protecting it from debris. For solid core current transformers, you must disconnect the conductor before installation.
  • Split core CTs have a hinge that enables installation without power interruption or the need to disconnect wires. Split core current transformers are ideal for retrofit and metering applications that are semi-permanent.

See the current transformers listed below. You can view the data sheet or click Buy Now to order the current transformers.

Solid Core
Split Core

Solid Core Instrument Transformers

5 A Secondary CTs

Ratio Part No. Window Accuracy Burden
50/5A EI-2SFT-500 1.13″ +/- 3% 1.5
100/5A EI-2SFT-101 1.13″ +/- 1% 2.0
200/5A EI-2SFT-201 1.13″ +/- 1% 4.0

ei-2sft-ct-dimensions-033022
Ratio Part No. Window Accuracy Burden
400/5A EI-5SFT-401 1.56″ +/- 1% 12.5

ei-5sft-ct-dimensions-033022
Ratio Part No. Window Accuracy Burden
50/5A EI-2DARL-500 1.00″ +/- 4.8% 2.5
100/5A EI-2DARL-101 1.00″ +/- 1.2% 5.0
200/5A EI-2DARL-201 1.00″ +/- 0.3% 12.5

ei-2darl-ct-dimensions
Ratio Part No. Window Accuracy Burden
400/5A EI-5ARL-401 1.56″ +/- 0.3% 20

ei-5arl-ct-dimensions
Ratio Part No. Window Accuracy Burden
600/5A EI-7RL-601 2.50″ +/- 1% 30
800/5A EI-7RL-801 2.50″ +/- 1% 35

ei-7rl-ct-dimensions
Ratio Part No. Window Accuracy Burden
1200/5A EI-76RL-122 3.00″ +/- 1% 10.0

ei-76arl-ct-dimensions
Ratio Part No. Window Accuracy Burden
1600/5A EI-8RL-162 3.25″ +/- 0.3% 100

ei-8rl-ct-dimensions
Ratio Part No.
CT Shorting Block EI-SB-6TC
ei-ct-shorting-block-dimensions

Split Core Instrument Transformers

1 A Secondary CTs

Ratio Part No. Window Accuracy Burden
60/1A EI-WC2-060-RA01 1.0″ x 1.4″ 1.0% –
100/1A EI-WC2-100-RA01 1.0″ x 1.4″ 1.0% –
200/1A EI-WC2-200-RA01 1.0″ x 1.4″ 0.5% –
400/1A EI-WC2-400-RA01 1.0″ x 1.4″ 0.5% –

ei-wc2-series-ct-dimensions
Ratio Part No. Window Accuracy Burden
100/5A EI-WC4-100-RA05 1.3″x1.7″ 1.0% 1.50
200/5A EI-WC4-200-RA05 1.3″ x 1.7″ 0.5% 2.10
300/5A EI-WC4-300-RA05 1.3″ x 1.7″ 0.5% 2.40
400/5A EI-WC4-400-RA05 1.3″ x 1.7″ 0.5% 2.75

ei-wc4-series-ct-dimensions
Ratio Part No. Window Accuracy Burden
400/5A EI-WC5-400-RA05 2.00″ x 3.50″ 0.75% 2.25
600/5A EI-WC5-600-RA05 2.00″ x 3.50″ 0.50% 2.75
800/5A EI-WC5-800-RA05 2.00″ x 3.50″ 0.50% 3.75

ei-wc5-series-ct-dimensions
Ratio Part No. Window Accuracy Burden
600/5A EI-3SP-600-00 2.19″ x 3.25″ 1.0% 7.5
800/5A EI-3SP-800-00 2.19″ x 3.25″ 1.0% 10

ei-3sp-series-ct-dimensions
Ratio Part No. Window Accuracy Burden
1200/5A EI-5SP-1200-00 2.88″ x 4.24″ 1.0% 10

ei-5sp-series-ct-dimensions
Ratio Part No. Window Accuracy Burden
1600/5A EI-7SP-1600-00 2.88″ x 6.25″ 1.0% 25

ei-7sp-series-ct-dimensions
Ratio Part No. Window Accuracy Burden
1000/5A EI-WC6-1000-RA05 2.00″ x 5.50″ 0.5% 5.00
1200/5A EI-WC6-1200-RA05 2.00″ x 5.50″ 0.5% 5.25
1600/5A EI-WC6-1600-RA05 2.00″ x 5.50″ 0.5% 6.25
2000/5A EI-WC6-2000-RA05 2.00″ x 5.50″ 0.5% 8.00

ei-wc6-series-ct-dimensions
Ratio Part No. Window Accuracy Burden
3000/5A EI-91SP-3000-00 4.00″ x 7.50″ 1.0% 50
4000/5A EI-91SP-4000-00 4.00″ x 7.50″ 1.0% 50

ei-91sp-series-ct-dimensions

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