Toroidal Current Transformers

Class 4210 / Refer to Catalog 4210CT9701

Toroidal Current Transformers (64R, 74R, 66R, 76R)

Models 64R, 74R

Models 66R, 76R

Models 64R, 66R, 74R, 76R,

Dimensions for 64R, 66R, 74R, and 76R

Model

Dimensions (inches)

A

B

C

 64R

 66R

 74R

 76R

1-15/16

1-15/16

2-11/32

2-11/32

4-3/16

4-3/16

4-11/16

4-11/16

1-1/2

31/16

1-5/8

3-1/4

Toroidal Current Transformers, UR/cUR Recognized, 25–400 Hz

Window Size (inches)

Catalog

Number 

(without

brackets) [1]

Current

Rating

(Amperes)

Relay

Class

ANSI Accuracy Classification—60 Hz

Metering Class

Rating

Factor

30 oC

Ambient

B-0.1

B-0.2

B-0.5

B-0.9

B-1.8

 

1-15/16

64R101

64R151

64R201

64R251

64R301

64R401

64R501

64R601

64R751

100:5

150:0

200:5

250:5

300:5

400:5

500:5

600:5

750:5

1.2

1.2

1.2

0.6

0.6

0.3

0.3

0.3

0.3

2.4

1.2

1.2

0.6

0.6

0.6

0.3

0.3

0.3

2.4

1.2

1.2

0.6

0.6

0.3

0.3

2.4

1.2

0.6

0.6

0.6

1.2

0.6

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1-15/16

66R101

66R151

66R201

66R251

66R301

66R401

66R501

66R601

66R751

100:5

150:0

200:5

250:5

300:5

400:5

500:5

600:5

750:5

C10 

C10 

C10 

C10 

C20 

C20 

C20 

1.2

0.6

0.6

0.3

0.3

0.3

0.3

0.3

0.3

2.4

1.2

0.6

0.6

0.3

0.3

0.3

0.3

0.3

2.4

1.2

0.6

0.6

0.3

0.3

0.3

0.3

2.4

2.4

1.2

1.2

0.6

0.6

0.3

0.3

2.4

2.4

1.2

0.6

0.6

0.3

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

2-11/32

74R201

74R251

74R301

74R401

74R501

74R601

74R751

74R801

74R102

74R122

74R152

200:5

250:5

300:5

400:5

500:5

600:5

750:5

800:5

1000:5

1200:5

1500:5

1.2

1.2

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

1.2

1.2

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.6

1.2

0.6

0.6

0.3

0.6

0.3

0.3

0.3

0.3

1.2

2.4

1.2

0.6

0.6

0.6

0.6

0.3

0.3

0.3

1.2

1.2

1.2

1.2

0.6

0.6

0.6

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.00

2-11/32

76R201

76R251

76R301

76R401

76R501

76R601

76R751

76R801

76R102

76R122

76R152

200:5

250:5

300:5

400:5

500:5

600:5

750:5

800:5

1000:5

1200:5

1500:5

C10 

C10 

C10 

C10 

C10 

C20 

C20 

C20 

C20 

C20 

C20 

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

1.2

1.2

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

2.4

1.2

1.2

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

2.4

2.4

1.2

1.2

0.6

0.6

0.6

0.3

0.3

0.3

0.3

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.00

Toroidal Current Transformers (110R, 110R, 120R, 140R)

Models 100R, 110R, 120R, 140R

100R, 110R, 120R, and 140R

Dimensions for 100R, 110R, 120R, and 140R

Model

Dimensions (inches)

A

B

C

100R

110R

120R

140R

4

4

5-3/4

8-1/8

7

7

8-1/2

11

2-1/8

2-7/8

2-1/8

3

Toroidal Current Transformers, UR/cUR Recognized, 25–400 Hz

Window Size (inches)

Catalog

Number 

(without

brackets) [1]

Current

Rating

(Amperes)

Relay

Class

ANSI Accuracy Classification—60 Hz

Metering Class

Rating

Factor

30 oC

Ambient

B-0.1

B-0.2

B-0.5

B-0.9

B-1.8

4

100R201

100R301

100R401

100R501

100R601

100R801

100R102

100R122

100R152

100R162

100R202

200:5

300:5

400:5

500:5

600:5

800:5

1000:5

1200:5

1500:5

1600:5

2000:5

C10 

C10 

C20 

C20 

C20 

C20 

C50 

C50 

C50 

C50 

C50 

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

1.2

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

2.4

1.2

0.6

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

1.2

1.2

0.6

0.6

0.3

0.3

0.3

0.3

0.3

0.3

2.4

1.2

1.2

0.6

0.6

0.3

0.3

0.3

0.3

0.3

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

4

110R201

110R301

110R401

110R501

110R601

110R801

110R102

110R122

110R152

110R162

110R202

200:5

300:5

400:5

500:5

600:5

800:5

1000:5

1200:5

1500:5

1600:5

2000:5

C20 

C20 

C20 

C50 

C50 

C50 

C100

C100

C100

C100

C100

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

1.2

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

2.4

1.2

0.6

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

2.4

1.2

0.6

0.6

0.3

0.3

0.3

0.3

0.3

0.3

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

5-3/4

120R201

120R301

120R401

120R501

120R601

120R801

120R102

120R122

120R152

120R162

120R202

120R252

120R302

120R402

200:5

300:5

400:5

500:5

600:5

800:5

1000:5

1200:5

1500:5

1600:5

2000:5

2500:5

3000:5

4000:5

C10 

C10 

C20 

C20 

C20 

C20 

C50 

C50 

C50 

C50 

C50 

C50 

C50 

1.2

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

2.4

1.2

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

2.4

2.4

1.2

0.6

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

2.4

1.2

1.2

0.6

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

2.4

2.4

1.2

0.6

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.00

8-1/8

140R500

50:5

For Ground Fault Sensing

1.33

140R101

100:5

1.33

8-1/8

140R401

140R501

140R601

140R801

140R102

140R122

140R152

140R202

140R252

140R302

140R402

140R502

140R602

400:5

500:5

600:5

800:5

1000:5

1200:5

1500:5

2000:5

2500:5

3000:5

4000:5

5000:5

6000:5

C20 

C20 

C20 

C50 

C50 

C100

C100

C100

C100

C100

C100

C100

C100

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

1.2

0.6

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

1.2

1.2

0.6

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

2.4

1.2

1.2

0.6

0.6

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.33

1.00

1.00

Toroidal Current Transformers (152R, 170R, 180R, 210R)

Models 152R, 170R, 180R, 210R

Dimensions for Models 152R, 170R, 180R, and 210R

Model

Dimensions (inches)

A

B

C

152R

170R

180R

210R

6.88

4.25

2.50

6.25

12.25

 6.75

 4.50

 9.50

4.12

1.31

2.12

2.87

Toroidal Current Transformers, UR/cUR Recognized, 25–400 Hz

Window Size (inches)

Catalog

Number

(without brackets) [1]

Current

Rating

(Amperes)

Relay Class

ANSI Accuracy Classification—60 Hz

Metering Class

Rating

Factor

30 oC

Ambient

B-0.1

B-0.2

B-0.5

B-0.9

B-1.8

6-7/8

152R500

152R101

152R151

152R201

50:5

100:5

150:5

200:5

C10 

C20 

C50 

C50 

1.2

1.2

0.6

0.6

2.4

1.2

0.6

2.4

1.2

2.4

2.4

1.33

1.33

1.33

1.33

152R251

152R301

152R401

152R501

250:5

300:5

400:5

500:5

C50 

C100

C100

C100

0.3

0.3

0.3

0.3

0.6

0.3

0.3

0.3

0.6

0.6

0.3

0.3

1.2

1.2

0.6

0.3

2.4

1.2

1.2

0.6

1.33

1.33

1.33

1.33

152R601

152R801

152R102

152R122

600:5

800:5

1000:5

1200:5

C200

C200

C200

C400

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.3

0.3

0.3

1.33

1.33

1.33

1.33

152R152

152R162

152R202

152R252

1500:5

1600:5

2000:5

2500:5

C400

C400

C400

C400

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

1.33

1.33

1.33

1.33

152R302

152R402

3000:5

4000:5

C400

C800

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

1.33

1.33

4-1/4

170R201

170R251

170R301

200:5

250:5

300:5

1.2

0.6

0.6

0.6

0.6

0.6

2.4

2.4

1.2

2.4

1.33

1.33

1.33

170R401

170R501

170R601

400:5

500:5

600:5

0.6

0.3

0.3

0.6

0.6

0.3

0.6

0.6

0.6

1.2

1.2

1.2

2.4

1.33

1.33

1.33

170R751

170R801

170R102

750:5

800:5

1000:5

C10 

C10 

C10 

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.3

0.3

0.6

0.6

0.3

1.2

1.2

0.6

1.33

1.33

1.33

170R122

170R152

170R162

170R202

170R252

1200:5

1500:5

1600:5

2000:5

2500:5

C10 

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.6

0.6

0.3

0.3

1.33

1.33

1.33

1.33

1.33

2-1/2

180R101

180R151

180R201

100:5

150:5

200:5

2.4

1.2

1.2

2.4

2.4

1.2

2.4

1.33

1.33

1.33

180R251

180R301

180R401

250:5

300:5

400:5

0.6

0.6

0.3

1.2

0.6

0.3

2.4

1.2

0.6

2.4

2.4

1.2

2.4

1.33

1.33

1.33

180R501

180R601

180R751

500:5

600:5

750:5

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.3

0.3

0.6

0.6

0.3

1.2

1.2

0.6

1.33

1.33

1.33

180R801

180R102

180R122

180R152

800:5

1000:5

1200:5

1500:5

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.6

0.3

0.3

1.2

0.6

0.6

0.3

1.33

1.33

1.33

1.33

2-1/2

210R122

210R162

210R202

210R252

210R302

210R402

1200:5

1600:5

2000:5

2500:5

3000:5

4000:5

C100

C100

C100

C200

C200

C200

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

1.33

1.33

1.33

1.33

1.0 

1.0 

Toroidal Current Transformers (200R, 201R, 202R, 203R)

Models 200R, 201R, 202R, 203R

Dimensions for Models 200R, 201R, 202R, and 203R

Model [2]

Dimensions A (inches)

200R

201R

202R

203R

2.50

3.50

4.50

5.25

Toroidal Current Transformers, UR/cUR Recognized, 25–400 Hz

Window Size (inches)

Catalog

Number

(without brackets) [1]

Current

Rating

(Amperes)

Relay Class

ANSI Accuracy Classification—60 Hz

Metering Class

Rating

Factor

30 oC

Ambient

B-0.1

B-0.2

B-0.5

B-0.9

B-1.8

2-1/2

200R101

200R151

200R201

200R251

100:5

150:0

200:5

250:5

C50 

C50 

C100

C100

0.6

0.3

0.3

0.3

1.2

0.6

0.3

0.3

1.2

0.6

0.6

0.3

1.2

1.2

0.6

2.4

1.2

1.2

1.5

1.5

1.5

1.5

200R301

200R401

200R501

200R601

300:5

400:5

500:5

600:5

C100

C200

C200

C200

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.3

0.3

0.3

1.5

1.5

1.5

1.5

3-1/2

201R101

201R151

201R201

100:5

150:5

200:5

C20 

C50 

C50 

1.2

0.3

0.3

1.2

0.6

0.3

2.4

1.2

0.6

2.4

2.4

1.2

2.4

2.4

1.5

1.5

1.5

201R251

201R301

201R401

201R501

250:5

300:5

400:5

500:5

C100

C100

C100

C200

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.3

0.3

0.3

1.2

0.6

0.3

0.3

1.2

1.2

0.6

0.3

1.5

1.5

1.5

1.5

201R601

201R751

201R801

600:5

750:5

800:5

C200

C200

C200

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

1.5

1.5

1.5

4-1/2

202R101

202R151

202R201

100:5

150:5

200:5

C20 

C20 

C50 

1.2

1.2

0.3

2.4

1.2

0.6

2.4

2.4

1.2

2.4

1.2

2.4

1.5

1.5

1.5

202R251

202R301

202R401

202R501

250:5

300:5

400:5

500:5

C50 

C50 

C100

C100

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.6

0.3

0.3

1.2

0.6

0.3

0.3

1.2

1.2

0.6

0.8

1.5

1.5

1.5

1.5

202R601

202R751

202R801

202R102

600:5

750:5

800:5

1000:5

C100

C200

C200

C200

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

1.5

1.5

1.5

1.5

5-1/4

203R101

203R151

203R201

100:5

150:5

200:5

C20 

C20 

C20 

1.2

0.6

0.3

2.4

1.2

0.6

2.4

1.2

2.4

2.4

2.4

1.5

1.5

1.5

203R251

203R301

203R401

250:5

300:5

400:5

C20 

C50 

C50 

0.3

0.3

0.3

0.6

0.3

0.3

1.2

0.6

0.6

1.2

1.2

0.6

2.4

1.2

1.2

1.5

1.5

1.5

203R501

203R601

203R751

203R801

500:5

600:5

750:5

800:5

C100

C100

C100

C100

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.6

0.6

0.3

0.3

1.5

1.5

1.5

1.5

203R102

203R122

203R152

203R162

1000:5

1200:5

1500:5

1600:5

C200

C200

C200

C200

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

1.5

1.5

1.5

1.33

203R202

203R252

203R302

2000:5

2500:5

3000:5

C200

C200

C200

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

0.3

1.33

1.33

1.33

Shorting Terminal Blocks

Shorting Terminal Blocks

Catalog No.

Description

3090TB4

Shorting terminal block (4-pole)

3090TB6

Shorting terminal block (6-pole)

Footnotes

  1. For mounting brackets, refer to Bushing Current Transformers 50–400 Hz
  2. Base is included.

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