Voltage and Current Transformers

Class 4210 / Refer to Catalog 4210CT9701

Voltage Transformers: Obsolete—January 1, 2023

Model 450R

Model 460R

Model 470R

These voltage transformers are designed for line-to-line or line-to-ground connection on the primary voltage indicated. See Voltage Transformers, UR/cUR Recognized, 60 Hz to determine the applicable configuration for proper system voltage indication.

  • Model 450R—designed for switchboard use. This model features high accuracy and burden capacity for excellent performance in metering and indication.

  • Model 460R—a compact, lightweight design, providing exceptional performance in indicating applications.

  • Model 470R—a compact, low cost design optimized for maximum accuracy and performance when used with PowerLogic™ circuit monitors.

Voltage Transformers, UR/cUR Recognized, 60 Hz

Model 450R

Thermal Rating:
500 VA @ 30 oC;
300 VA @ 55 oC.

Accuracy 0.3W. X.M & Y: 1.2 Z

Model 460R

Thermal Rating:
150 VA @ 30 oC;
100 VA @ 55 oC.

Accuracy 0.6W: 1.2 X

Model 470R

Thermal Rating:
150 VA @ 30 oC;
100 VA @ 55 oC.

Accuracy 0.3W: 1.2 X

System

Voltage

Winding

Ratio

Catalog Number

Catalog Number

Catalog Number

450R069

450R120

450R208

450R240

450R288

460R069

460R120

460R208

460R240

460R288

470R069

470R120

470R208

470R240

470R288

69/120Y

120/208Y

120/208Y

240/416Y

288/500Y[1]

0.58:1

1:1

1.73:1

2:1

2.4:1

450R300

450R380

450R480

450R600

460R300

460R380

460R480

460R600

470R300

470R380

470R480

470R600

300/520Y

220/380Y

480/480Y[2]

600/600Y

2.5:1

3.17:1

4:1

5:1

Model

Dimensions (inches)

A

B

C

450R

460R

470R

6

4–3/4

4–3/4

7–1/8

4–1/2

4–1/2

5–7/8

3–7/8

3–7/8

Obsolete—January 1, 2023 Current Transformers

Model 54R

Dimensions for Models 2NR, 5NR, 54R, and 7RL

Model

Dimensions (inches)

A

B

C

D

E

2NR 

5NR 

54R

7RL

1.13

1.56

1.56

2.25

2.38

3.50

3.50

4.38

4.56

 .94

1.06

1.06

1.38

4.00

General Purpose Compact Units, UR/cUR Recognized

Window Size
(inches)

Catalog Number 

(without brackets)  

Current Rating (Amperes)

VA 60 Hz

VA 400 Hz

Accuracy

(At Rated Current)

Rating

Factor

30 oC Ambient

1-1/8

2NR500

2NR600

2NR750

2NR800

2NR101

2NR121

2NR1250

2NR151

2NR201

2NR251

2NR301

50:5

60:5

75:5

80:5

100:5

120:5

125:5

150:5

200:5

250:5

300:5

1.0

1.0

1.5

1.5

2.0

2.5

2.5

2.5

2.5

2.5

2.5

2.0

2.0

3.0

3.0

4.0

5.0

5.0

5.0

5.0

5.0

5.0

= 2%

= 2%

= 2%

= 2%

= 1%

= 1%

= 1%

= 1%

= 1%

= 1%

= 1%

1.0

1-9/16

5NR101

5NR151

5NR201

5NR251

5NR301

5NR401

5NR501

5NR601

100:5

150:5

200:5

250:5

300:5

400:5

500:5

600:5

2.0

2.5

5.0

5.0

5.0

12.5

12.5

25.0

4.0

5.0

12.5

12.5

12.5

25.0

25.0

50.0

= 1%

1.0

1-9/16

54R101

54R151

54R201

54R251

54R301

54R401

54R501

54R601

100:5

150:5

200:5

250:5

300:5

400:5

500:5

600:5

2.0

2.5

5.0

5.0

5.0

12.5

12.5

25.0

 4.0

 5.0

12.5

12.5

12.5

25.0

25.0

50.0

= 1%

1.0

2-1/4

7RL500

7RL101

7RL151

7RL201

7RL251

7RL301

7RL401

7RL501

7RL601

7RL751

7RL801

7RL102

7RL122

7RL152

50:5

100:5

150:5

200:5

250:5

300:5

400:5

500:5

600:5

750:5

800:5

1000:5

1200:5

1500:5

2.5

2.5

2.5

5.0

5.0

5.0

12.5

12.5

12.5

12.5

12.5

25.0

25.0

25.0

5.0

5.0

5.0

10.0

10.0

10.0

25.0

25.0

25.0

25.0

25.0

50.0

50.0

50.0

= 1%

1.5

Footnotes

  1. For use on 277/480 Wye systems.
  2. For use on 480 V Delta systems.

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