Voltage and Current Transformers

Class 4210 / Refer to Catalog 4210CT9701

Voltage Transformers

Schneider Electric offers three models of voltage transformers, each suited for a particular application:

  • Model 450R

    • Applications requiring accurate voltage measurement within the 0.3% accuracy class

    • Switchboards with 1% instrumentation

  • Model 460R

    • Applications with less critical accuracy and low burden requirements

    • Transducers and other panelboard monitoring

  • Model 470R

    • Extremely accurate voltage measurement

    • Low burden applications, such as PLC modules and similar, high-impedance electronic devices

Voltage Transformers

Application

Model Number

Accuracy/Burden and Thermal Rating

Primary Voltages
(120 Vac Secondary)

Large burden

450R

0.3 W, X, M, Y; 500 VA Thermal

120–600 Vac

Small burden

460R

0.6 W, 1.2X; 150 VA Thermal

120–600 Vac

Small burden

470R

0.3W, 1.2X; 150 VA Thermal

120–600 Vac

Current Transformers

Current transformers are low cost, compact units that offer good electrical performance in a general purpose transformer.

  • They are very easy to mount on the conductors.

  • All current transformers feature permanent polarity marks molded into the case.

The following types of current transformers are available:

  • General purpose

  • Toroidal (single ratio)

  • Rectangle window (single ratio)

  • Split core

  • Bushing (single ratio) (multi-ratio)

For part numbers, see Section 6 of the Supplemental Digest or see the Schneider Electric Product Configurator.

Contact your local Schneider Electric representative for other available features.

Current Transformers

Window Diameter

Model Number

Usual Application

Primary Range in Amperes [1]

UL Recognized Product

in.

mm

Metering

Metering or Control Relaying

High Output Relaying

1.3

28

2NR

X

50–300

Yes

1.56

40

5NR

X

100–600

54R

X

100–600

1.94

49

64R

X

100–750

66R

X

100–750

2.25

57

7RL

50–1500

7RT

50–1500
  150–1500 [2]

2.34

59

74R

X

200–1500

76R

X

200–1500

2.50

63

74RFT

180R

X

100–1500

200R

X

100–600

3.50

89

201R

X

100–800

4.00

102

100R

X

200–2000

110R

X

200–2000

4.25

108

170R

X

200–2000

4.50

114

312R

 

X

600–4000

202R

X

X

100–1000

5.25

133

203R

X

100–3000

5.75

146

120R

X

200–3000

6.25

159

210R

X

X

200–3000

6.88

175

151R

 

X

600–4000

152R

X

X

50–4000

8.13

206

140R

X

X

50–6000

2.12 x 4.25

54 x 108

260R

X

100–4000

3.50 x 6.25

89 x 159

273

X

200–4000

3.56 x 8.81

90 x 224

270R

X

400–5000

7.45 x 3.75

189 x 95

560R

X

400–5000

Footnotes

  1. With a 5 A secondary.
  2. With a 1 A secondary.

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