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HEYI Factory CP Type Current Transformer
HEYI Factory CP Type Current Transformer

HEYI Factory CP Type Current Transformer

CP range of current transformers are compact- smaller than other models with the current ratio of the transformer is small. Clamshell-style terminal cover is well protected by the second terminal. With related accessories you can use Din rail mounting a current from 5A to 3000A.

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Introduce

CP range of current transformers are compact-smaller than other models with the current ratio of the transformer is small Clamshell-style terminal cover is well protected by the second terminal.With related accessories you can use Din rail mounting a current from 5A to 3000A.

Applications

Current measurement, monitoring and piotection for electrical wiring and equipment.
Current and power measurement for electric motors, lighting,air compressor, heating and ventilation system.
Air-condition equipment and Current, power and energy monitoring device.
Relay protection device.

Features

Three built in fixing methods: Panel/Din Rail/Busbar.
Built in hinged terminal cover.
Compact design.
Primary current from 5A to 3000A.

Technical Parameter

Electrical Parameter Mechanical Parameter
Frequency 50/60Hz Case PC/UL94-V0
Rated Input 5A-3000A Bobbin PBT
Measuring range 5%In-120%In Core Silicon steel
Rated Output 1A,5A Construction Screw
Ratio Voltage 0.72KV (AC) Operating Temp －25℃～＋75℃
Dielectric strength 3.0KV/1mA/1min Operating Humidity ≤85%
Insulation Resistance DC500V/100MΩ min Output Connection Terminal

Specification

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5s class:0.5 class:1.0
CP-62/B 5/5A 2.5 2.5 2.5 50/60
10/5A 2.5 2.5 2.5 50/60
15/5A 2.5 2.5 2.5 50/60
20/5A 2.5 2.5 2.5 50/60
25/5A 2.5 2.5 2.5 50/60
30/5A 2.5 2.5 2.5 50/60
40/5A 2.5 2.5 2.5 50/60
50/5A 2.5 2.5 2.5 50/60
60/5A 2.5 2.5 2.5 50/60
75/5A 2.5 2.5 2.5 50/60
100/5A 2.5 2.5 2.5 50/60
150/5A 2.5 2.5 2.5 50/60

 

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5s class:0.5 class:1.0
CP-62/20 30/5A – – 2.5(4T) 50/60
40/5A – – 2.5(3T) 50/60
50/5A – – 2.5(3T) 50/60
60/5A – – 2.5(2T) 50/60
75/5A – – 1.5 50/60
80/5A – – 2.5 50/60
100/5A 2.5 2.5 2.5 50/60
150/5A 2.5 2.5 3.75 50/60
200/5A 2.5 3.75 5 50/60

 

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5s class:0.5 class:1.0
CP-62/30 50/5A – – 2.5(2T) 50/60
60/5A – – 2.5(2T) 50/60
75/5A – – 1.5 50/60
100/5A 2.5 2.5 2.5 50/60
150/5A 2.5 2.5 3.5 50/60
200/5A 2.5 3.5 5 50/60
250/5A 2.5 5 5 50/60
300/5A 2.5 5 5 50/60
400/5A 3.75 5 5 50/60

 

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5s class:0.5 class:1.0
CP-62/40 60/5A – – 2.5(2T) 50/60
75/5A – – 2.5(2T) 50/60
100/5A – – 1 50/60
150/5A – – 2.5 50/60
200/5A 2.5 2.5 3.75 50/60
250/5A 2.5 2.5 5 50/60
300/5A 2.5 5 6 50/60
400/5A 2.5 5 6 50/60

 

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5s class:0.5 class:1.0
CP-80/30 30/5A – – 2.5(4T) 50/60
50/5A – – 2.5(2T) 50/60
60/5A – – 2.5(2T) 50/60
75/5A – – 1.5 50/60
100/5A 2.5 2.5 2.5 50/60
150/5A 2.5 2.5 3.75 50/60
200/5A 3.75 3.75 5 50/60
250/5A 5 5 7.5 50/60
300/5A 5 5 7.5 50/60

 

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5s class:0.5 class:1.0
CP-80/40 100/5A – – 2.5 50/60
150/5A 2.5 2.5 3.75 50/60
200/5A 2.5 3.75 5 50/60
200/5A 2.5 3.75 5 50/60
300/5A 5 5 5 50/60
400/5A 5 5 10 50/60
500/5A 5 5 10 50/60

 

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5s class:0.5 class:1.0
CP-86/60 250/5A 2.5 2.5 5 50/60
300/5A 2.5 5 5 50/60
400/5A 2.5 5 7.5 50/60
500/5A 2.5 5 7.5 50/60
600/5A 5 7.5 10 50/60
750/5A 5 10 15 50/60
800/5A 5 10 15 50/60
1000/5A 7.5 10 15 50/60

 

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5s class:0.5 class:1.0
CP-100/60 400/5A 2.5 5 7.5 50/60
500/5A 2.5 5 7.5 50/60
600/5A 5 7.5 10 50/60
750/5A 5 10 15 50/60
800/5A 5 10 15 50/60
1000/5A 7.5 10 15 50/60
1200/5A 15 15 15 50/60
1500/5A 15 15 15 50/60
1600/5A 15 15 15 50/60

 

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5s class:0.5 class:1.0
CP-104/80 600/5A 2.5 7.5 10 50/60
750/5A 2.5 7.5 10 50/60
800/5A 5 10 10 50/60
1000/5A 7.5 10 15 50/60
1200/5A 10 10 15 50/60
1250/5A 10 10 15 50/60
1500/5A 10 15 15 50/60
1600/5A 10 15 15 50/60
2000/5A 10 15 15 50/60

 

Type Ratio(A) Burden(VA) Frequency(Hz)
class:0.5s class:0.5 class:1.0
CO-140/100 800/5A 5 10 10 50/60
1000/5A 5 10 15 50/60
1200/5A 10 15 15 50/60
1250/5A 10 15 15 50/60
1500/5A 15 15 15 50/60
1600/5A 15 15 15 50/60
2000/5A 15 15 15 50/60
2500/5A 15 15 15 50/60
3000/5A 15 15 15 50/60
Current-Transformer-CP Series

FAQ

1. How do I choose the right CP current transformer for my busbar or cable size?

Choose the CP current transformer according to the busbar or cable dimensions, required current ratio, accuracy class, and installation space. HEYI offers different CP models with various window sizes for switchboards, distribution panels, and energy monitoring systems. Please provide your busbar or cable size for model selection.

2. What current ratios are available for the CP Series current transformer?

The HEYI CP Series current transformer supports a wide range of primary currents, with common ratios such as 100/5A, 200/5A, 400/5A, 600/5A, 1000/5A, 1500/5A, 2000/5A, and 3000/5A. Other ratios can also be discussed according to project requirements.

3. What is the difference between Class 0.5S, Class 0.5, and Class 1.0 current transformers?

Class 0.5S provides higher measurement accuracy, especially at low current levels, making it suitable for energy metering applications. Class 0.5 is commonly used for accurate electrical measurement, while Class 1.0 is suitable for general current monitoring and indication. The correct accuracy class should be selected according to the meter and project requirements.

4. How do I choose the correct VA burden for a CP current transformer?

The required VA burden depends on the connected meter or measuring device, cable length, conductor resistance, and current transformer secondary output. Common burden ratings include 2.5VA, 5VA, 10VA, and 15VA. For accurate measurement, the total secondary circuit burden should remain within the rated burden of the current transformer.

5. Can the CP current transformer be supplied with a 1A or 5A secondary output?

Yes. The HEYI CP Series current transformer can be supplied with either 1A or 5A secondary output depending on the application. A 5A secondary is widely used in conventional switchboards and meters, while a 1A secondary is often preferred for longer secondary wiring because it helps reduce cable losses.

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