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HEYI Factory KCT Type Split Core Current Transformer
HEYI Factory KCT Type Split Core Current Transformer

HEYI Factory KCT Type Split Core Current Transformer

HEYI brand KCT series split current transformers can be used in charging piles, substations, energy storage systems, energy monitoring systems, electric energy meters, etc., to measure current. Installed on cables and busbars without breaking the circuit,

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Introduce

HEYI brand of KCT type of split core current transformers have been specifically designed to be small CT and easy to open and yet maintain the accuracy required for kwh meters. The benefit of a split core current transformer is that it can be placed into position easily and without disturbing or disconnecting the main cables it is monitoring. The KCT type of current transformers has two insulated terminal covers for connecting the S1 and S2 cables which lock down over the terminal screws fully insulating the connections. This makes it ideal to use Autometers cable hamesses which are colour coded and individually numbered on each conductor ensuring simple and easy connection from the current transformer to the electricity meter.

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 automation control system.
Current, power and energy monitoring device.
Relay protection device.

Features

The structure of the self-locking, safe, easy to install, portable.
Wide inner window, allowing clamping of big cables or bus-bars.
Wide range of sizes to accommodate all the existing installations.
Isolated plastic case recognized according to UL94-V0.
Wires plugs,Audio plugs,Power plugs and so on five kinds of plugs.

Technical Parameter

Electrical Parameter Mechanical Parameter
Frequency 50-2K Hz Case PA/UL94-V0
Rated Input 1A-1000A Bobbin PBT
Measuring range 10%In-120%In Core Silicon steel
Rated Output 0.333V(AC)or 0-5A Internal structure Epoxy
Ratio ≤ ± 0.5% Construction Tie
Phase angle ≤ ±60min Operation Temp -25oC~+75oC
Dielectric strangth 2.5KV/1mA/1min Operating Humidity ≤85%
Insulation Resistance DC500V/100MΩ min Output Connection UL1015 20AWG Wire2.5m

 

Specification

MODEL KCT-6
Current Ratio 5A/2.5mA 10A/10mA 20A/10mA
Primary Current 5A 10A 20A
Max.Current 30A 30A 30A
Output 2.5mA 5mA 10mA
Load Resistance 200Ω 100Ω 50Ω
Class 0.5 0.5 0.5
Turns Ratio 2000:1 1000:1 2000:1
Protection Level 7.5V0-P 7.5V0-P 7.5V0-P
Insulation Category CATIII
Operating Condition -20℃～+50℃,≤85%RH,
No condensation,IN-house&Any direction installable
Storage Condition -30℃～+50℃,≤85%RH,No condensation

 

MODEL KCT-10
Current Ratio 5A/2.5mA 20A/10mA 60A/20mA 75A/25mA 1~75A/0.333~3V
Primary Current 5A 20A 60A 75A 1~75A
Max.Current 60A 60A 72A 75A 1~75A
Output 2.5mA 10mA 20mA 25mA 333mV~3V
Load Resistance 400Ω 100Ω 50Ω 50Ω /
Class 0.5 0.5 0.5 0.5 0.5
Turns Ratio 2000:1 2000:1 3000:1 3000:1 /
Protection Level 7.5V0-P 7.5V0-P 7.5V0-P 7.5V0-P 7.5V0-P
Insulation Category CATIII
Operating Condition -20℃～+50℃,≤85%RH,
No condensation,IN-house&Any direction installable
Storage Condition -30℃～+50℃,≤85%RH,No condensation

 

MODEL KCT-16
Current Ratio 100A/40mA 100A/50mA 150A/50mA 200A/40mA 1~200A/0.333~3V
Primary Current 100A 100A 150A 200A 1~200A
Max.Current 120A 120A 180A 240A 240A
Output 40mA 50mA 50mA 40mA 333mV~3V
Load Resistance 50Ω 50Ω 50Ω 50Ω /
Class 0.5 0.5 0.5 0.5 0.5
Turns Ratio 2500:1 2000:1 3000:1 5000:1 /
Protection Level 7.5V0-P 7.5V0-P 7.5V0-P 7.5V0-P 7.5V0-P
Insulation Category CATIII
Operating Condition -20℃～+50℃,≤85%RH,
No condensation,IN-house&Any direction installable
Storage Condition -30℃～+50℃,≤85%RH,No condensation

 

MODEL KCT-24
Current Ratio 100A/40mA 200A/40mA 300A/50mA 400A/50mA 1~400A/0.333~3V
Primary Current 100A 200A 300A 400A 1~400A
Max.Current 120A 240A 360A 480A 480A
Output 40mA 40mA 50mA 50mA 333mV~3V
Load Resistance 50Ω 50Ω 50Ω 50Ω /
Class 0.5 0.5 0.5 0.5 0.5
Turns Ratio 2500:1 5000:1 6000:1 8000:1 /
Protection Level 7.5V0-P 7.5V0-P 7.5V0-P 7.5V0-P 7.5V0-P
Insulation Category CATIII
Operating Condition -20℃～+50℃,≤85%RH,
No condensation,IN-house&Any direction installable
Storage Condition -30℃～+50℃,≤85%RH,No condensation

 

MODEL KCT-36
Current Ratio 300A/50mA 400A/50mA 500A/50mA 600A/50mA 1~600A/0.333~3V
Primary Current 300A 400A 500A 600A 1~600A
Max.Current 360A 480A 600A 720A 720A
Output 50mA 50mA 50mA 50mA 333mV~3V
Load Resistance 50Ω 50Ω 50Ω 50Ω /
Class 0.5 0.5 0.5 0.5 0.5
Turns Ratio 6000:1 8000:1 10000:1 12000:1 /
Protection Level 7.5V0-P 7.5V0-P 7.5V0-P 7.5V0-P 7.5V0-P
Insulation Category CATIII
Operating Condition -20℃～+50℃,≤85%RH,
No condensation,IN-house&Any direction installable
Storage Condition -30℃～+50℃,≤85%RH,No condensation

1. How do I choose the right KCT split core current transformer for my cable or busbar?

The correct KCT model mainly depends on the primary current, cable diameter or busbar size, required output signal, and accuracy class. Before ordering, please provide the conductor dimensions and rated current. HEYI can recommend a suitable KCT split core current transformer according to your installation space and electrical requirements.

2. What current ratios and output options are available for the KCT series?

The KCT series is available with different primary current ranges and secondary output options for power measurement and energy monitoring applications. Common output types include mA and low-voltage signals such as 333mV. If your meter or monitoring device has a specific input requirement, please send us the input specification for model selection.

3. Can the KCT split core current transformer work with my energy meter or monitoring system?

Yes. The KCT split core current transformer can be used with compatible energy meters, power meters and energy monitoring systems. The CT output must match the input requirement of the connected device. For OEM projects, customers can provide the meter input type, rated current and conductor size so that HEYI can evaluate the appropriate CT specification.

4. What is the difference between a 333mV output and an mA output split core CT?

A 333mV split core current transformer provides a low-voltage signal and is commonly used with energy meters and monitoring equipment designed for voltage-input CTs. An mA output CT provides a current signal instead. The correct choice depends on the input circuit of your meter, controller or data acquisition device. Always confirm the required input signal before ordering.

5. Can the KCT split core current transformer be installed without disconnecting the existing cable?

Yes. The split-core design allows the KCT current transformer to open and clamp around an existing conductor, so the conductor does not need to be removed from the circuit during installation. This makes it especially suitable for retrofit energy monitoring, electrical panels and existing power distribution systems where installation space and wiring changes are limited.

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