0.66kV Split Core CT, Open Type Current Transformer Pure Copper Coil

0.66kV Split Core CT, Open Type Current Transformer Pure Copper Coil

KCT series split core current transformer is an open clamp-on type CT designed for quick installation without cutting power cables. Equipped with V0 flame retardant outer housing and full pure copper winding coil, supports multiple current ratios from 50A/5A up to 1000A/5A, with 3kV insulation and high measurement precision. Widely applied in solar PV combiner boxes, low voltage distribution cabinets, smart power meters and industrial energy monitoring systems. Factory direct supply with custom ratio & OEM service for global electrical wholesale.

KCT series split core current transformer is an open clamp-on type CT designed for quick installation without cutting power cables. Equipped with V0 flame retardant outer housing and full pure copper winding coil, supports multiple current ratios from 50A/5A up to 1000A/5A, with 3kV insulation and high measurement precision. Widely applied in solar PV combiner boxes, low voltage distribution cabinets, smart power meters and industrial energy monitoring systems. Factory direct supply with custom ratio & OEM service for global electrical wholesale.

1. Product Overview

KCT split core current transformer is an innovative open clamp-on current sensor, specially designed to solve the trouble of power cut and wire disassembly during CT installation. Its split hinge structure allows users to directly clamp the CT onto existing live cables without power shutdown, greatly improving construction efficiency for energy retrofitting projects.
This open type CT adopts high-quality pure copper winding coil and V0 flame retardant insulating shell, with 3kV insulation withstand voltage, stable linearity and high measurement accuracy. Multiple standard current ratios cover 50A/5A to 1000A/5A to match different power monitoring, photovoltaic combiner box, intelligent electricity meter and industrial automation scenarios. As a professional CT manufacturer, we support custom current ratios, wire length and private logo for overseas electrical distributors and solar system contractors.

2. Core Competitive Features

✅ Quick Split Clamp-On Open Design

Hinged split core structure, no need to disconnect power cables during installation, directly clamp on the target single wire, save construction time and avoid power outage loss.

✅ V0 Grade Flame Retardant Housing

Outer shell made of high temperature resistant flame retardant plastic, anti-aging, insulation protection, safe for long-term operation inside distribution cabinets and PV combiner boxes.

✅ Full Pure Copper Winding Coil

Internal winding adopts 100% pure copper wire, low loss, stable magnetic transmission, guarantee long-term consistent high precision current measurement.

✅ Complete Standard Current Ratios

Rich specification range: 50/5A, 100/5A, 150/5A, 200/5A, 300/5A, 400/5A, 500/5A, 600/5A,700/5A,800/5A,1000/5A customizable special ratios for special engineering demands.

✅ High Safety Insulation Performance

3kV insulation withstand voltage design, strong anti-interference ability, stable output signal even in complex industrial electromagnetic environment.

✅ High Precision Stable Measurement

Strict production calibration, small measurement error, accurate data output for energy consumption statistics, power monitoring and metering equipment.

✅ Wide Application Compatibility

Perfectly matched with smart energy meters, data loggers, solar PV monitoring systems, low voltage power distribution cabinets and building automation.

✅ Factory Direct & Customization Support

Original factory supply without middle markup; support custom transformation ratio, extension wire length, silk screen logo and OEM packaging for global export bulk orders.

3. Main Product Specifications

ItemTechnical Parameter
ModelKCT Split Core Current Transformer
Structure TypeOpen Split Clamp-On Hinge Design
Rated Voltage0.66kV Low Voltage
Standard Current Ratio50A/5A ~ 1000A/5A (Custom Ratios Available)
Rated Load1VA
Insulation Withstand Voltage3kV
Shell MaterialV0 Grade Flame Retardant Plastic
Winding MaterialPure Copper Coil
Frequency50/60Hz
Core AdvantageNo power cut installation, high precision, flame retardant, full copper winding
ApplicationPV combiner box, energy monitoring, smart power meter, distribution cabinet
ServiceFactory wholesale, OEM & custom ratio customization, export packaging

4. Wide Application Scenarios

  • Solar photovoltaic combiner box power monitoring
  • Low voltage distribution cabinet energy consumption measurement
  • Building intelligent power management system
  • Factory workshop industrial energy monitoring retrofitting
  • Smart electricity meter supporting current collection
  • Agricultural solar irrigation system data acquisition
  • Commercial shopping mall power load monitoring

5. Installation & Operation Guide

  1. Confirm the cable current range and select the matched KCT split core CT ratio.
  2. Open the split hinge buckle of the CT, clamp the single copper cable into the inner core hole, close and lock the clamp tightly to avoid air gap.
  3. Connect the two output red/black signal wires (S1, S2) to the corresponding input terminals of power meter or monitoring device.
  4. Fix the CT with cable ties to prevent shaking and loose core contact during long-term operation.
  5. Check signal reading on monitoring equipment; adjust clamp tightness if data deviation occurs.

6. Frequently Asked Questions (FAQ)

Q1: What is the biggest advantage of split core current transformer?

A: The open split clamp design allows installation on existing live cables without cutting power supply, no need to disassemble cables, much more convenient than closed solid core CT.

Q2: What materials are used for this KCT split core CT?

A: The outer shell is V0 flame retardant plastic, internal winding uses full pure copper coil to ensure stable measurement and low loss.

Q3: What current ratios can this open type CT provide?

A: Standard ratios from 50A/5A to 1000A/5A, we accept customized special transformation ratios for special engineering projects.

Q4: Is this split core CT suitable for solar PV combiner boxes?

A: Yes, with flame retardant shell and high insulation, it is widely used for DC/AC power current monitoring inside PV combiner boxes.

Q5: Can you customize split core CT for export wholesale orders?

A: We are direct manufacturer, support custom current ratios, signal wire length, private logo printing and OEM packaging for global electrical customers.

7. Factory Wholesale Advantages

  1. Direct factory production, competitive ex-factory price for large volume export orders.
  2. Every split core CT passes precision calibration and insulation withstand test before delivery to guarantee stable accuracy.
  3. Professional electrical technical team provides ratio selection and wiring installation guidance for PV & power projects.
  4. Stable mass production capacity, fast delivery cycle, shockproof anti-collision export carton packaging for sea transportation.
  5. Flexible customization service to meet different regional electrical standard requirements and customer brand demands.

1. Product Overview

KCT split core current transformer is an innovative open clamp-on current sensor, specially designed to solve the trouble of power cut and wire disassembly during CT installation. Its split hinge structure allows users to directly clamp the CT onto existing live cables without power shutdown, greatly improving construction efficiency for energy retrofitting projects.
This open type CT adopts high-quality pure copper winding coil and V0 flame retardant insulating shell, with 3kV insulation withstand voltage, stable linearity and high measurement accuracy. Multiple standard current ratios cover 50A/5A to 1000A/5A to match different power monitoring, photovoltaic combiner box, intelligent electricity meter and industrial automation scenarios. As a professional CT manufacturer, we support custom current ratios, wire length and private logo for overseas electrical distributors and solar system contractors.

2. Core Competitive Features

✅ Quick Split Clamp-On Open Design

Hinged split core structure, no need to disconnect power cables during installation, directly clamp on the target single wire, save construction time and avoid power outage loss.

✅ V0 Grade Flame Retardant Housing

Outer shell made of high temperature resistant flame retardant plastic, anti-aging, insulation protection, safe for long-term operation inside distribution cabinets and PV combiner boxes.

✅ Full Pure Copper Winding Coil

Internal winding adopts 100% pure copper wire, low loss, stable magnetic transmission, guarantee long-term consistent high precision current measurement.

✅ Complete Standard Current Ratios

Rich specification range: 50/5A, 100/5A, 150/5A, 200/5A, 300/5A, 400/5A, 500/5A, 600/5A,700/5A,800/5A,1000/5A customizable special ratios for special engineering demands.

✅ High Safety Insulation Performance

3kV insulation withstand voltage design, strong anti-interference ability, stable output signal even in complex industrial electromagnetic environment.

✅ High Precision Stable Measurement

Strict production calibration, small measurement error, accurate data output for energy consumption statistics, power monitoring and metering equipment.

✅ Wide Application Compatibility

Perfectly matched with smart energy meters, data loggers, solar PV monitoring systems, low voltage power distribution cabinets and building automation.

✅ Factory Direct & Customization Support

Original factory supply without middle markup; support custom transformation ratio, extension wire length, silk screen logo and OEM packaging for global export bulk orders.

3. Main Product Specifications

ItemTechnical Parameter
ModelKCT Split Core Current Transformer
Structure TypeOpen Split Clamp-On Hinge Design
Rated Voltage0.66kV Low Voltage
Standard Current Ratio50A/5A ~ 1000A/5A (Custom Ratios Available)
Rated Load1VA
Insulation Withstand Voltage3kV
Shell MaterialV0 Grade Flame Retardant Plastic
Winding MaterialPure Copper Coil
Frequency50/60Hz
Core AdvantageNo power cut installation, high precision, flame retardant, full copper winding
ApplicationPV combiner box, energy monitoring, smart power meter, distribution cabinet
ServiceFactory wholesale, OEM & custom ratio customization, export packaging

4. Wide Application Scenarios

  • Solar photovoltaic combiner box power monitoring
  • Low voltage distribution cabinet energy consumption measurement
  • Building intelligent power management system
  • Factory workshop industrial energy monitoring retrofitting
  • Smart electricity meter supporting current collection
  • Agricultural solar irrigation system data acquisition
  • Commercial shopping mall power load monitoring

5. Installation & Operation Guide

  1. Confirm the cable current range and select the matched KCT split core CT ratio.
  2. Open the split hinge buckle of the CT, clamp the single copper cable into the inner core hole, close and lock the clamp tightly to avoid air gap.
  3. Connect the two output red/black signal wires (S1, S2) to the corresponding input terminals of power meter or monitoring device.
  4. Fix the CT with cable ties to prevent shaking and loose core contact during long-term operation.
  5. Check signal reading on monitoring equipment; adjust clamp tightness if data deviation occurs.

6. Frequently Asked Questions (FAQ)

Q1: What is the biggest advantage of split core current transformer?

A: The open split clamp design allows installation on existing live cables without cutting power supply, no need to disassemble cables, much more convenient than closed solid core CT.

Q2: What materials are used for this KCT split core CT?

A: The outer shell is V0 flame retardant plastic, internal winding uses full pure copper coil to ensure stable measurement and low loss.

Q3: What current ratios can this open type CT provide?

A: Standard ratios from 50A/5A to 1000A/5A, we accept customized special transformation ratios for special engineering projects.

Q4: Is this split core CT suitable for solar PV combiner boxes?

A: Yes, with flame retardant shell and high insulation, it is widely used for DC/AC power current monitoring inside PV combiner boxes.

Q5: Can you customize split core CT for export wholesale orders?

A: We are direct manufacturer, support custom current ratios, signal wire length, private logo printing and OEM packaging for global electrical customers.

7. Factory Wholesale Advantages

  1. Direct factory production, competitive ex-factory price for large volume export orders.
  2. Every split core CT passes precision calibration and insulation withstand test before delivery to guarantee stable accuracy.
  3. Professional electrical technical team provides ratio selection and wiring installation guidance for PV & power projects.
  4. Stable mass production capacity, fast delivery cycle, shockproof anti-collision export carton packaging for sea transportation.
  5. Flexible customization service to meet different regional electrical standard requirements and customer brand demands.

Data Download

LVMA low voltage selection manual

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