Clamp Type Current Transformer for Efficient Cable and Copper Bar Current Monitoring

The Clamp Type Current Transformer is mainly designed for current measurement applications involving cables and copper bars in electrical main circuits. With a practical structure and flexible installation design, this series is suitable for power monitoring, energy consumption management, intelligent power systems, and electrical protection applications. The product adopts an open and close structure, allowing convenient installation around the applicable conductor. According to the product information, the series includes five specifications, with the primary current range within 1000A. The product can meet different accuracy requirements, including Class 0.2, Class 0.5, and Class 1.

Electrical Performance and Technical Specifications

The Clamp Type Current Transformer provides the following technical specifications for electrical monitoring systems:

• Primary current: 0–160Arms 
• Rated secondary output: 1A–5A 
• Secondary output option: 0–1V or 0–1A 
• Accuracy class: Class 0.2, Class 0.5, Class 1 
• Ratio difference: ≤±0.1% 
• Phase difference: ≤±10 points 
• Working frequency: 50–400Hz 
• Highest equipment voltage: 0.66/0.72KVrms 
• Dielectric strength: 2.5KV/1mA/1min 
• Insulation resistance: DC500V/1000MΩ/min 

The transformer uses nickel or nanocrystalline iron core material, ABS shell with flame retardant grade 94-V0, PBT skeleton, and environment-friendly epoxy resin casting internal structure. These design features support stable operation in current measurement and monitoring applications.

Main Applications in Electrical Systems

The Clamp Type Current Transformer is mainly applied in systems that require current signal collection and monitoring, including:

• Power monitoring 
• Energy consumption management 
• Intelligent power systems 
• Electromagnetic relay protection 
• Microcomputer protection 
• Motor protection 
• Rural power grid transformation 
• Substation transformation 
• Environmental protection detection 
• 

Open and Close Structure for Convenient Installation

The open and close structure is one of the main features of this current transformer. Compared with traditional installation methods, this structure provides a more convenient way to install the transformer around the applicable cable or copper bar.

The product adopts screw fixation according to the supplied mechanical specifications. During installation, the selected transformer specification should match the primary current requirements, conductor conditions, secondary output requirements, and connected monitoring equipment.

The connection mode is terminal type/shielded strand 1.5m, providing a standard connection method for integration with related electrical devices.

Materials and Structural Design

The product structure consists of several specified components:

• ABS housing with flame retardant grade 94-V0 
• PBT skeleton material 
• Nickel or nanocrystalline iron core 
• Environment-friendly epoxy resin casting internal structure 

These materials form the basic construction of the transformer and support its use in electrical measurement and protection systems.

The transformer’s electrical performance includes a working frequency range of 50–400Hz, a working temperature range of -12℃ to +45℃, and ambient humidity requirements of ≤85%.

Selection and Installation Considerations

When selecting the appropriate model, users should check the main circuit current, conductor type, secondary output requirement, accuracy class, and installation environment.

Since the product is mainly used for cables and copper bars, the conductor compatibility should be confirmed before installation. The selected specification should also meet the requirements of the connected monitoring or protection system.

The transformer should be installed according to electrical safety requirements, with correct connection of the primary conductor and secondary output terminals.

Conclusion

The Clamp Type Current Transformer provides a flexible solution for cable and copper bar current monitoring. With an open and close structure, multiple output options, and different accuracy classes, it can be used in power monitoring, energy management, intelligent power systems, and protection applications.

The product adopts ABS flame-retardant housing, PBT skeleton, nickel or nanocrystalline iron core, and environment-friendly epoxy resin casting structure. Its specified electrical and mechanical characteristics make it suitable for various current measurement systems.

Contact us for detailed product specifications, installation information, and product selection support.