Open-close Type Outdoor Current Transformer with Waterproof Design for Outdoor Electrical Monitoring

The durable outdoor current transformer from Jiangyin Yucheng Electric Co., Ltd. is designed for outdoor electrical monitoring applications that require reliable waterproof protection. As an Open-close Type Outdoor Current Transformer, this product is mainly used for current monitoring in outdoor electrical systems, providing a practical solution for applications such as electrical fire monitoring, intelligent power systems, and protection equipment.

The product adopts an open-close structure with a waterproof design. The section port is surrounded by a rubber pad to help prevent rainwater from entering. Different from a simple sealing method, the transformer body adopts one-step molding technology, forming a solid structure inside the mold and wrapping the plastic body without gaps. The secondary-side lead uses a waterproof terminal and sheath wire to improve the overall waterproof performance. According to the provided product information, the waterproof grade reaches IP67/IP65, and the product meets the requirements of GB20840.1.2.

Electrical Performance and Technical Specifications

The Open-close Type Outdoor Current Transformer provides electrical parameters and structural features suitable for outdoor monitoring and protection applications.

Main specifications include:

• Input current range: 0A–800A 
• Applicable standard: GB/T20840.1.2 
• Product standard: GB20840-0.66/3KV 
• Voltage level: 0.4/0.66/0.69/0.72kV 
• Accuracy class: 0.5s 0.51 
• Load accuracy: 5VA/2.5VA 
• Rated frequency: 50/60Hz 
• Iron core: Silicon steel/nanocrystalline/ferrite 
• Shell: PA/PC, flame retardant grade 94-V0 
• Internal structure: Waterproof sealing ring/puncture needle 
• Protection grade: IP67/IP65 
• Flame retardant: UL94-V0 
• Ambient temperature: -15℃ to +40℃ 
• Applicable environment: -40℃ to 70℃ 
• Humidity: <80% 

These specifications provide the basic information required for selecting the appropriate transformer according to electrical conditions, installation environment, and protection requirements.

Key Applications

The Open-close Type Outdoor Current Transformer is suitable for various electrical monitoring and protection systems, including:

• Electrical fire monitoring systems 
• Fire equipment power supply monitoring systems 
• Intelligent power systems 
• Smart grids 
• Substation transformation 
• Environmental protection detection 
• Small current grounding systems 
• Relay protection 
• Motor protection systems 

The product is designed for outdoor environments where current monitoring equipment needs protection against moisture and changing environmental conditions.

In electrical fire monitoring and fire equipment power supply monitoring systems, the transformer can be used as part of the current detection system. It is also applicable to intelligent power systems and smart grid-related applications where stable current information collection is required.

Waterproof Structural Design

Open-close Structure

The Open-close Type Outdoor Current Transformer adopts an open-close structure, making installation more convenient in electrical systems where the conductor needs to be accessed easily.

The section port is designed with a rubber pad structure to help reduce the possibility of rainwater entering through the opening. This design is suitable for outdoor installation environments where waterproof protection is required.

One-step Molding Technology

The transformer body uses one-step molding technology. According to the product information, the transformer is directly formed into a solid body inside the mold, with the plastic material wrapped around the transformer without gaps.

This structure provides an additional sealing method compared with relying only on a rubber pad around the opening area.

Waterproof Secondary Connection

The secondary-side lead adopts a waterproof terminal and sheath wire. This design helps prevent water from entering through the secondary connection area and forms part of the overall waterproof structure.

Together with the sealed transformer body, the waterproof terminal, and the sheath wire, the product provides the specified waterproof construction for outdoor applications.

Materials and Product Structure

The product uses PA/PC material for the shell, with flame retardant grade 94-V0. The iron core options include silicon steel, nanocrystalline, and ferrite materials according to the product configuration.

The internal structure includes a waterproof sealing ring and puncture needle. These components are part of the product design for outdoor electrical monitoring applications.

The flame retardant requirement complies with UL94-V0. The combination of shell material, internal structure, and waterproof connection components provides the construction characteristics specified for this outdoor current transformer.

Installation & Connection

The Open-close Type Outdoor Current Transformer should be installed according to the requirements of the electrical system and selected product specifications.

Installation steps include:

• Select the transformer according to the required input current and electrical conditions. 
• Position the open-close structure around the applicable conductor. 
• Ensure the transformer structure is properly closed after installation. 
• Secure the product according to the installation requirements. 
• Connect the secondary side through the waterproof terminal and sheath wire. 

The product has an input current range of 0A–800A. The rated frequency is 50/60Hz, and the voltage levels include 0.4/0.66/0.69/0.72kV. These parameters should be checked before installation to ensure compatibility with the electrical system.

Selection for Outdoor Electrical Systems

Selecting a suitable outdoor current transformer requires consideration of current range, voltage level, accuracy requirements, and waterproof protection.

The Open-close Type Outdoor Current Transformer provides an input current range of 0A–800A and uses waterproof structural design features to support outdoor monitoring applications.

The IP67/IP65 protection grade, PA/PC flame-retardant shell, waterproof sealing structure, and waterproof terminal design are important product characteristics when used in outdoor electrical systems.

Before installation, users should confirm that the selected transformer matches the requirements of the monitoring equipment and electrical system.

Conclusion

The Open-close Type Outdoor Current Transformer is designed for outdoor electrical monitoring and protection applications requiring waterproof construction. Its open-close structure, one-step molding technology, waterproof terminal, and IP67/IP65 protection grade provide a practical solution for outdoor current monitoring.

The product supports an input current range of 0A–800A and includes specified voltage levels, accuracy class, environmental requirements, and structural materials for different application conditions.

For electrical fire monitoring, intelligent power systems, smart grids, relay protection, motor protection, and other outdoor electrical applications, this transformer provides a suitable current monitoring option.

Explore the durable outdoor current transformer solution for outdoor electrical monitoring, protection systems, and applications requiring waterproof current measurement.

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