Outdoor Waterproof Current Transformer Designed for Reliable Outdoor Electrical Monitoring

The advanced waterproof current transformer is designed for outdoor electrical monitoring applications where stable current measurement and waterproof protection are required. Named Outdoor Waterproof Current Transformer, this product is mainly used for cable and conductor current detection in outdoor power systems.

Compared with traditional waterproof methods that mainly rely on sealing pads, this series adopts integrated molding technology. The transformer body is directly formed in the mold, and the plastic material wraps the structure without gaps. The secondary-side lead adopts a waterproof terminal and sheath wire design to improve protection against moisture and rainwater.

According to the supplied product information, the product has achieved IP67/IP65 protection grade after testing by authoritative institutions and meets the requirements of GB/T20840.1.2.

Electrical Performance and Technical Specifications

The Outdoor Waterproof Current Transformer provides multiple specifications to meet different current monitoring requirements.

Main technical parameters include:

• Rated input range: 5A～4000A (depending on model) 
• Rated output: 0～5A / 0～5V 
• Accuracy class: 0.2, 0.5S, 0.5 
• Applicable standard: GB/T20840.1.2 
• Protection grade: IP67/IP65 
• Rated frequency: 50/60Hz 
• Shell material: PA/PC, flame retardant grade 94-V0 
• Iron core material: Silicon steel, nanocrystalline, or ferrite 
• Internal structure: Waterproof sealing ring and puncture needle 
• Working environment temperature: -40℃～70℃ 
• Ambient humidity: ＜80% 

The product supports different current ranges according to model selection, allowing users to choose a suitable specification based on electrical system requirements.

Key Applications

The Outdoor Waterproof 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 grid applications 
• Substation transformation 
• Environmental protection detection 
• Small current grounding systems 
• Relay protection 
• Motor protection systems 

With its waterproof structure and current measurement capability, the product is suitable for outdoor electrical equipment where environmental protection and signal collection are required.

Waterproof Structural Design

Integrated Waterproof Construction

The product adopts an integrated molding process to improve the overall sealing performance of the transformer body. Unlike structures that only rely on external sealing components, the integrated molding design helps reduce gaps between components.

A rubber pad is also installed around the section port to reduce the possibility of rainwater entering through the connection area.

Waterproof Secondary Connection

The secondary side uses a waterproof terminal and sheath wire structure. This design helps improve protection at the wiring connection and supports stable operation in outdoor environments.

Open-close Installation Structure

The product adopts an open-close structure, which provides convenience during installation. The transformer can be installed according to the selected conductor arrangement and electrical system requirements.

The open-close structure, combined with waterproof sealing design, makes the product suitable for outdoor monitoring applications.

Installation and Connection

Installation should be completed according to the selected model and actual application conditions.

The basic installation process includes:

• Select the appropriate model according to the rated current requirements. 
• Install the transformer according to the conductor arrangement. 
• Ensure the waterproof sealing structure is properly positioned. 
• Connect the secondary output through the waterproof terminal and sheath wire. 

Before installation, users should confirm the current range, output requirements, installation environment, and connection method to ensure compatibility with the monitoring or protection system.

Product Selection Considerations

When selecting an Outdoor Waterproof Current Transformer, users should consider the required rated input, output signal, accuracy class, protection grade, and installation conditions.

Different models provide different current ranges to match various electrical systems. The selected specification should correspond with the connected monitoring equipment and actual operating environment.

The IP67/IP65 protection grade and waterproof structural design make the product suitable for outdoor electrical monitoring scenarios requiring additional environmental protection.

Conclusion

The Outdoor Waterproof Current Transformer is designed for outdoor electrical monitoring applications that require reliable current measurement and waterproof protection.

Through integrated molding technology, waterproof terminals, sealing structure, and flame-retardant materials, the product provides a practical solution for electrical fire monitoring, intelligent power systems, smart grids, relay protection, and motor protection applications.

The product supports multiple current specifications and accuracy options, allowing users to select suitable configurations according to different electrical system requirements.

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

Contact us for detailed product specifications, installation information, or technical support.