The Combined Current Transformer from Jiangyin Yucheng Electric Co., Ltd. is an integrated intelligent control unit designed for power distribution systems, electrical protection devices and automated control scenarios. It integrates control logic, signal acquisition, drive output and communication functions in one unit, featuring compact structure, stable operation, strong anti-interference and easy wiring, providing efficient, safe and unified management for industrial power, commercial power distribution, intelligent buildings and integrated electrical equipment.

Electrical Performance and Technical Specifications

To meet diverse control and protection needs, the Combined Current Transformer provides the following key parameters:

• Supply voltage: AC 220V / DC 24V (optional)
• Input signal: Analog 4–20mA, switch signal, residual current signal
• Output mode: Relay contact, transistor drive, pulse output
• Communication interface: RS485 (Modbus-RTU standard protocol)
• Operating temperature: -20℃ ~ +70℃
• Protection degree: IP40 for indoor installation
• Shell material: Flame retardant ABS, 94-V0
• Mounting: 35mm standard DIN rail mounting
• Wiring: Terminal block connection, stable and reliable

These specifications ensure high control accuracy, fast response speed, strong anti-electromagnetic interference and long service life, fully meeting the application requirements of power monitoring and electrical control systems.

Key Applications

The Combined Current Transformer is ideal for:

• Intelligent power distribution cabinet control and protection
• Residual current protection and electrical fire monitoring systems
• Motor control and overload protection
• Automatic transfer switch (ATS) control
• Power parameter measurement and fault alarm
• Lighting and circuit integrated control
• Industrial automation and intelligent equipment supporting

It is especially suitable for projects requiring integrated control, centralized management and high operational reliability.

Structural and Installation Advantages

Integrated Combined Design

Integrates acquisition, control, drive and communication functions, reducing component quantity, simplifying system wiring and lowering failure points.

Compact and SpaceSaving

Small outline structure, DIN rail mounting, greatly saving cabinet space and convenient for system upgrading and retrofitting.

Stable and AntiInterference

Industrialgrade components and optimized circuit design provide strong anti-interference, stable operation in harsh power environments.

Easy Configuration and Use

Support parameter setting and status monitoring via upper computer, simple operation, convenient debugging and later maintenance.

Installation & Maintenance

1. Install the module on 35mm standard DIN rail inside the distribution cabinet.
2. Connect power supply, input signal and output load according to the wiring diagram.
3. Connect communication cable to monitoring host or upper computer if needed.
4. Power on and check the running status and indicator lights.

Daily maintenance is simple, mainly including regular inspection of wiring terminals, fastening condition and running indicators.

Choose Jiangyin Yucheng Electric’s Combined Current Transformer for integrated, intelligent and reliable power control solutions. Contact us for detailed parameters, customized functions and technical support.