Lumel LCTB 5030 Current Transformer 125/5A Class 0.5 with 50/30mm Busbar Aperture

The Lumel LCTB 5030 current transformer is a high-precision device engineered for accurate current measurement in electrical distribution systems. With a transformation ratio of 125/5A and a 0.5 accuracy class, it provides reliable signal conversion for secondary measuring instruments, such as ammeters, energy meters, and power analyzers. The unit is designed for mounting on busbars, featuring a 50/30mm aperture that accommodates standard industrial busbar configurations.

Advantages

This current transformer offers exceptional measurement stability and precision, which is essential for effective energy management and monitoring. Its robust construction ensures long-term durability in demanding industrial environments. The device is optimized for easy installation on busbars, reducing setup time while maintaining high signal integrity for downstream monitoring equipment. By providing a standardized secondary output, it ensures compatibility with a wide range of electrical measurement and protection devices.

Suitable for

• Industrial power monitoring systems
• Energy management and sub-metering
• Electrical distribution panels
• Secondary signal conversion for ammeters and power meters

This device may not be suitable for applications requiring high-voltage insulation beyond its rated specifications or for environments with extreme electromagnetic interference that could affect signal accuracy. It is not intended for direct connection to high-voltage lines without appropriate safety isolation and professional installation.

Key specifications

• Transformation ratio: 125/5A
• Accuracy class: 0.5
• Busbar aperture dimensions: 50/30mm
• Application: Low voltage electrical systems

To use the Lumel LCTB 5030, ensure the primary conductor is passed through the busbar aperture, ensuring the orientation matches the required polarity for accurate measurement. The secondary terminals should be connected to the measuring instrument using appropriately sized wiring to minimize resistance. Always ensure the secondary circuit is closed before energizing the primary conductor to prevent high-voltage buildup.

What to consider before purchase

• Verify the current rating matches your system requirements
• Check the physical dimensions of your busbar against the 50/30mm aperture
• Ensure the accuracy class meets your specific monitoring needs
• Confirm compatibility with your existing secondary measuring instruments

For optimal performance and safety, ensure all connections are tightened to the manufacturer's torque specifications and that the device is installed by a qualified electrical technician in accordance with local safety standards.