Lumel LCTB 8660451250A55 Current Transformer, 1250A/5A, Class 0.5, Busbar Aperture 86/60 mm

The Lumel LCTB 8660451250A55 is a high-precision current transformer engineered for accurate electrical monitoring in industrial environments. Designed to convert high primary currents into manageable secondary signals, this device is essential for energy management systems and power distribution panels. With its robust construction and precise measurement capabilities, it provides reliable data for monitoring power consumption and ensuring the efficiency of electrical infrastructure.

Advantages

This current transformer offers exceptional measurement accuracy, meeting the requirements of class 0.5 standards for precise energy monitoring. Its design facilitates easy installation on busbars, saving time and effort during setup in complex electrical cabinets. The device is built to withstand demanding industrial conditions, ensuring long-term stability and consistent performance. By providing a reliable 5A secondary output, it integrates seamlessly with standard measuring instruments and protection relays, making it a versatile component for modern power distribution systems.

Suitable for

• Energy management and monitoring systems
• Power distribution panels and switchgear
• Industrial automation and control applications
• Electrical load monitoring and analysis

This transformer may not be suitable for applications requiring extremely high accuracy classes beyond 0.5, such as specialized laboratory testing or high-precision billing meters that demand class 0.2 or higher. Additionally, it is not intended for use in environments where the busbar dimensions exceed the 86/60 mm aperture capacity.

Key specifications

• Primary current: 1250A
• Secondary current: 5A
• Accuracy class: 0.5
• Busbar aperture: 86/60 mm
• Mounting type: Busbar

To use the Lumel LCTB 8660451250A55, ensure the power supply is disconnected before installation. Mount the transformer securely onto the busbar, ensuring the aperture fits correctly around the conductor. Connect the secondary terminals to your measuring device or relay using appropriate wiring, ensuring that the polarity is correct to maintain measurement accuracy. Once installed, verify the connections and perform a test measurement to confirm the system is operating as expected.

What to consider before purchase

• Verify that the primary current of your system does not exceed 1250A.
• Check that your busbar dimensions are compatible with the 86/60 mm aperture.
• Ensure the secondary input of your measuring device is compatible with a 5A signal.
• Confirm that the accuracy class 0.5 meets your specific monitoring requirements.

For optimal performance and safety, always ensure that the secondary circuit is never left open while the primary current is flowing, as this can lead to dangerous high-voltage conditions. Regular inspection of the connections is recommended to maintain measurement integrity.