Lumel LCTB 5030 Current Transformer, 400A/5A, 50/30mm Busbar Opening

The Lumel LCTB 5030 current transformer is a high-precision instrument engineered for accurate electrical current measurement in industrial power systems. With a transformation ratio of 400A/5A and a specialized 50/30mm busbar opening, this device provides reliable signal conversion for various monitoring, control, and protection applications. Its robust construction ensures consistent performance and durability even in demanding electrical environments, making it an essential component for energy management and grid safety.

Advantages

This current transformer offers exceptional measurement accuracy, which is vital for maintaining the stability and efficiency of industrial electrical networks. The design facilitates easy installation onto busbars, reducing downtime during setup. Furthermore, the high-quality materials used in its construction provide excellent resistance to environmental factors, ensuring a long service life and minimal maintenance requirements for critical monitoring systems.

Suitable for

• Industrial power distribution monitoring
• Energy management and sub-metering systems
• Protection relays for electrical circuits
• Current measurement in low-voltage switchgear

When it may not be suitable

This device is not intended for high-voltage applications exceeding its specified insulation levels. It is also not suitable for measuring currents outside of its rated 400A range, as this may lead to inaccurate readings or potential damage to the secondary equipment.

Key specifications

• Transformation ratio: 400A/5A
• Busbar opening dimensions: 50/30mm
• Application: Industrial current measurement
• Design: Through-hole busbar mounting

How to use

To install the Lumel LCTB 5030, ensure that the primary electrical circuit is de-energized. Pass the busbar through the 50/30mm aperture of the transformer. Secure the device firmly to prevent vibration. Connect the secondary terminals to your measuring instrument or protection relay using appropriate wiring, ensuring that the polarity is correctly observed to maintain measurement accuracy.

What to consider before purchase

• Verify that the primary current of your system does not exceed 400A.
• Ensure the physical dimensions of your busbar are compatible with the 50/30mm opening.
• Confirm that your secondary measuring equipment is calibrated for a 5A input.

Usage recommendations

Always ensure that the secondary circuit of the current transformer is never left open while the primary circuit is energized, as this can generate dangerously high voltages.