LCTB 104/60 Current Transformer 400A/5A Class 0.5

The LCTB 104/60 current transformer is a high-precision device engineered for accurate current measurement in electrical distribution systems. With a transformation ratio of 400A/5A and an accuracy class of 0.5, it provides reliable data for monitoring and protection equipment. Designed specifically for busbar mounting, this transformer ensures seamless integration into industrial and commercial power networks, facilitating efficient energy management and system safety.

Advantages

This current transformer offers exceptional measurement accuracy, which is essential for maintaining the stability and efficiency of electrical installations. Its robust construction ensures long-term durability and consistent performance even under demanding operational conditions. The design is optimized for easy installation on busbars, significantly reducing setup time and labor costs. By providing a precise 5A secondary signal from a 400A primary current, it enables the use of standard measuring instruments and protective relays, making it a versatile component for various power distribution setups.

Suitable for

• Industrial power distribution systems
• Commercial building energy monitoring
• Protection relay applications
• Electrical panel instrumentation
• Current measurement in busbar configurations

When it may not be suitable

This device is not intended for use in high-voltage transmission lines or environments exceeding its specified insulation and thermal limits. It is also not suitable for applications requiring a transformation ratio other than 400A/5A or for installations where the physical dimensions of the busbar exceed the aperture capacity of the transformer.

Key specifications

• Transformation ratio: 400A/5A
• Accuracy class: 0.5
• Mounting type: Busbar
• Aperture size: 104/60 mm

How to use

To install the LCTB 104/60 current transformer, ensure that the primary power circuit is de-energized to prevent electrical hazards. Pass the busbar through the central aperture of the transformer, ensuring it is centered and securely fastened according to the mechanical mounting instructions. Connect the secondary terminals to the measuring or protection device using appropriate wiring, ensuring correct polarity. Once installed, verify all connections before re-energizing the primary circuit to ensure accurate readings.

What to consider before purchase

• Verify that the primary current of your system matches the 400A rating.
• Ensure the busbar dimensions are compatible with the 104/60 mm aperture.
• Confirm that the accuracy class 0.5 meets your specific monitoring requirements.
• Check the space availability within the electrical cabinet for proper mounting.

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 lead to dangerous high-voltage build-up. Regularly inspect the connections for tightness and signs of thermal stress to maintain optimal performance.