IME S.p.A. LCTB 8660451000A55 Current Transformer, 1000A/5A, Class 0.5, Busbar Opening 86/60mm

The IME S.p.A. LCTB 8660451000A55 is a high-precision current transformer engineered for robust electrical monitoring in industrial power distribution systems. This device is designed to accurately step down high primary currents of 1000A to a manageable 5A secondary current, facilitating precise measurement and monitoring by connected instrumentation. With a focus on reliability and performance, it serves as a critical component for energy management and electrical protection circuits.

Advantages

This current transformer offers exceptional measurement accuracy, adhering to the Class 0.5 standard, which ensures that data collected for energy billing or system monitoring remains highly reliable. Its robust construction is specifically tailored for demanding industrial environments, providing long-term stability and consistent performance. The generous busbar opening allows for flexible installation options, making it compatible with various busbar configurations commonly found in modern switchgear and distribution panels.

Suitable for

• Industrial power distribution systems
• Energy management and monitoring applications
• Electrical protection and control circuits
• Sub-metering and current measurement in switchgear

When it may not be suitable

This device is not intended for use in low-current applications where the primary current is significantly below the rated capacity, as accuracy may be compromised. It is also not suitable for residential or small-scale domestic electrical installations that do not utilize busbar systems.

Key specifications

• Primary current: 1000A
• Secondary current: 5A
• Accuracy class: 0.5
• Busbar opening dimensions: 86/60mm

How to use

Installation should be performed by qualified electrical personnel in accordance with local safety regulations. The transformer is mounted by passing the primary busbar through the central opening of the device. Ensure that the busbar is centered and securely fastened to prevent vibration. The secondary terminals must be connected to the measuring or protection equipment using appropriately sized wiring, ensuring that the secondary circuit is never left open while the primary current is flowing to avoid dangerous voltage buildup.

What to consider before purchase

• Verify that the primary current rating of 1000A matches your specific application requirements.
• Ensure the physical dimensions of your busbar are compatible with the 86/60mm opening.
• Confirm that your monitoring equipment is compatible with a 5A secondary current output.

Usage recommendations: Always ensure the secondary circuit is connected to a load or short-circuited before energizing the primary conductor. Regularly inspect the connections for tightness and signs of thermal stress to maintain optimal measurement accuracy.