FF TOM-100-5 Miniature Current Transformer, 100-5A, Split Core

The FF TOM-100-5 is a high-precision miniature current transformer engineered for accurate current measurement in diverse electrical environments. Featuring a practical split-core design, this device enables seamless installation onto existing cables without the need to disconnect or interrupt the primary circuit, significantly reducing downtime and labor during setup. With a transformation ratio of 100-5A, it provides reliable performance for monitoring electrical loads in compact spaces where traditional solid-core transformers might be difficult to implement.

Advantages

The primary benefit of the FF TOM-100-5 lies in its split-core architecture, which offers unparalleled convenience for retrofitting existing installations. Its compact size allows for integration into crowded electrical panels or tight enclosures where space is at a premium. By providing a stable 5A secondary output, it ensures compatibility with a wide range of standard measuring instruments and power management systems, delivering consistent and accurate data for energy monitoring applications.

Suitable for

• Energy monitoring and sub-metering systems
• Industrial automation and control processes
• Power management and distribution monitoring
• Retrofitting existing electrical installations

When it may not be suitable

This transformer is not intended for use in high-voltage power transmission lines or environments exceeding its specified insulation ratings. It is also not suitable for applications requiring direct measurement of DC currents, as it is designed exclusively for AC current sensing.

Key specifications

• Transformation ratio: 100-5A
• Design: Split-core for non-invasive installation
• Application: AC current measurement
• Compact form factor for space-constrained environments

How to use

To install the FF TOM-100-5, simply open the split-core housing by releasing the locking mechanism. Place the transformer around the primary conductor that needs to be monitored and snap the core halves back together until they are securely closed. Ensure the orientation is correct according to the markings on the device. Connect the secondary output terminals to your measuring instrument or energy meter using appropriate wiring. Once connected, the device will begin providing a proportional current signal for your monitoring system.

What to consider before purchase

• Verify that the primary current does not exceed the 100A rating
• Ensure the secondary input of your measuring device is compatible with a 5A signal
• Check the physical dimensions to confirm it fits within your specific enclosure
• Confirm that the cable diameter of the primary conductor fits within the transformer aperture

Usage recommendations

For optimal accuracy, ensure the core faces are clean and free of debris before closing the transformer. Always verify that the secondary circuit is properly terminated before energizing the primary conductor to prevent high-voltage buildup.