Hager SRA02505 Current Transformer 250/5A 2.5VA Class 1

The Hager SRA02505 current transformer is a precision-engineered component designed for reliable current measurement within electrical distribution systems. With a transformation ratio of 250/5A and a rated power of 2.5VA, this device provides accurate data for monitoring electrical loads in industrial and commercial environments. It is built to meet Class 1 accuracy standards, ensuring that energy management and system diagnostics are based on precise readings.

Advantages

This current transformer offers high measurement accuracy, which is critical for maintaining efficiency in complex electrical installations. Its robust construction ensures long-term operational reliability, while its compact design allows for seamless integration into standard electrical panels and Hager enclosure systems. By converting high primary currents into manageable secondary signals, it facilitates the safe and effective operation of connected measuring instruments and protection relays.

Suitable for

• Industrial electrical distribution panels
• Commercial energy monitoring systems
• Integration with ammeters and power meters
• Sub-metering applications in facility management

When it may not be suitable

This device is not intended for use in high-voltage transmission networks or applications requiring a transformation ratio other than 250/5A. It should not be installed in environments that exceed its specified thermal or environmental operating limits.

Key specifications

• Transformation ratio: 250/5A
• Rated power: 2.5VA
• Accuracy class: 1
• Application: Current measurement and monitoring

How to use

The Hager SRA02505 must be installed by a qualified electrician in accordance with local electrical regulations. The primary conductor should be passed through the aperture of the transformer, ensuring proper orientation as indicated by the device markings. The secondary terminals must be connected to the measuring equipment using appropriately sized wiring. Ensure all connections are secure and that the secondary circuit is never left open while the primary circuit is energized to prevent dangerous voltage buildup.

What to consider before purchase

• Verify that the 250/5A transformation ratio matches your specific load requirements.
• Ensure the 2.5VA power rating is sufficient for the burden of your connected measuring instruments.
• Check the physical dimensions to ensure compatibility with your existing panel layout.

Usage recommendations

Always ensure the secondary circuit is connected to a load or short-circuited before energizing the primary conductor to maintain safety and prevent damage to the transformer.