Current transformer 250/5A Ø22, class 0.5 TI-250-5

Current transformers for precise measurement

This current transformer is a reliable tool for measuring current in electrical installations. Designed to work with primary current circuits up to 250A, it converts it into a safe and measurable secondary signal of 5A. Its compact design and 22 mm aperture diameter allow for easy installation in various applications. Accuracy class 0.5 guarantees precise measurements, which is crucial for both professional installers and end-users requiring accurate data.

Construction and application

A through-type current transformer with a closed core is an ideal solution for use in energy monitoring systems, overcurrent protection, and load control. Thanks to its construction, it enables safe and isolated current measurements without the need to directly connect to the primary circuit. The rated power of 5VA ensures stable operation of the device, and the operating frequency in the range of 50-60 Hz makes it compatible with most electrical networks. The maximum working voltage of 0.66 kV AC ensures safe use in typical installations.

Key features and benefits

• Measurement accuracy: Accuracy class 0.5 ensures reliable readings, which is important for the correct operation of monitoring and protection systems.

• Safety: Galvanic isolation between the primary and secondary circuits minimizes the risk of electric shock and damage to measuring equipment.

• Versatility: The possibility of mounting on panels and busbars increases installation flexibility.

• Durability: Made of high-quality materials guarantees long-lasting and reliable operation of the device in a wide temperature range (from -5°C to 40°C).

• Easy installation: Compact dimensions (61 mm x 81 mm x 34 mm) and a 22 mm diameter hole facilitate integration with existing installations.

• Compliance with standards: Meets the requirements of IEC 60044-1 standard, which confirms its quality and safety.

• FS 5 overload factor: Allows for short-term overloads without damaging the transformer – useful when starting motors or other devices with high starting current.

• Screw connection S1/S2 (4mm²): Provides a secure and durable connection of secondary wires.

This transformer finds application in electrical switchboards, control cabinets and wherever precise current measurement is required in a safe manner. It is an indispensable element of energy consumption monitoring systems and protection against overloads and short circuits.