Current transformer 125/5A Ø22, class 0.5 TI-125-5

Current transformer for precise measurements

This current transformer is a reliable tool for safe and accurate current measurement in electrical installations. Designed for both industrial and public utility applications, it provides precise conversion of high primary current values into secondary signals, suitable for use with various measuring and control devices. The closed-core design guarantees stability and accuracy of measurements.

Construction and application

The TI-125-5 current transformer is a single-phase device designed for mounting on panels or busbars. Its main task is to safely transmit current intensity information to measuring devices such as meters, power quality analyzers, or protection systems. Thanks to its accuracy class of 0.5, it ensures high measurement accuracy, which is crucial in applications requiring high data reliability. This transformer is used in circuits with a rated primary current of 125A, converting it into a safe secondary signal of 5A.

Key features and benefits

• High accuracy: Accuracy class 0.5 guarantees precise measurements, minimizing errors and providing reliable data. This is particularly important in billing and energy consumption monitoring applications.
• Safety: Galvanic isolation between the primary and secondary circuits provides protection against electric shock and damage to connected devices. The insulation withstand voltage is 3 kV/1 min.
• Solid construction: Made of high-quality materials, it ensures durability and reliability of the device even in harsh working conditions (ambient temperature from -5°C to 40°C).
• Easy installation: Designed for mounting on panels or busbars, which facilitates its integration with existing electrical infrastructure.
• Versatility: Possibility of mounting in vertical or horizontal position increases installation flexibility.
• Screw terminals: Secondary circuit connection is made using screw terminals (4 mm²) ensuring a secure and durable connection of wires.
• Touch protection: Design with touch protection increases safety of use.

Additional information: The rated power of the transformer is 2.5 VA, and the operating frequency is 50÷60 Hz. The safety factor FS is less than 5, which confirms its reliability in overload situations. The passage diameter is 22 mm, allowing it to be used with wires of appropriate thickness.