Current transformer 150/5A Ø22, class 0.2s TI-150-5-02S

Current transformer – precise measurement, reliable protection

A current transformer is a key component in measurement and protection systems. It is used to safely and accurately convert large currents into values suitable for measuring, control and protection devices. This model, with a ratio of 150/5A, is designed for use in single-phase circuits where high measurement accuracy and reliable operation are required.

Construction and application

The transformer is characterized by a closed-core design, which ensures parameter stability and resistance to interference. Its main task is to provide a proportional current signal to devices monitoring the condition of the electrical installation. This makes it possible to effectively protect against overloads and short circuits, as well as accurately settle energy consumption. Accuracy class 0.2S guarantees high measurement reliability, which is particularly important in applications requiring compliance with strict standards.

Key features and benefits

• High accuracy: Accuracy class 0.2S ensures minimal measurement errors, which translates into precise readings and reliable operation of the protection system.
• Safety: The transformer allows measurement of large currents without direct contact with dangerous voltage, protecting personnel and equipment.
• Wide operating temperature range: The transformer maintains its properties over a wide temperature range from -50°C to 85°C, allowing it to be used in harsh environmental conditions.
• Compliance with standards: Meets the requirements of PN-EN 61869-1:2009 and PN-EN 61869-2:2013-06, which confirms its quality and safety.
• Durable construction: Made of high-quality materials, it ensures long-lasting and trouble-free operation.
• Universal mounting: Possibility of mounting on a panel or on a busbar facilitates installation in various configurations.
• Screw terminals: S1/S2 connection via 4 mm² screw terminals ensures a secure and durable connection of the wires.

Technical parameters in practice

The transformer power of 1.5 VA ensures stable operation even under high secondary loads. The maximum operating voltage of 0.66 kV AC makes it suitable for use in medium-voltage networks. The safety factor FS below 5 guarantees additional protection against damage caused by overvoltage. The nominal secondary current of 5 A is a standard in most measurement and control systems. The insulation withstand voltage of 3 kV/1 min provides effective protection against electric shock.

This current transformer is a solid solution for installers and end-users looking for a reliable and precise device for current measurement and electrical installation protection.