Current transformer CTR-30 300/5 CL.0,5 004805510

Current Transformers CTR – reliable measurement and protection

Current transformers of the CTR series are key components in control and measurement systems, used in network parameter analyzers and automatic power factor correction (PFC) systems. The CTR-30 300/5 CL.0,5 model is a proven element that ensures precise current measurement in electrical installations. It is a current transformer designed to work with circuits with a rated primary current of 300A and a secondary current of 5A.

Design and application

This transformer is characterized by a solid construction and a high accuracy class of 0.5, which guarantees the reliability of measurements. The aperture diameter of 30.5 mm allows mounting on conductors of appropriate diameter. The rated power of the transformer is 10 VA. The use of high-quality materials, such as polycarbonate with glass fiber additive (flame retardancy UL 94V-0), ensures durability and safety of use. This makes the transformer suitable for both demanding industrial conditions and building installations.

Key features and benefits

• Precise measurements: Accuracy class 0.5 ensures reliable current readings, which is important for the proper operation of measurement and protection systems.
• Versatility: The transformer can be mounted directly on the current rail or mounting plate using the included brackets, which facilitates installation and adaptation to different conditions.
• Safety: The housing made of polycarbonate with glass fiber provides resistance to mechanical damage and high temperature, minimizing the risk of failure and fire.
• Convenient installation: The set includes brackets for the wire and current rails, which simplifies the installation process. Connection terminals with a cover (IP20) further increase safety.
• Wide operating temperature range: The transformer maintains its properties in the temperature range from -20°C to +45°C, allowing it to be used in various environments.
• Short-circuit resistance: The thermal short-circuit current (Ith) is 70 x In, and the dynamic short-circuit current (Idyn) is 2.5 x Ith – the transformer is adapted to work in short-term overload conditions.