Current transformer CT 250/5 A diameter 26 / 40.5x12.5 412116

Current Transformer for Precise Measurements

The current transformer CT 250/5 A is a device designed for safe and accurate current measurement in electrical circuits. It is indispensable wherever galvanic isolation between the primary and secondary circuits is required, enhancing operational safety and protecting measuring instruments. This model is suitable for use in industrial, commercial, and residential installations.

Construction and Specifications

The transformer features a bore diameter of 26 mm and dimensions of 40.5 x 12.5 mm. The rated primary current is 250 A, with a secondary current of 5 A — this configuration enables effective adaptation to various measurement ranges. With an accuracy class of 0.5, it ensures reliable measurement results, which is critical in applications demanding high precision. Constructed from high-quality materials, the transformer guarantees long-term reliable operation. The secondary circuit connection is implemented via screw terminals — a solution ensuring secure and durable wiring connections.

Applications and Benefits

• Protection and Measurement: Enables safe current measurement without direct contact with high-voltage circuits.
• Accuracy: Accuracy class 0.5 ensures precise readings essential for energy monitoring and control systems.
• Safety: Provides galvanic isolation, protecting personnel and equipment from electric shock and damage.
• Versatility: Suitable for use in various types of electrical installations — from industrial to residential.
• Legalization: The transformer is officially legalized, confirming compliance with applicable standards and regulations.
• Overload Factor FS 5: Allows short-term overloads without device damage — particularly useful during motor startups or when powering devices with high inrush currents.
• Low Power Consumption: Power draw of only 3 W minimizes energy losses in the measurement circuit.
• Touch Protection: Enhances safety during use, especially in public or unauthorized-access areas.

The current transformer CT 250/5 A is a robust and reliable tool for every installer and end-user seeking precise and safe current measurement solutions.