Current transformer CT 3-PHASE 250/5 A 20.5×5.5 412157

Three-phase current transformer – precise measurement and protection

This three-phase current transformer, with a rated primary current of 250 A and secondary current of 5 A, is a reliable tool for measuring and monitoring load in electrical installations. Designed for accuracy and safety, it performs excellently in both industrial and commercial applications. Its compact dimensions (20.5 x 5.5 mm) enable easy integration into existing infrastructure.

Construction and application

This current transformer, with an accuracy class of 1, is certified, ensuring its reliability and compliance with applicable standards. It is designed for use in three-phase circuits and features a single primary input. The 8 mm bore diameter allows installation on conductors of varying thickness. The screw-type secondary connection ensures simple and rapid installation. The overload factor FS 5 guarantees stable operation even during short-term overloads.

Key features and benefits

• High accuracy: Accuracy class 1 ensures precise current measurements, critical for efficient energy management and optimal installation performance.
• Safety: Touch protection minimizes the risk of electric shock during operation and maintenance.
• Certified: Guarantees compliance with standards and measurement reliability—essential for energy supplier billing and quality control.
• Compact dimensions: Facilitate installation in confined spaces and seamless integration with existing infrastructure.
• Robust construction: Ensures long-term, reliable operation under various environmental conditions.
• Low power consumption: Energy consumption of only 3 W minimizes energy losses in the installation.
• Apparent power: Rated secondary apparent power is 3 VA, contributing to stable device operation.

This current transformer is an ideal solution for installers seeking a reliable and precise tool for measuring current in three-phase installations, as well as for end-users focused on efficient electrical energy management. Its robust construction and high manufacturing quality guarantee long-term, fault-free operation.