ABB current transformer

The ABB CM-CT 100/5 current transformer is used for precise current measurement in low-voltage systems and supports measurement and monitoring tasks in energy distribution systems. It operates with a primary rated current of 100A and delivers a secondary current of 5A for measuring instruments or protection technology. Accuracy class1 ensures reproducible measurement values in professional environments. The compact housing with a 26mm opening diameter enables fast installation in control cabinets. The transformer is suitable for industrial applications and energy management systems where reliable current sensing is required.

• TechnologyThe current transformer operates as a clip-on design for safe galvanic isolation between the primary and measuring circuits. Accuracy class1 and a secondary rated apparent power of 2.5VA enable stable signal acquisition for measuring and evaluation devices. The structural design with a robust plastic housing ensures reliable operation even at higher continuous currents. With its clear design for 100A/5A, it is particularly suitable for precise measurement tasks in energy distribution and monitoring systems.
  
  Key technical characteristics
  • Accuracy class1 for stable and reproducible measurement signals.
  • Secondary power of 2.5VA for reliable device interfacing.
  • Clip-on design for safe galvanic isolation.
• ConnectivityThe secondary connection is made via screw terminals and allows a robust connection to measuring devices or protection components. The transformer provides a standardized 5‑A signal that is compatible with common energy meters, analyzers, and monitoring systems. This allows the measuring current to be safely and reliably integrated into higher-level energy management or control systems.
  
  Connection features
  • Secondary connection via screw terminal for a permanent connection.
  • Standardized 5‑A output signal for broad system integration.
• CompatibilityThe CM‑CT100/5 is compatible with measuring and monitoring systems that expect a 5‑A measurement signal. Thanks to its design with a 26‑mm pass-through opening, it can be used in typical energy distributions and industrial networks. The structural design simplifies installation in existing control cabinet systems.
• Installation conceptThe current transformer features a clip-on design with a 26‑mm opening, allowing conductors or busbars to be easily routed through it. Supplied mounting elements such as base brackets or protective caps support secure installation. The compact housing makes placement in tight control cabinets easier.
  
  Installation aspects
  • Clip-on mounting for quick installation without extensive modifications.
  • Compact design for confined cabinet environments.