855-4005/200-101

Current Sense Transformers Overview

The WAGO 855-4005/200-101 is a split-core current transformer designed for feedthrough measurement applications. It features a primary rated current of 200 A and a secondary rated current of 5 A. The device has a rated power of 1 VA and an accuracy class of 1. This component is engineered to facilitate the retrofitting of existing electrical systems without interrupting the current path.

Current Sense Transformers Feature Summary

• Split-core design enables installation around existing conductors without disconnecting the circuit
• Compact form factor suitable for retrofitting into established electrical infrastructure
• Feedthrough functionality allows for continuous monitoring of primary current flow

Current Sense Transformers Applications

• Retrofitting existing electrical systems for current monitoring
• Measurement applications requiring non-intrusive conductor access
• Industrial automation energy management systems

Current Sense Transformers Procurement Notes

Verify that the specific part number matches the required primary current rating of 200 A and secondary output of 5 A. Confirm the accuracy class requirement aligns with application needs, as this model specifies class 1. Ensure the physical dimensions and opening size are compatible with the target conductor diameter before procurement to guarantee proper fit and measurement integrity.

Current Sense Transformers Selection Notes

Select this model when retrofitting is necessary to avoid circuit interruption. Choose based on the 200 A primary current capacity and 1 VA burden capability. Consider the split-core mechanism for ease of installation on fixed busbars or cables where traditional through-hole transformers cannot be used. Verify environmental compatibility if installed in harsh industrial settings.

Current Sense Transformers Part Context

This component belongs to the WAGO 855 series of compact split-core current transformers. The series is characterized by its ability to measure AC currents in existing installations. The 855-4005/200-101 variant specifically addresses the need for measuring higher currents up to 200 A while maintaining standard 5 A secondary output for connection to meters or PLCs.

Current Sense Transformers Replacement Considerations

Direct substitutes include other models within the WAGO 855 series with matching 200 A primary ratings, such as the 855-4005/200-101 variants with different accuracy classes if available. Cross-referencing with other manufacturers requires verifying identical primary/secondary ratios, accuracy class, and physical mounting constraints.