855-9450/2000-1251

Current Sense Transformers Overview

The WAGO 855-9450/2000-1251 is a Rogowski coil designed for AC current measurement with a primary rated current of 1000 A. It provides an output signal of 22.5 mV per kA and features a feedthrough diameter of 125 mm for the measurement conductor. The unit includes a 4.5 m cable length and operates within an ambient temperature range of -40°C to +80°C. Rated insulation voltage is 1000 V, ensuring safety in industrial environments.

Current Sense Transformers Feature Summary

• Split coil bobbin design enables easy retrofitting into existing systems without interrupting ongoing processes.
• No saturation effects allow accurate measurement across a wide primary current range.
• Sealable bayonet catch and mounting brackets ensure secure fixation with cable ties.
• High rated insulation voltages support safe operation in demanding electrical setups.

Current Sense Transformers Applications

• Retrofitting energy data acquisition in existing industrial systems
• Measuring AC currents in power distribution networks
• Space-saving energy monitoring applications

Current Sense Transformers Procurement Notes

Verify the specific item number 855-9450/2000-1251 against official WAGO documentation to confirm technical specifications. Ensure compatibility with existing measurement instruments regarding signal output requirements. Check environmental conditions against the stated operating temperature range. Confirm insulation voltage ratings match system safety standards. Validate cable length suitability for installation layout.

Current Sense Transformers Selection Notes

Select this component when space constraints require a non-intrusive current measurement solution. Consider the 125 mm feedthrough diameter for conductor size compatibility. Evaluate the need for high insulation voltage ratings in Cat. III or IV environments. Assess whether the 4.5 m cable length meets distance requirements between the coil and measuring device. Verify that the split-core design aligns with installation accessibility needs.

Current Sense Transformers Part Context

This part belongs to the WAGO 855 Series Rogowski coils, which are engineered for high-resolution current measurement with class 1 accuracy per EN 61869. The series emphasizes space savings and ease of installation through modern production methods. These coils eliminate the need for comparison between coil and measuring instrument due to standardized accuracy levels.

Current Sense Transformers Replacement Considerations

Public confirmed substitute part numbers include 855-9150/2000-3001 and 855-9150/2000. Verify dimensional compatibility and signal output matching before substitution. Ensure replacement parts meet the same insulation voltage and accuracy class requirements.