855-9450/2000-1751

Current Sense Transformers Overview

The WAGO 855-9450/2000-1751 is a Rogowski coil current transformer designed for non-invasive AC current measurement. It features a primary rated current of 1000 A and an output signal of 22.5 mV per kA. The device operates within a frequency range of 50 Hz to 60 Hz and supports a conductor feedthrough diameter of 175 mm. It includes a 4.5 m cable length and utilizes a bayonet connector. Rated insulation voltage is 1000 V Cat. III / 600 V Cat. IV, with an operating temperature range of -40°C to +80°C.

Current Sense Transformers Feature Summary

• Split core design allows installation without disconnecting the primary conductor
• No saturation effects enable accurate measurement across wide primary current ranges
• Class 1 measurement accuracy per EN 61869 standard
• Sealable bayonet catch ensures secure connection and environmental protection

Current Sense Transformers Applications

• Retrofitting existing systems for energy data acquisition
• Industrial process monitoring where circuit interruption is not feasible
• Space-saving energy management installations
• Measurement of high-current conductors requiring large feedthrough diameters

Current Sense Transformers Procurement Notes

Verify that the required conductor diameter does not exceed 175 mm. Confirm compatibility with signal conditioning equipment accepting 22.5 mV/kA input. Ensure the application environment falls within the -40°C to +80°C operational range. Check that the 4.5 m cable length meets distance requirements between the coil and the measuring instrument.

Current Sense Transformers Selection Notes

Select this model when non-invasive measurement is required for currents up to 1000 A. The 175 mm opening accommodates larger busbars or cables compared to smaller variants. Choose this unit if Class 1 accuracy is mandated by EN 61869. Consider the 4.5 m cable length for integration distances; shorter or longer options are available in other part numbers.

Current Sense Transformers Part Context

This component belongs to the WAGO 855 Series Rogowski coils, which are engineered for space-efficient energy monitoring. The series offers various coil diameters (70, 125, and 175 mm) to suit different conductor sizes. These devices replace traditional current transformers in retrofit scenarios, providing high resolution without saturation issues.

Current Sense Transformers Replacement Considerations

Direct substitutes include other 855 Series models with different diameters or cable lengths, such as 855-9450/2000-1251 (125 mm) or 855-9450/2000-701 (70 mm). Ensure any replacement maintains the 1000 A rating and 22.5 mV/kA output specification.