855-9450/2000-701

Current Sense Transformers Overview

The WAGO 855-9450/2000-701 is a Rogowski coil current sensor designed for high-resolution energy data acquisition. It features a primary rated current of 4000 A and an output signal of 22.5 mV per kA. The device supports a measurement frequency range of 50 Hz to 60 Hz with a bandwidth up to 344 kHz. It includes a 4.5-meter cable length and accommodates a feedthrough for measurement conductors up to 70 mm in diameter. Operating within an ambient temperature range of -40°C to 80°C, this component achieves Class 1 measurement accuracy per EN 61869 standards.

Current Sense Transformers Feature Summary

• Utilizes Rogowski technology to measure wide primary current ranges without saturation effects.
• Features a non-magnetic split core design that allows for easy retrofitting without interrupting ongoing processes.
• Provides Class 1 measurement accuracy per EN 61869 standards for precise energy data acquisition.

Current Sense Transformers Applications

• Retrofitting existing systems for space-saving energy data acquisition
• Measuring high primary currents up to 10,000 A without loss of accuracy
• Integration with WAGO interface electronics such as the 857-552 current signal conditioner

Current Sense Transformers Procurement Notes

Verify the specific ordering suffix matches the required cable length and core dimensions. Confirm compatibility with the intended WAGO signal conditioning modules, such as the 857-552 or 750 series. Ensure the application environment stays within the specified -40°C to 80°C operating temperature range. Check that the conductor diameter does not exceed the 70 mm feedthrough limit.

Current Sense Transformers Selection Notes

Select this model when high-current measurement up to 4000 A is required without magnetic saturation risks. Choose this variant for applications needing a 4.5-meter cable and a 70 mm aperture. Consider this part for retrofits where process interruption must be avoided. Verify that the 22.5 mV/kA output signal aligns with the input requirements of the connected WAGO interface module.

Current Sense Transformers Part Context

This component belongs to the WAGO 855 series of Rogowski coils, which are engineered for space-saving and high-resolution measurements. The series is designed to complement WAGO's I/O system and interface electronics, providing a flexible solution for industrial current sensing. These coils are characterized by their closed-air construction and ability to handle large currents efficiently.

Current Sense Transformers FAQ

Does this Rogowski coil suffer from saturation effects?

No, the Rogowski technology used in this component allows it to measure a wide primary current range without saturation effects, maintaining accuracy even at high currents.

What is the maximum conductor diameter this coil can accommodate?

The coil features a feedthrough designed for measurement conductors with a maximum diameter of 70 mm.