855-4101/200-001

Current Sense Transformers Overview

The WAGO 855-4101/200-001 is a split-core current transformer designed for chassis mounting. It features a primary rated current of 200 A and a secondary rated current of 1 A, resulting in a current ratio of 200:1. The device operates within a frequency range of 50 Hz to 60 Hz and has a rated power of 0.2 VA with an accuracy class of 1. It includes a 3 m cable length and supports a rated short-time thermal current of 60 times the nominal input current for 1 second.

Current Sense Transformers Feature Summary

• Split-core design enables installation without interrupting ongoing processes or breaking the current path.
• Chassis mount configuration provides secure physical attachment for industrial environments.
• Class 1 measurement accuracy complies with EN 61869 standards for precise data acquisition.

Current Sense Transformers Applications

• Retrofitting existing electrical systems for energy data acquisition
• Industrial automation current monitoring
• Space-saving energy management installations

Current Sense Transformers Procurement Notes

Verify that the required primary current rating matches the application load of 200 A. Confirm the secondary output requirement is 1 A to ensure compatibility with downstream measuring instruments. Check that the included 3 m cable length meets the distance requirements between the transformer and the readout device. Ensure the operating frequency aligns with the system's 50 Hz or 60 Hz supply. Validate chassis mounting space availability for the unit dimensions.

Current Sense Transformers Selection Notes

Select this model when non-intrusive installation on existing busbars or cables is necessary. Choose this variant if Class 1 accuracy per EN 61869 is mandated for billing or high-precision monitoring. Consider the 200 A primary rating to avoid saturation during normal operation. Verify that the 0.2 VA burden capacity suffices for the connected metering device. Evaluate the 3 m fixed cable length against routing constraints in the installation area.

Current Sense Transformers Part Context

This component belongs to the WAGO 855 series, which focuses on compact, space-saving current measurement solutions. The series utilizes modern production methods to achieve high resolution and accuracy. These transformers are engineered specifically for retrofitting scenarios where traditional solid-core transformers cannot be installed without system downtime.

Current Sense Transformers Replacement Considerations

Public confirmed substitute part numbers only; omit otherwise.

Current Sense Transformers FAQ

Does this transformer require breaking the conductor for installation?

No, the split-core design allows the transformer to be clamped around an existing conductor without interrupting the circuit or breaking the current path.

What is the maximum short-time thermal current capability?

The rated short-time thermal current (Ith) is 60 times the nominal input current (IN) for a duration of 1 second.