855-4105/250-101

Current Sense Transformers Overview

The WAGO 855-4105/250-101 is a split-core current transformer designed for energy measurement applications. It features a primary rated current of 250 A and a secondary rated current of 5 A, operating within a frequency range of 50 Hz to 60 Hz. The device achieves an accuracy class of 1 with a maximum rated power of 1 VA. It includes a 0.5 m color-coded connection cable and allows for rapid chassis mounting without interrupting the primary conductor.

Current Sense Transformers Feature Summary

• Split-core design enables installation without breaking the primary circuit
• Hinged construction facilitates rapid mounting on existing conductors
• Integrated 0.5 m color-coded connection cable simplifies wiring

Current Sense Transformers Applications

• Energy metering systems requiring Class 1 accuracy
• Industrial power monitoring where conductor interruption is prohibited
• Chassis-mounted electrical distribution panels

Current Sense Transformers Procurement Notes

Verify that the required primary current rating matches the 250 A specification exactly. Confirm the secondary output requirement is 5 A to ensure compatibility with connected measuring devices. Check that the system frequency aligns with the 50 Hz to 60 Hz operational range. Ensure the mounting environment supports the chassis mount mechanical design.

Current Sense Transformers Selection Notes

Select this model when non-intrusive installation on a 250 A primary conductor is necessary. The split-core architecture is essential for retrofits or existing installations where cable cutting is not feasible. The 1 VA burden capacity suits standard low-power energy meters. Consider the 0.5 m cable length for proximity to the recording unit.

Current Sense Transformers Part Context

This component belongs to the WAGO 855 series of split-core current transformers. These devices are engineered specifically for precise current measurement in energy management contexts. The series offers various primary current ratings while maintaining consistent mechanical and electrical interface standards for modular integration.

Current Sense Transformers Replacement Considerations

Direct substitutes include other WAGO split-core transformers with identical 250 A primary and 5 A secondary ratings, such as part number 855-4105/400-101 if higher capacity is acceptable. Verify that any replacement maintains the same Class 1 accuracy and 1 VA burden specifications.