855-4005/250-100

Current Sense Transformers Overview

The WAGO 855-4005/250-100 is a split-core current transformer designed for chassis mounting. It features a primary rated current of 250 A and a secondary rated current of 5 A. The device operates within a frequency range of 50 Hz to 60 Hz and has a rated power of 1 VA. It meets accuracy class 0.5 standards, ensuring precise current measurement for industrial applications.

Current Sense Transformers Feature Summary

• Split-core design facilitates installation on existing conductors without disconnecting the circuit.
• Chassis mount configuration provides secure positioning in control panels.
• High accuracy class ensures reliable data transmission for metering purposes.

Current Sense Transformers Applications

• Retrofitting existing electrical systems with current monitoring capabilities
• Industrial automation energy management
• Electrical panel metering

Current Sense Transformers Procurement Notes

Verify that the primary conductor diameter matches the transformer's window size before installation. Confirm that the burden load connected to the secondary terminals does not exceed the 1 VA rated power to maintain accuracy class 0.5 specifications. Ensure the operating frequency aligns with the 50 Hz or 60 Hz requirement.

Current Sense Transformers Selection Notes

Select this model when retrofitting circuits carrying up to 250 A primary current. The split-core architecture is essential where permanent disconnection of the main conductor is impractical. Choose this variant if chassis mounting is required rather than DIN rail installation. Verify compatibility with downstream devices expecting a 5 A secondary output.

Current Sense Transformers Part Context

This component belongs to the WAGO 855 series of compact split-core current transformers. The series is engineered for easy integration into existing electrical infrastructure. The specific model designation indicates the 250 A primary rating and standard 5 A secondary output configuration typical of this product line.

Current Sense Transformers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Consult manufacturer catalogs for equivalent split-core transformers with matching 250 A primary and 5 A secondary ratings.