855-4005/150-101

Current Sense Transformers Overview

The WAGO 855-4005/150-101 is a split-core current transformer designed for chassis mounting. It features a primary rated current of 150 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 with an accuracy class of 1. It includes a 0.5 m cable length and accommodates a maximum input cable diameter of 18 mm.

Current Sense Transformers Feature Summary

• Split-core design allows installation without disconnecting the primary conductor
• Chassis mount configuration for secure integration into electrical panels
• Accuracy class 1 ensures reliable measurement performance

Current Sense Transformers Applications

• Electrical energy metering systems
• Current monitoring in industrial control panels
• Power distribution network measurement

Current Sense Transformers Procurement Notes

Verify that the primary conductor diameter does not exceed 18 mm to ensure proper fit within the split core. Confirm that the connected burden does not exceed 1 VA to maintain accuracy class 1 specifications. Ensure the operating frequency matches the 50 Hz or 60 Hz requirement. Check chassis mounting dimensions against panel layout constraints before procurement.

Current Sense Transformers Selection Notes

Select this model when non-intrusive current measurement is required for conductors up to 18 mm in diameter. Choose based on the 150 A primary rating and 5 A secondary output compatibility with standard meters. Consider the split-core feature for retrofitting existing installations where cable disconnection is impractical.

Current Sense Transformers Part Context

This component belongs to the WAGO 855 series of current transformers, which are engineered for precise current sensing in low-voltage applications. The series offers various primary current ratings and core types to suit different conductor sizes and installation requirements.

Current Sense Transformers Replacement Considerations

Ensure any substitute part maintains the 150/5 A ratio, 1 VA burden limit, and 18 mm max cable diameter. Verify that the replacement also supports split-core installation and chassis mounting to preserve mechanical compatibility.