855-301/400-1001

Current Sense Transformers Overview

The WAGO 855-301/400-1001 is a pluggable current transformer designed for precise electrical measurement applications. It features a primary rated current of 400 A and a secondary rated current of 1 A, providing a standard 400:1 transformation ratio. The unit operates with a rated power of 10 VA and maintains an accuracy class of 1, ensuring reliable signal integrity. Constructed for chassis mounting, it includes a window diameter of 26 mm to accommodate conductors within the specified frequency range of 50 Hz to 60 Hz.

Current Sense Transformers Feature Summary

• Pluggable construction allows for easy installation and maintenance within control panels.
• Class 1 accuracy ensures high precision in current monitoring and metering tasks.
• Standardized 1 A secondary output facilitates direct connection to compatible measuring instruments.

Current Sense Transformers Applications

• Industrial power distribution systems requiring accurate current monitoring
• Electrical metering panels for energy consumption tracking
• Automation equipment with integrated safety and control circuits

Current Sense Transformers Procurement Notes

Verify that the application requires a 400 A primary rating and 1 A secondary output before procurement. Confirm that the conductor size fits within the 26 mm window diameter. Ensure the system frequency matches the 50 Hz to 60 Hz operational range. Check that the load burden does not exceed the 10 VA rated power to maintain Class 1 accuracy. Validate chassis mounting compatibility with the existing panel design.

Current Sense Transformers Selection Notes

Select this component when a dedicated pluggable solution is preferred over split-core or fixed transformers. Consider the 26 mm window size relative to the cable thickness to ensure proper fit. Evaluate the 10 VA burden capacity against the connected instrument's requirements. Choose this model if Class 1 accuracy is mandatory for billing or critical monitoring purposes. Assess the need for a 400 A primary rating to avoid saturation during peak loads.

Current Sense Transformers Part Context

This part belongs to the WAGO 855 Series, which offers a range of plug-in current transformers for various current ratings. The series is designed to integrate seamlessly with WAGO interface modules and other industrial automation components. It provides a standardized form factor for consistent installation across different projects. The 855 Series supports efficient signal processing by adapting high currents to measurable levels.

Current Sense Transformers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing wiring and mounting structures if considering alternative brands. Ensure any replacement meets the same 400:1 ratio and Class 1 accuracy requirements.