855-305/250-509

Current Sense Transformers Overview

The WAGO 855-305/250-509 is a pluggable current transformer designed for chassis mounting. It features a primary rated current of 250 A and a secondary rated current of 5 A, providing a transformation ratio of 250:5. The device has a rated power of 5 VA and an accuracy class of 0.5. It operates within a frequency range of 50 Hz to 60 Hz and includes a window diameter of 26 mm for conductor passage.

Current Sense Transformers Feature Summary

• Pluggable design facilitates easy installation and replacement in industrial control panels.
• Chassis mount configuration ensures secure positioning within electrical enclosures.
• Class 0.5 accuracy rating supports precise current measurement applications.

Current Sense Transformers Applications

• Industrial current monitoring systems
• Electrical panel metering
• Power distribution protection circuits

Current Sense Transformers Procurement Notes

Verify the specific suffix codes against official WAGO documentation to ensure correct voltage and insulation ratings. Confirm that the 250 A primary current and 26 mm window dimensions match the target conductor size. Check for updated environmental compliance declarations prior to final procurement approval.

Current Sense Transformers Selection Notes

Select this model when a 250:5 ratio and 5 VA burden are required for accurate metering. Ensure the installation environment supports chassis mounting and accommodates the 26 mm aperture. Validate compatibility with downstream instruments accepting 5 A secondary inputs at 50/60 Hz frequencies.

Current Sense Transformers Part Context

This component belongs to the WAGO 855 series of plug-in current transformers. These devices are engineered for industrial interface modules and energy management systems. The series provides standardized solutions for current sensing in commercial and industrial electrical infrastructure.

Current Sense Transformers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify exact technical specifications before considering alternative manufacturers or different WAGO series models.

Current Sense Transformers FAQ

What is the maximum primary current for this transformer?

The maximum primary rated current is 250 A.

Does this unit support both 50 Hz and 60 Hz frequencies?

Yes, the device is rated for operation at both 50 Hz and 60 Hz.