2277129

Overview

Phoenix Contact part number 2277129 is a window-type current transformer from the PACT MCR series. It features a 400 A AC primary current and a 5 A AC secondary current output. The device has an accuracy class of 1 and a rated power of 7.5 VA. It supports frequencies of 50 Hz to 60 Hz. The unit includes a pluggable design for DIN rail or panel mounting.

Feature Summary

• Window-type construction for through-bar current measurement
• Pluggable interface for simplified installation
• Class 1 accuracy rating for precise monitoring

Applications

• Industrial energy metering systems
• Electrical distribution panel monitoring
• Power quality analysis equipment

Procurement Notes

Verify the specific model designation against official Phoenix Contact documentation to ensure compatibility with existing control infrastructure. Confirm that the 400:5 ratio and Class 1 accuracy meet the requirements of the target application before finalizing procurement decisions.

Selection Notes

Select this component when a 400 A primary current range is required for AC systems operating at 50 Hz or 60 Hz. Ensure the load burden does not exceed the 7.5 VA rated power capability. Verify that the physical bore dimensions accommodate the conductor size in the intended installation environment.

Part Context

This current transformer belongs to the PACT MCR series, designed for industrial automation and process control applications. It provides isolated secondary signals proportional to the primary current for connection to measuring instruments or protection relays within electrical networks.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided source material.