2277653

Overview

The Phoenix Contact 2277653 is a window-type current transformer designed for industrial applications. It features a primary current rating of 500 A AC and a secondary output of 5 A AC. The device operates within a frequency range of 50 Hz to 60 Hz and holds an accuracy class of 1. With a rated power of 10 VA, it supports thermal continuous current at 1.2 times the nominal value and thermal short-time current at 60 times the nominal value. The unit measures 80 mm in height and 60 mm in length, suitable for DIN rail or panel mounting.

Feature Summary

• Window-type construction for easy installation around conductors
• High precision accuracy class 1 for reliable measurement
• Supports high thermal overload conditions up to 60 times nominal current

Applications

• Industrial electrical monitoring systems
• Energy management and metering panels
• DIN rail mounted control cabinets

Procurement Notes

Verify the specific datasheet version for the 2277653 model to confirm mechanical dimensions and terminal compatibility. Ensure the application environment matches the specified frequency range of 50-60 Hz. Cross-reference the 10 VA burden capacity with connected instrumentation requirements to prevent saturation. Confirm mounting style aligns with existing panel infrastructure.

Selection Notes

Select this component when a 500 A primary current transformation to 5 A secondary output is required. The accuracy class 1 specification makes it suitable for billing or precise monitoring tasks. Consider the 10 VA rated power to ensure downstream devices do not exceed the transformer's capacity. The window design facilitates retrofitting without disconnecting primary cables.

Part Context

This part belongs to the PACT MCR-V2 series of current transformers from Phoenix Contact. The series offers various primary current ratings and accuracy classes. The 2277653 specifically addresses high-current measurement needs with robust thermal performance characteristics compared to lower-rated models in the same product family.

Replacement Considerations

Direct substitutes include other Phoenix Contact window-type transformers with matching 500 A primary and 5 A secondary ratings. Verify that alternative parts maintain the same accuracy class 1 and 10 VA burden capacity. Check physical dimensions to ensure compatibility with existing DIN rail or panel cutouts.