CR4420-100

Current Sensors Overview

The CR4420-100 is a solid-core AC current transducer from the CR4400 series, designed for average RMS measurement. It features a single channel with a 100A input range and bidirectional capability. The device provides an analog output proportional to the measured current, typically available in 0-5VDC, 0-10VDC, or 4-20mADC configurations. Operating on a 24V supply, it supports frequencies from 50Hz to 400Hz. Accuracy is rated at ±0.5%, with a response time of 250ms. The module is constructed for DIN rail or panel mounting and operates within a temperature range of 0°C to 60°C.

Current Sensors Feature Summary

• Produces a DC output signal proportional to the average RMS input AC current
• Designed for multi-point current sensing applications
• Features connection diagram printed directly on the case for simplified installation
• Interfaces with most commercially available instrumentation

Current Sensors Applications

• Multi-point current sensing and control panels
• Motor fault monitoring
• Heating element monitoring
• Lighting element monitoring

Current Sensors Procurement Notes

Verify the specific output configuration required, as the CR4420-100 model designation may correspond to different output types such as voltage or current signals depending on the manufacturer's suffix conventions. Confirm that the 100A input range aligns with the application's maximum expected load. Ensure the operating frequency range of 50Hz to 400Hz is compatible with the system power source. Check for any specific mounting hardware requirements for DIN rail or panel installation.

Current Sensors Selection Notes

Select this component when average RMS AC current measurement is required for single-phase applications up to 100A. The CR4420-100 is suitable for environments requiring high accuracy (±0.5%) and bidirectional sensing. Consider the physical dimensions and mounting style (DIN rail or panel) during integration. Verify that the available output signal type matches the receiving instrumentation's input requirements without additional signal conditioning.

Current Sensors Part Context

This part belongs to the CR4400 series of current transducers and transmitters by CR Magnetics Inc. The series is characterized by low-cost construction and high accuracy, designed to interface with standard industrial instrumentation. The CR4420-100 specifically denotes a single-element design with a 100A input range, distinguishing it from other variants like the CR4410 or CR4420-50 which offer different current capacities.

Current Sensors Replacement Considerations

Direct replacements must match the 100A input range, single-channel configuration, and average RMS functionality. Verify compatibility with the existing 24V supply and output signal type. Cross-reference with other CR4400 series models if minor parameter adjustments are needed, but ensure the replacement maintains the same mounting style and accuracy specifications.