CR4220-25

Current Sensors Overview

The CR4220-25 is a loop-powered AC current transducer manufactured by CR Magnetics Inc. It features a solid core design with a single element configuration, suitable for monitoring AC sine wave currents within a frequency range of 50Hz to 400Hz. The device accepts an input current range of 0 to 25A and provides a calibrated 4mA to 20mA DC output signal proportional to the average RMS input. It operates with a maximum load resistance of 500 ohms and supports both DIN rail and panel mounting options.

Current Sensors Feature Summary

• Provides remote monitoring of AC sine currents via a calibrated analog output
• Features a solid core single element design for easy installation
• Supports standard DIN rail or panel mounting configurations
• Interfaces directly with most commercially available instruments

Current Sensors Applications

• Multi-point current detection systems
• Remote current monitoring applications
• Motor fault monitoring circuits
• Heating element monitoring setups
• Lighting element monitoring installations

Current Sensors Procurement Notes

Verify that the specific part number matches the required 25A input range and 4-20mA output specification. Confirm compatibility with the system's frequency requirements, specifically the 50Hz to 400Hz operational window. Ensure the mounting environment supports either DIN rail or panel installation as specified by the manufacturer. Check for any specific environmental ratings if deployed in harsh conditions.

Current Sensors Selection Notes

Select this model when a loop-powered solution is required for AC current monitoring without external power supplies for the sensor itself. It is appropriate for applications needing high accuracy and simple wiring interfaces. Consider the 25A input limit and 500 ohm max load when designing the circuit. This component is ideal for replacing older transducers in control panels requiring standardized 4-20mA signals.

Current Sensors Part Context

This component belongs to the CR4220 series of AC current transducers from CR Magnetics. The series is designed for cost-effective current monitoring solutions. The CR4220-25 variant specifically addresses higher current applications up to 25A, distinguishing it from lower-range models like the CR4220-10. It shares the same fundamental loop-powered architecture and mounting capabilities as other units in the family.

Current Sensors Replacement Considerations

When substituting this component, ensure the replacement supports the same 4-20mA output and 50-400Hz frequency range. Verify that the new unit accommodates the 25A input range and 500 ohm load requirement. Physical mounting dimensions must match existing DIN rail or panel cutouts. Compatibility with existing PLC power supplies is essential for successful integration.