CR4450-20

Current Sensors Overview

The CR4450-20 is a two-element current transducer manufactured by CR Magnetics, designed to produce a DC output signal proportional to the average RMS input AC current. It features a split core design with a .26-inch window and supports an input range of 0.5 to 30 AAC. The device provides high accuracy interfaces with commercially available instrumentation and offers selectable outputs including 0-5 VDC, 0-10VDC, or 4-20 mADC. Constructed for DIN rail or panel mounting, it meets UL 61010B-1, CAN/CSA-C22.2, IEC 61010-1, and BS EN 61010-1 regulatory standards.

Current Sensors Feature Summary

• Split core construction allows for easy installation around conductors without circuit interruption
• Selectable analog output signals compatible with standard industrial instrumentation
• Regulatory compliance with major international safety standards for electrical equipment

Current Sensors Applications

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

Current Sensors Procurement Notes

Verify that the specific order corresponds to the CR4450-20 model variant rather than other series members like CR4410 or CR4460. Confirm the required output signal type (0-5 VDC, 0-10 VDC, or 4-20 mADC) matches the application requirements, as this parameter may vary across the product line. Ensure the procurement documentation explicitly references the split core design and the .26-inch window specification to guarantee physical compatibility with existing busbar or cable configurations.

Current Sensors Selection Notes

Select the CR4450-20 when the application requires monitoring currents within the 0.5 to 30 AAC range using a split core interface. This model is suitable for environments where DIN rail or panel mounting is preferred over other enclosure types. Consider this component for multi-point sensing applications requiring high accuracy and direct interfacing with commercial instrumentation. Verify that the operating temperature range and power supply requirements align with the system's environmental conditions before finalizing the selection.

Current Sensors Part Context

The CR4450-20 belongs to the CR Magnetics Series Current Transducers and Transmitters family. This series is engineered to provide reliable DC output signals proportional to AC input currents. The family includes various models such as the CR4410, CR4411, CR4420, CR4450, and CR4460, which differ primarily in element count, window size, and input ranges. The CR4450-20 specifically addresses the need for dual-element sensing within a compact form factor.

Current Sensors Replacement Considerations

Direct replacement options within the same manufacturer line include the CR4450 and CR4460 models, provided the input range and window dimensions are compatible. For single-element applications, the CR4410 or CR4420 series may serve as alternatives if the current range fits within their 0.5 to 600 AAC specifications. Always verify that the substitute part maintains the required output signal type and regulatory certifications.