CR4160-0.5

Current Sensors Overview

The CR4160-0.5 is a bidirectional AC current sensor manufactured by CR Magnetics Inc., designed for precise measurement in phase-fired control systems. It features a dual-pass-through module construction with two channels, supporting an input current range of 0.5A to 30AAC. The device provides a ratiometric output signal ranging from 4mA to 20mA and operates within a frequency band of 20Hz to 5kHz. Key electrical specifications include ±0.5% accuracy, a 250ms response time, and a maximum supply current of 70mA at 24V. It is suitable for chopped wave applications and supports DIN rail or panel mounting.

Current Sensors Feature Summary

• True RMS measurement capability ensures accurate readings for non-sinusoidal and chopped waveforms common in phase-fired control systems.
• Dual-pass-through module design allows for continuous circuit integration without breaking the primary conductor path.
• Bidirectional polarization enables detection and reporting of current flow in both directions, suitable for complex load monitoring.

Current Sensors Applications

• Phase-fired controlled heater systems
• Quickly varying motor loads
• AC variable speed drives
• OEM current sensing continuity

Current Sensors Procurement Notes

Verify that the specific part number suffix corresponds to the required input range, as the CR4160 series utilizes suffixes to denote different amperage ratings. Confirm that the application environment remains within the specified operating temperature range of 0°C to 60°C. Ensure the power supply provides a stable 24VDC source capable of delivering up to 70mA. Check that the mounting infrastructure supports either 35mm DIN rail or panel installation methods as defined by the module's physical dimensions.

Current Sensors Selection Notes

Select this component when high precision is required for AC currents below 30A in environments with distorted waveforms. The 4mA to 20mA output is compatible with standard industrial PLCs and data acquisition systems. Consider the dual-channel configuration if simultaneous monitoring of multiple parameters or redundant sensing is necessary. The bidirectional feature is essential for applications involving regenerative loads or reversible drive systems where current direction changes.

Current Sensors Part Context

This model belongs to the CR4100 Series True RMS Current Transducers, which are engineered for superior accuracy compared to standard transducers. The series includes single, two, and three-element variants with window sizes ranging from 0.26 inches to 0.79 inches. The CR4160 specifically denotes a two-element design optimized for higher current ranges up to 30AAC, distinguishing it from lower-range models like the CR4110 or CR4120.

Current Sensors Replacement Considerations

Direct substitutes within the same family include other CR4160 variants with different current ratings, such as CR4160-15 or CR4160-75, provided the input range matches the application requirements. Split-core versions are available by adding an 'S' suffix to the prefix, though these may not carry UL recognition. Verify that any replacement maintains the 24VDC supply requirement and 4-20mA output compatibility.