CR4111-75

Current Sensors Overview

The CR4111-75 is a true RMS AC current transducer manufactured by CR Magnetics Inc. It features a single-element solid core design with a primary current rating of 75A. The device operates within a frequency range of 20Hz to 5kHz and provides a secondary output voltage of 0V to 10V. It requires a 24V supply voltage with a maximum supply current of 25mA. The unit offers bidirectional measurement capability with an accuracy of ±0.5% and a response time of 250ms. It supports DIN rail or panel mounting in a module package and functions within a temperature range of 0°C to 60°C.

Current Sensors Feature Summary

• True RMS AC current sensing technology for accurate waveform representation
• Solid core construction eliminating the need for split cores or air gaps
• Bidirectional measurement capability for positive and negative current flow
• Integrated conditioning circuitry providing a standardized voltage output

Current Sensors Applications

• Industrial power monitoring systems requiring precise AC current data
• Motor control applications needing real-time current feedback
• Power quality analysis equipment measuring harmonic distortion
• Energy management systems tracking consumption patterns

Current Sensors Procurement Notes

Verify that the specific order matches the CR4111-75 part number exactly, as the CR4111 series includes variants with different current ratings such as 10A, 20A, and 100A. Confirm that the application environment remains within the specified 0°C to 60°C operating temperature range. Ensure the primary conductor size accommodates the solid core design without physical interference. Check for any required certifications or compliance standards relevant to your regional installation requirements before finalizing procurement.

Current Sensors Selection Notes

Select this model when a 75A primary current rating is required for AC measurements. Choose the CR4111-75 over other series members if the application demands a 0V to 10V analog output rather than a current output. Consider the solid core design for installations where breaking the primary circuit is not feasible. Verify that the 20Hz to 5kHz frequency range covers all operational harmonics present in the system. Ensure the mounting infrastructure supports DIN rail or panel installation methods compatible with the module form factor.

Current Sensors Part Context

This component belongs to the CR4111 series of current sensors from CR Magnetics Inc., which are designed for industrial automation and power distribution applications. The series utilizes transformer-based sensing with integrated signal conditioning to provide isolated, accurate measurements. The CR4111-75 specifically addresses higher current loads compared to lower-rated siblings like the CR4111-10 or CR4111-20, offering a robust solution for heavy-duty machinery and large-scale electrical infrastructure monitoring.

Current Sensors Replacement Considerations

Direct substitutes include other CR4111 series models with adjusted current ratings if the 75A limit is not strictly required. Cross-reference with CR4110S series modules if triple-pass-through functionality or three-channel measurement is needed instead of single-phase sensing. Verify pinout compatibility and output scaling when replacing with generic AC current transformers to ensure signal integrity in existing control loops.