CR5ARL-751

Current Sense Transformers Overview

The CR5ARL-751 is a non-invasive current sense transformer designed for high-current applications. It features a solid core construction with a primary-to-secondary turns ratio of 750:5, supporting a maximum primary current rating of 750 A. The device operates within a frequency range of 50 Hz to 400 Hz and utilizes a free-hanging in-line mounting style. Physical dimensions include a diameter of 3.560 inches (90.40 mm) and wire leads measuring 24 inches in length. The unit is constructed with an epoxy resin-secured core and complies with UL 1015 standards for wire insulation.

Current Sense Transformers Feature Summary

• Non-invasive solid core design for direct conductor insertion
• High-capacity 750 A primary current handling capability
• Epoxy resin secured core structure for mechanical stability
• Standardized 5 Amp secondary output configuration

Current Sense Transformers Applications

• Industrial motor protection circuits
• Power distribution monitoring systems
• Electrical panel current measurement
• Transformer and generator load sensing

Current Sense Transformers Procurement Notes

Verify the specific frequency requirement against the 50 Hz to 400 Hz operational range before procurement. Confirm that the installation environment accommodates the 3.560-inch diameter physical footprint. Ensure the application voltage does not exceed the isolation ratings specified in the official datasheet. Check for compliance with local safety certifications such as UL or CE if required by the end-use equipment regulations.

Current Sense Transformers Selection Notes

Select this component when a robust, non-invasive solution for measuring currents up to 750 A is required. The fixed 750:5 ratio makes it suitable for standard 5 A secondary instrumentation inputs. Consider the free-hanging mounting style for applications where space constraints preclude PCB-mounted alternatives. Validate that the operating frequency remains within the specified 50 Hz to 400 Hz band to ensure accuracy.

Current Sense Transformers Part Context

This part belongs to the CR5A series from CR Magnetics Inc., which specializes in current sensing transformers. The series is characterized by high linear accuracy and wide bandwidth capabilities. These components are engineered for industrial environments requiring reliable isolation and precise current replication without breaking the primary circuit.

Current Sense Transformers Replacement Considerations

Cross-reference with other models in the CR5A series for similar current ratings. Verify that any substitute maintains the 750:5 turns ratio and compatible physical dimensions for existing mounting configurations.

Current Sense Transformers FAQ

What is the secondary current output?

The secondary output is standardized at 5 Amps corresponding to the full-scale primary current.

How is the core secured?

The core is secured using epoxy resin to ensure mechanical stability during operation.