SCT-1250-400

Current Sensors Overview

The Magnelab SCT-1250-400 is a split-core current transformer designed for unidirectional AC current sensing. It features a single pass-through configuration with an integrated conditioning module. The device supports a rated primary current of 400A and operates within a frequency range of 50Hz to 400Hz. It provides a Class 1 accuracy rating when functioning between 10% and 130% of the rated input current. The sensor utilizes a 32mm aperture, accommodating conductors up to 1.25 inches in diameter.

Current Sensors Feature Summary

• Split-core design enables installation without disconnecting the primary conductor
• Integrated conditioning module processes signals for direct monitoring applications
• Class 1 accuracy ensures reliable measurement across standard operating ranges
• Unidirectional sensing capability tailored for specific power flow directions

Current Sensors Applications

• Power and energy monitoring systems
• Industrial electrical distribution panels
• AC current sensing in variable frequency drives
• Electrical load management and metering

Current Sensors Procurement Notes

Verify that the required aperture size matches the physical dimensions of the target conductor, as the 32mm opening accommodates specific cable diameters. Confirm that the application involves unidirectional AC current, as this model is not suitable for bidirectional or DC measurements. Ensure the operating frequency falls within the 50Hz to 400Hz specification to maintain Class 1 accuracy standards. Check for necessary mounting hardware compatibility if panel integration is planned.

Current Sensors Selection Notes

Select this model when a non-intrusive installation method is required for high-current AC circuits up to 400A. The split-core architecture is ideal for retrofits where breaking the circuit is impractical. Consider the integrated conditioning module if signal processing is needed directly from the sensor. Evaluate the frequency range requirements against the source to ensure operational compatibility within the specified 50Hz to 400Hz limits.

Current Sensors Part Context

This component belongs to the SCT series of split-core current transformers manufactured by Magnelab. The series offers various current ratings and aperture sizes to suit different conductor dimensions. The SCT-1250-400 specifically addresses applications requiring robust sensing for currents up to 400A with a standardized 32mm opening, fitting common industrial cable profiles.

Current Sensors Replacement Considerations

Direct substitutes include other models within the Magnelab SCT series, such as the SCT-1250-200 or SCT-1250-100, which share identical physical dimensions but differ in current rating. Cross-brand replacements must match the 32mm aperture, 400A rating, and 50-400Hz frequency range to ensure functional equivalence.