SCCT 30/20 150/5A VA 1 CL 0.5 -CE

Current Sense Transformers Overview

The SCCT 30/20 150/5A VA 1 CL 0.5 -CE is a split-core current transformer manufactured by Selec Controls USA Inc., designed for electrical energy measurement applications. It features a primary rated current of 150 A and a secondary rated current of 5 A, providing a transformation ratio of 30:20 as indicated in the model designation. The device offers an accuracy class of 0.5, ensuring precise metering within utility billing standards. It includes a burden rating of 1 VA and carries CE certification for compliance with European safety directives. The unit utilizes a split-core design to facilitate installation on existing busbars or cables without circuit interruption.

Current Sense Transformers Feature Summary

• Split-core construction allows for non-intrusive installation around conductors
• Accuracy class 0.5 ensures reliable performance for revenue-grade metering
• CE marking confirms adherence to relevant electromagnetic compatibility and safety regulations

Current Sense Transformers Applications

• Commercial and industrial electricity consumption monitoring
• Integration with digital panel meters and data acquisition systems
• Energy management system (EMS) sensor deployment

Current Sense Transformers Procurement Notes

Verify that the conductor diameter matches the transformer's internal window size before purchase. Confirm that the connected burden does not exceed the 1 VA rating to maintain the specified 0.5 accuracy class. Ensure the operating frequency aligns with the system requirements, typically 50/60 Hz, to prevent phase shift errors during measurement.

Current Sense Transformers Selection Notes

Select this component when a non-invasive sensing solution is required for existing installations where cable disconnection is impractical. The 150 A primary rating suits medium-load distribution panels. The 0.5 class is appropriate for billing purposes, whereas lower classes may be used for process control. Consider the physical dimensions of the split core to ensure clearance within the switchgear enclosure.

Current Sense Transformers Part Context

This current transformer belongs to the Selec SCCT series, which specializes in split-core sensors for power quality and energy monitoring. These devices complement Selec's range of digital meters and transducers, forming a complete ecosystem for industrial energy management. The series emphasizes ease of retrofitting and high reliability in demanding electrical environments.

Current Sense Transformers Replacement Considerations

When substituting this unit, ensure the replacement maintains the 150:5 A ratio and 0.5 accuracy class. Verify that the new split-core window diameter accommodates the specific cable insulation thickness. Check that the burden capability meets or exceeds the original 1 VA specification to avoid saturation or accuracy degradation under load.