SPCT 50/30 75/5 A VA 1 CL 1-CU-ROHS

Overview

The SPCT 50/30 75/5 A VA 1 CL 1-CU-ROHS is a current sense transformer manufactured by Selec Controls USA Inc. It features a primary rating of 75A and a secondary output of 5A, with a burden capacity of 1 VA and Class 1 accuracy. The device operates within a frequency range of 50Hz to 60Hz and supports a maximum operating voltage (Um) of 720V. It provides 3kV AC insulation for one minute and is certified to ASTA, UL, CE, and RoHS standards.

Feature Summary

• Provides accurate current sensing with Class 1 precision for measurement applications
• Features robust 3kV AC dielectric strength ensuring electrical isolation safety
• Complies with international safety and environmental certifications including UL, CE, and RoHS

Applications

• Industrial power monitoring systems requiring precise current data
• Electrical protection relays needing reliable input signals
• Energy management meters utilizing standard 5A secondary outputs

Procurement Notes

Verify the specific part number suffix against official Selec documentation to confirm compliance with required regional certifications such as UL or CE. Ensure the application environment matches the 50Hz-60Hz operational frequency range. Confirm that the system burden does not exceed the 1 VA rating to maintain Class 1 accuracy. Check for RoHS3 compliance status if environmental regulations are strict.

Selection Notes

Select this model when a 75:5 transformation ratio is required for low-voltage distribution networks up to 720V. Consider the DIN rail mounting style for space-constrained panels. Evaluate the 1 VA burden limit against connected metering devices to prevent saturation. Verify that Class 1 accuracy meets the specific measurement tolerance requirements of the end application.

Part Context

This component belongs to the SPCT series of special type current transformers from Selec Controls. These units are designed for industrial environments where reliable current measurement is critical. The series includes various primary ratings and burden options to suit different network configurations while maintaining standardized secondary outputs for compatibility with common instrumentation.

Replacement Considerations

Direct substitutes must match the 75:5 ratio, 1 VA burden, and Class 1 accuracy. Verify physical dimensions for DIN rail compatibility. Ensure equivalent insulation levels and certification marks are present in alternative models.