CST-1020-B

Overview

The Triad Magnetics CST-1020-B is a current sense transformer designed for non-invasive current detection in power systems. It operates at frequencies of 50 Hz to 60 Hz and supports a primary current rating of 20 A. The device features a 1:1000 current ratio and a secondary DC resistance of 40 Ohms. Constructed with a solid core, it utilizes through-hole mounting for secure integration into circuit boards. This component provides reliable performance for monitoring AC line currents without breaking the conductor path.

Feature Summary

• Non-invasive solid core design enables direct conductor sensing without electrical isolation barriers
• High current ratio of 1:1000 ensures accurate signal translation from primary to secondary windings
• Through-hole termination style provides robust mechanical stability for industrial applications

Applications

• AC line current monitoring in power distribution units
• Overcurrent protection circuits in industrial machinery
• Energy metering systems requiring precise current measurement

Procurement Notes

Verify that the specific part number CST-1020-B matches the required current ratio and frequency range for your application. Confirm that the through-hole package dimensions align with your PCB layout constraints. Ensure the primary current rating of 20 A is sufficient for the expected load conditions to prevent saturation or thermal issues during operation.

Selection Notes

Select this component when non-invasive current sensing is required for 50/60 Hz AC lines. The 20 A primary rating suits moderate power applications. Consider the 40 Ohm secondary resistance for downstream circuit impedance matching. Verify that the operating temperature range meets environmental requirements. Compare against other Triad Magnetics current transformers if higher current ratings or different ratios are needed.

Part Context

The CST-1020 belongs to Triad Magnetics' series of current sense transformers. These devices are engineered for reliable current detection in power electronics. The model specifically targets applications requiring isolated measurement of AC currents. It complements other Triad products like the CMF series by providing sensing capabilities rather than filtering functions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Triad Magnetics technical support for equivalent models with similar current ratios and mounting styles.