37020

Overview

The Simpson Electric 37020 is a solid core current transformer designed to step down high AC primary currents to a standardized 5 A secondary output. It features a 100:5 ratio and a 2 VA power rating, enabling safe measurement of elevated currents. The unit utilizes stud terminals for secure electrical connections and includes a footed design for stable mounting. With an inner diameter of 1.56 inches, it accommodates conductors up to that size.

Feature Summary

• Reduces high AC current signals to a standard 5 A AC output
• Utilizes stud terminals for direct and secure wiring connections
• Features a solid core construction with a footed base for panel mounting

Applications

• Integration with digital AC ammeters for current monitoring
• Installation in analog panel meter circuits requiring scaled input
• Mounting on electrical fixtures or control panels for industrial measurement

Procurement Notes

Verify the specific current ratio requirement against the application load, as this model provides a fixed 100:5 transformation. Confirm that the conductor size fits within the 1.56-inch inner diameter aperture. Ensure the connected metering device accepts a 5 A secondary input and does not exceed the 2 VA burden rating to maintain accuracy.

Selection Notes

Select this component when a fixed 100:5 reduction is required for AC current monitoring. It is suitable for applications needing a robust, footed transformer with stud terminals rather than plug-in types. Consider the physical dimensions and terminal type compatibility with the target panel or fixture during the selection process.

Part Context

This part belongs to the Simpson Electric series of analog panel meters and associated accessories. It serves as a critical interface component, allowing standard low-current meters to measure significantly higher primary line currents safely and accurately within electrical distribution systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility by matching the 100:5 ratio, 5 A secondary output, 2 VA rating, and 1.56-inch ID specifications if sourcing alternatives.