3-143-621

Overview

The Schurter 3-143-621 is a single-phase power line filter designed for chassis mounting. It features quick connect terminals and provides electromagnetic interference suppression with a rated current of 10 A at 250 V ac, 60 Hz. The unit incorporates X and Y capacitors to attenuate differential and common mode noise. It is constructed with a metal housing and includes integrated fuses for circuit protection. The filter supports panel thicknesses up to specified limits and operates within a temperature range of -25°C to +85°C.

Feature Summary

• Integrated X and Y capacitors for comprehensive EMI/RFI attenuation
• Built-in fuse elements for overcurrent protection
• Metal enclosure providing mechanical durability and shielding
• Quick connect terminal configuration for simplified wiring

Applications

• Industrial machinery power supplies
• Medical equipment input stages
• Office automation devices
• Telecommunications infrastructure

Procurement Notes

Verify the specific datasheet revision matches the required capacitance values and leakage current specifications for your application. Confirm that the quick connect terminal dimensions align with your harness connectors. Ensure the chassis mounting hole pattern corresponds to your enclosure design before finalizing procurement.

Selection Notes

Select this component when single-phase filtering is required for 10 A loads. Consider the physical dimensions and mounting style against available panel space. Evaluate the attenuation characteristics against local regulatory emission standards. Verify compatibility with the operating voltage and frequency of the target system.

Part Context

This part belongs to the FMAB NEO series of power line filters from Schurter. The series focuses on compact designs for general industrial applications. It complements other Schurter components like power entry modules and fuse holders in complete power input assemblies.

Replacement Considerations

Check for direct substitutes within the FMAB NEO series or comparable single-phase filters from other manufacturers. Ensure replacement units match the 10 A rating, 250 V ac specification, and terminal type. Verify dimensional compatibility for existing mounting holes.