ESM-03-221

Power Line Filter Modules Overview

The Cosel ESM-03-221 is a single-phase EMC/EMI power line filter designed for industrial applications. It features a rated voltage of 250 VAC and 250 VDC, with a current rating of 3 A. The unit utilizes a terminal block termination style and operates within a temperature range of -40°C to 85°C. Key electrical specifications include a leakage current of 25 uA and a capacitance of 220 pF. The component is certified under UL, CSA, DIN, and ENEC standards.

Power Line Filter Modules Feature Summary

• Provides common mode noise filtering for single-phase AC and DC circuits
• Features screwless terminal block connections for secure wiring
• Supports DIN rail mounting for standardized panel integration

Power Line Filter Modules Applications

• Industrial control panels requiring EMI suppression
• Power supply input stages for sensitive electronics
• Machine tool electrical systems

Power Line Filter Modules Procurement Notes

Verify the specific suffix designation when ordering, as variants such as ESM-03-221-D exist with different mounting or termination characteristics. Confirm that the required certification marks (UL, CSA, DIN, ENEC) align with regional regulatory requirements for the intended installation environment before finalizing procurement.

Power Line Filter Modules Selection Notes

Select this model for low-current single-phase applications requiring robust noise attenuation. Ensure the operating temperature range of -40°C to 85°C meets environmental conditions. Compare against the ESP series if chassis mounting is preferred over DIN rail installation, or consider the NAH series for higher current capacities exceeding 3 A.

Power Line Filter Modules Part Context

This component belongs to the ESM series of power line filters manufactured by Cosel USA, Inc. The series is engineered for compact EMI/EMC suppression in confined spaces. The ESM-03-221 specifically addresses low-amperage needs while maintaining compliance with international safety and electromagnetic compatibility standards.

Power Line Filter Modules Replacement Considerations

The ESM-03-221-D is a documented variant within the same family, potentially differing in mounting or termination details. Verify physical dimensions and connection types before substitution to ensure mechanical compatibility.