3-138-375

Overview

The SCHURTER Inc. model 3-138-375 is a three-phase (Wye) EMC/EMI line filter module designed for industrial power conditioning applications. It supports a rated current of 50 A and operates at voltages up to 760 VAC within a frequency range of 50 to 60 Hz. The unit features a two-stage filtering architecture and utilizes a chassis mount installation style with terminal block connections via threaded posts (M6). Key electrical specifications include a maximum leakage current of 9.42 mA, ensuring compliance with safety standards for sensitive electronic equipment.

Feature Summary

• Two-stage EMC/EMI filtering architecture for effective noise suppression
• Chassis mount design with M6 threaded post terminal blocks
• Rated for high voltage AC systems up to 760 VAC
• Low leakage current characteristics for personnel safety

Applications

• Industrial machinery power supply conditioning
• Three-phase motor drive input protection
• Medical equipment power isolation
• Data center and communication infrastructure filtering

Procurement Notes

Verify the specific voltage rating requirement against the 760 VAC specification before procurement. Confirm that the mounting hardware accommodates the M6 threaded post terminals. Ensure the application environment falls within the operational temperature limits defined in the official datasheet. Cross-reference the part number with the manufacturer's latest documentation to confirm current production status and any potential obsolescence notices.

Selection Notes

Select this component when a robust two-stage solution is required for three-phase Wye systems operating at high voltages. The chassis mount configuration suits panel-integrated designs rather than DIN rail setups. Evaluate the 50 A current capacity against peak load requirements. Consider the physical dimensions and thermal management needs associated with chassis-mounted filters in enclosed enclosures.

Part Context

This component belongs to the FMBD EP series of power line filters manufactured by SCHURTER Inc., a Swiss technology company specializing in circuit protection and electromagnetic compatibility solutions. The series is engineered for demanding industrial environments, providing reliable interference suppression for critical infrastructure. SCHURTER maintains strict quality standards across its product lines to ensure longevity and performance in harsh operating conditions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Users should consult the official SCHURTER replacement guide or contact technical support directly for validated cross-references. Do not assume generic compatibility based on similar ratings without verifying mechanical and electrical specifications.