3-138-346

Overview

The Schurter 3-138-346 is a three-phase (Delta) EMC/EMI power line filter module designed for chassis mounting. It features a two-stage filtering architecture with a rated current of 36 A and operates at frequencies of 50 Hz to 60 Hz. The unit utilizes terminal block connections with threaded posts (M6) for secure installation. Key electrical specifications include a maximum leakage current of 9.42 mA. The device is engineered for robust performance within an operating temperature range of -40°C to +100°C, ensuring reliable noise suppression in industrial power applications.

Feature Summary

• Two-stage EMC/EMI filtering architecture for enhanced noise attenuation
• Chassis mount design with M6 threaded post terminals for secure connection
• Rated for 36 A continuous current in three-phase Delta configurations
• Operates reliably across a wide temperature range from -40°C to +100°C

Applications

• Industrial machinery power supply protection
• Three-phase motor drive systems
• Factory automation control panels
• Heavy-duty equipment requiring EMI suppression

Procurement Notes

Verify the specific datasheet version for the 3-138-346 model to confirm mechanical dimensions and terminal torque specifications. Ensure compatibility with the target three-phase Delta system voltage and frequency requirements. Cross-reference the leakage current limits against sensitive load specifications. Confirm that the chassis mounting style aligns with the enclosure design constraints before finalizing procurement.

Selection Notes

Select this component when high-current three-phase filtering is required in space-constrained chassis environments. The 36 A rating suits moderate to heavy industrial loads. Consider the M6 terminal interface for standard wiring practices. Evaluate the thermal management needs given the +100°C maximum operating temperature. Compare against single-stage alternatives if lower attenuation is acceptable for cost reduction.

Part Context

This part belongs to Schurter's power line filter series, specifically designed for industrial EMC compliance. It complements other chassis-mounted filters in the product family, offering standardized mounting and terminal interfaces. The 3-138-346 variant is distinct by its 36 A current rating and two-stage topology, differentiating it from higher or lower capacity models in the same chassis-mount category.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify electrical equivalence, including current rating, voltage class, and physical mounting dimensions, before considering any alternative components from other manufacturers.