FN3359-320-99

Overview

The FN3359-320-99 is a three-phase EMC/RFI power line filter manufactured by TE Connectivity / Schaffner. It features a chassis mount design with busbar termination and operates within a frequency range of 0 Hz to 60 Hz. The unit has a voltage rating of 520 VAC and a current rating of 320 A. Physical dimensions are 386 mm in length, 260 mm in width, and 115 mm in height, with an operating temperature range from -25°C to +100°C. Leakage current is specified at 5.1 mA. The component holds UL, CSA, and IEC/EN certifications.

Feature Summary

• Provides high-current filtering for three-phase power systems
• Designed for chassis mounting using busbar connections
• Supports Class A compliance with potential Class B approval measurement

Applications

• Industrial power distribution systems requiring high current handling
• Electrical equipment needing three-phase EMI suppression
• Heavy machinery power input stages

Procurement Notes

Verify the specific current rating requirement against the datasheet before ordering, as the series includes variants up to 2500 A. Confirm that the busbar termination style matches the installation interface. Check shipping restrictions related to the unit's weight and dimensions, which may limit transport options or require specific currency arrangements depending on the destination country.

Selection Notes

Select this model when a three-phase filter rated for 320 A at 520 VAC is required. Ensure the application environment stays within the -25°C to +100°C operating temperature range. Verify that the chassis mounting footprint and busbar connection points align with the mechanical design constraints of the target enclosure.

Part Context

This component belongs to the FN3359 series of high-power filters from Schaffner. The series covers a wide range of current ratings, including 400 A, 600 A, and 2500 A variants. All models in this family share similar physical construction methods, utilizing chassis mounting and busbar terminations for high-current applications.

Replacement Considerations

Direct substitutes within the same series include FN3359-400-99 (400 A) and FN3359-600-99 (600 A). These alternatives offer higher current capacities but may require verification of mechanical fit and thermal management compatibility.