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Product Detailed Parameters
- Description：LINE FILTER 75A CHASSIS MOUNT
- Series：FN 3258
- Mfr：Schaffner EMC Inc.
- Package：Tray
- Filter Type：Three Phase (Delta)
- Configuration：Single Stage
- Voltage - Rated DC：-
- Voltage - Rated AC：-
- Current：75 A
- Frequency - Operating：DC ~ 60Hz
- Applications：General Purpose
- Approval Agency：CSA, ENEC, UR
- Operating Temperature：-25°C ~ 100°C
- Mounting Type：Chassis Mount
- Termination Style：Terminal Block
- Inductance：-
- Voltage - Rated AC (Phase to Ground/Neutral)：277 V
- Voltage - Rated AC (Phase to Phase)：480 V
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Overview
The FN3258-75-52 is a three-phase EMC/EMI line filter designed for chassis mounting. It supports a nominal operating voltage of 400 VAC and a maximum continuous operating voltage of 3x480/277 VAC. The unit provides a rated current of 75 A. It features single-stage filtering with terminal block connections and operates at frequencies up to 60 Hz DC. This component is part of the ultra-compact FN 3258 series intended for motor drive applications.
Feature Summary
- Ultra-compact design optimized for space-constrained motor drive installations
- Three-phase EMC/RFI filtering capability for industrial power lines
- Chassis mount configuration with terminal block termination
Applications
- Motor drive systems requiring EMI suppression
- Industrial power distribution units
- Electrical cabinets with limited mounting space
Procurement Notes
Verify the specific datasheet version as some sources indicate this product may be obsolete or no longer manufactured by Schaffner. Confirm compatibility with your system's voltage and current requirements against the official specification sheet before procurement. Ensure the terminal block interface matches your wiring infrastructure.
Selection Notes
Select this model when a 75 A three-phase filter is required for motor drives. Compare against the FN3258H series if higher voltage ratings (up to 520 VAC) are necessary. Ensure the chassis mount form factor fits the enclosure constraints. Verify RoHS compliance status through the manufacturer's current documentation.
Part Context
This component belongs to the Schaffner FN 3258 series, which specializes in ultra-compact electromagnetic interference filters. The series is engineered specifically for motor drive applications where space efficiency and high current handling are critical. The FN3258-75-52 variant represents the 75 A capacity within this lineup.
Replacement Considerations
Check for availability of the FN3258H-55-52 if higher voltage tolerance is needed, though current ratings differ. Since some sources list this item as obsolete, consult Schaffner directly for current lifecycle status and approved alternative part numbers.
