Description

The Schaffner FN3416-110-35 is a high-performance electromagnetic interference (EMI) suppression filter designed for effective noise filtering in industrial, commercial, and automation applications. Manufactured by Schaffner, a global leader in power quality and electromagnetic compatibility (EMC) solutions, this filter ensures reliable operation of sensitive electronic equipment by attenuating conducted electromagnetic disturbances on the power line. The FN3416-110-35 is specifically engineered for three-phase AC systems with neutral (3-phase + N), making it ideal for use in motor drives, servo controllers, CNC machines, HVAC systems, and renewable energy inverters.

As part of the renowned FN3416 series, the FN3416-110-35 combines compact design with robust filtering performance, offering excellent insertion loss across a wide frequency range (typically 10 kHz to 30 MHz). It helps meet international EMC standards such as EN 61800-3, EN 61000-6-4, and IEC/UL 60950-1, ensuring compliance in both industrial and residential environments. With a rated current of 35 A per phase and a voltage rating of 480 V AC, this filter supports high-power applications while maintaining low insertion loss and minimal temperature rise during continuous operation.

The FN3416-110-35 is built with high-quality internal components, including common-mode and differential-mode chokes and Class Y/X safety capacitors, all housed in a durable, flame-retardant case (UL 94 V-0). Its screw-terminal connection style ensures secure wiring and easy integration into control panels and switchgear cabinets. Designed for DIN rail or panel mounting, the FN3416-110-35 provides flexibility in installation while maintaining optimal EMI suppression performance in demanding electrical environments.

FN3416-110-35 SCHAFFNER

Technical Specifications

Main Features and Advantages

The Schaffner FN3416-110-35 offers several key advantages that make it a preferred choice for EMI filtering in industrial power systems. One of its primary strengths is its high current rating of 35 A, which allows it to be used in medium to high-power drive systems without requiring derating under normal operating conditions. Its optimized insertion loss profile ensures effective suppression of both common-mode and differential-mode noise, protecting not only the connected equipment but also preventing interference from propagating back into the mains supply.

A major benefit of the FN3416-110-35 is its robust construction and safety certification. All internal capacitors meet Class X1/Y2 safety standards, ensuring reliable operation under transient overvoltages and high-energy surges. The reinforced insulation and high dielectric strength provide excellent protection against electrical breakdown, enhancing personnel and equipment safety. Additionally, the filter is designed to maintain low leakage current, which is critical in systems with sensitive residual current devices (RCDs) or ground fault protection.

Its compact and modular design allows for space-efficient installation on standard 35 mm DIN rails, simplifying panel layout and reducing wiring complexity. The screw-terminal interface supports large wire gauges (up to 6 AWG), ensuring low contact resistance and stable connections under high-load conditions. Furthermore, the FN3416-110-35 is thermally stable and resistant to thermal cycling, making it suitable for harsh industrial environments with fluctuating temperatures and high humidity.

By minimizing electromagnetic emissions and improving system immunity, the Schaffner FN3416-110-35 contributes to higher system reliability, reduced downtime, and compliance with global EMC regulations—making it an essential component in modern power electronics installations.

Application Field

The Schaffner FN3416-110-35 is widely used across various industries where clean power and electromagnetic compatibility are critical. In industrial automation, it is commonly installed at the input stage of variable frequency drives (VFDs), servo amplifiers, and programmable logic controllers (PLCs) to suppress noise generated by fast-switching semiconductors (e.g., IGBTs).

In renewable energy systems, the filter is employed in solar inverters and wind turbine converters operating at 480 V AC to ensure grid compliance and prevent interference with monitoring and communication systems. It is also utilized in HVAC&R (Heating, Ventilation, Air Conditioning & Refrigeration) units equipped with large compressors and variable-speed fans, where electrical noise can disrupt building management systems.

Other key applications include machine tools (CNC lathes, milling machines), conveyor systems, pumping stations, and test benches where precision control and signal integrity are required. The FN3416-110-35 is particularly valuable in environments with multiple interconnected electronic devices, such as manufacturing plants and data centers, where conducted emissions can lead to malfunctions or data corruption.

Due to its high voltage and current ratings, this filter is well-suited for North American and international 480 V industrial power systems, including those in the United States, Canada, and parts of Asia and South America.

Related Products

Schaffner FN3416-110-20: Lower current variant (20 A) in the same series, suitable for smaller 3-phase systems.
Schaffner FN3416-110-50: Higher current version (50 A) for heavy-duty applications with larger drives.
Schaffner FN3616-110-35: Enhanced EMI filter with improved insertion loss and lower leakage current for sensitive environments.
Schaffner FN2060-11-35: Single-stage 3-phase filter with similar current rating but more compact size for space-constrained panels.
Schaffner AMCD Series: Active harmonic and EMI filters for advanced power quality correction.
Schaffner HF9124: DC link choke designed to be used in conjunction with the FN3416-110-35 for improved drive performance.
Schaffner NA3024: RFI noise absorber for secondary filtering on motor cables or signal lines.
Schaffner FN2100-11-35: Cost-effective alternative for general-purpose 3-phase filtering with basic EMC compliance.

FN3416-110-35 SCHAFFNER

Installation and Maintenance

Pre-installation preparation: Before installing the Schaffner FN3416-110-35, ensure that the main power supply is disconnected and locked out (LOTO procedure). Verify that the system voltage (up to 480 V AC) and load current (≤35 A) are within the filter’s specifications. Confirm that the panel has adequate ventilation and is free from dust, moisture, and conductive contaminants. Use only copper conductors sized appropriately for 35 A (typically 6–8 AWG), and torque terminals to the manufacturer’s recommended value (usually 2.5–3.0 Nm).

Installation guidelines: Mount the filter on a standard 35 mm DIN rail or secure it via panel mounting brackets. Connect the LINE terminals (L1, L2, L3, N) to the power source and the LOAD terminals to the input of the drive or equipment. Ensure proper grounding by connecting the chassis earth terminal to the system ground with a low-impedance path using a minimum 6 AWG grounding wire. Keep input and output wiring separated to prevent noise coupling, and avoid routing signal cables parallel to power lines.

Maintenance recommendations: The FN3416-110-35 is maintenance-free under normal conditions but should be inspected periodically during routine panel maintenance. Check for loose connections, signs of overheating (discoloration, melting), or damaged insulation. Clean dust buildup with dry compressed air—do not use solvents. Monitor leakage current if connected to RCDs; excessive leakage may indicate capacitor aging. Replace the filter immediately if physical damage or performance degradation is observed.