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Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Schaffner |
| Model Number | FN3416-110-35 |
| Product Type | 3-Phase Harmonic Filter |
| Rated Current | 110 A |
| Frequency | 50 Hz |
| Inductance | 35 mH |
| Topology | 3-Phase (3-wire) |
| THID Performance | >10% (with Ldc) |
| Compliance | EN 61000-3-12, IEEE-519 |
| Weight | Approx. 50 kg |
| Application | Non-linear 3-phase loads (B6 rectifier) |
Product Introduction
The Schaffner FN3416-110-35 is a heavy-duty 3-phase harmonic filter designed to reduce electromagnetic interference (EMI) and mitigate current harmonics in industrial power networks. As part of the ECOsine series, it is specifically engineered for use with non-linear three-phase devices, such as variable frequency drives (VFDs) and rectifiers, to ensure power quality and system stability.This unit is rated for 110 Amps at 50 Hz, making it suitable for high-power applications. By limiting Total Harmonic Current Distortion (THID) to levels compliant with standards like EN 61000-3-12 and IEEE-519, it prevents overheating and potential downtime in sensitive electronics. The filter helps reduce the burden on power infrastructure, allowing for better utilization of transformers and generators.
FN3416-110-35 SCHAFFNER
Installation & Configuration Guide
Preparation
- Verify the unit is the correct model (FN3416-110-35) for your load current.
- Ensure the mounting location can support the unit’s weight (50 kg).
- Safety: Disconnect all power sources and lock out/tag out the system. Discharge any capacitors in the drive system.
Removal
- If replacing an existing unit, disconnect the input and output power cables.
- Unscrew the mounting bolts securing the filter to the panel or floor.
- Carefully lift the unit out using appropriate hoisting equipment.
Installation
- Position the FN3416-110-35 in the designated location.
- Secure the unit with mounting bolts to prevent vibration.
- Connect the power cables to the Line (Input) and Load (Output) terminals. Ensure tight torque to prevent hot spots.
Power-On & Test
- Restore power to the system.
- Monitor the drive startup for any fault codes related to input power.
- Use a power quality analyzer to verify that harmonic distortion levels are within the expected range (<10-12% typically).
Troubleshooting Quick Reference
| Symptom | Probable Cause | Action |
|---|---|---|
| Overheating | Loose connections or overload | Check terminal torque; verify load current is <110A. |
| High Harmonics | Filter undersized or bypassed | Verify the filter is in series with the load; check for bypass switches. |
| Audible Noise | Mechanical resonance | Check mounting bolts; ensure the unit is not touching the cabinet walls. |
| Voltage Drop | High impedance | Verify cable sizing; this is normal for harmonic filters under load. |
Dimensions, Mounting & Wiring Notes
- Weight: 50 kg (Requires mechanical lifting aid or two people).
- Mounting: Bolt-down mounting is recommended due to the heavy weight.
- Wiring: Ensure proper phase rotation (L1, L2, L3) if specified on the label. Use copper conductors rated for the 110A load.
FN3416-110-35 SCHAFFNER
FAQ
What is the primary purpose of the FN3416-110-35?
It reduces harmonic distortion caused by non-linear loads (like motor drives) to protect the power grid and other connected equipment from interference and overheating.
Can I use this for a 60Hz system?
This specific model is rated for 50 Hz. Using it on a 60Hz system may affect its impedance and filtering performance. Consult the datasheet or manufacturer for 60Hz compatibility.
How heavy is this unit?
The unit weighs approximately 50 kg, so proper lifting equipment or assistance is required for installation.
Does this filter protect against voltage spikes?
While it primarily targets current harmonics and EMI, the inductance provides some buffering against minor voltage transients, but it is not a surge protector.
What standards does this filter meet?
It is designed to meet EN 61000-3-12 and IEEE-519 standards for harmonic current limitations.
