Series
R3F — Three-Phase Filter Reactors
Harmonic filter (detuning) reactors for PFC capacitor banks — P = 7% / 14%, 400 V
Three-phase harmonic filter reactors that detune power-factor-correction capacitor banks away from system harmonics, protecting the capacitors and limiting resonance. Available in two detuning factors — P = 7% (tuned to 189 Hz, linearity > 1.73 x I rms) and P = 14% (tuned to 134 Hz, linearity > 1.37 x I rms) — rated from 6.25 to 50 kVAR at 400 V 50 Hz. Screw terminals on the smaller ratings, busbar terminals on the larger ones.
Key Features
- ▸Detuning filter reactors for PFC capacitor banks
- ▸Two detuning factors: P = 7% (189 Hz) and P = 14% (134 Hz)
- ▸Linearity > 1.73 x I rms (P=7%) / > 1.37 x I rms (P=14%)
- ▸Screw terminals up to 12.5 kVAR, busbar from 20 kVAR
- ▸Copper / aluminium windings
Mounting
Floor / panel mount
METH Catalogue
Dimensions & data chart
Full dimensional drawing, code matrix, and electrical data (losses, efficiency, Ucc, inrush) for this series in the METH Transformer Catalogue — page 26.
View dimensional drawing & data chart (METH Catalogue p. 26) →Technical Data
Specifications
Inches shown as primary unit, mm as secondary where applicable. Custom voltages and ratings available — contact us for engineered configurations.
| Model | VA / kVA | Primary Voltage | Secondary Voltage | Certifications |
|---|---|---|---|---|
| R3F-7 - P = 7% / 189 Hz / 400 V / linearity > 1.73 x I rms | ||||
| R3F-7-400-6,25 | 6.25 kVAR | 400 V | 6.13 mH | CE · IEC 60076-6 |
| R3F-7-400-10 | 10 kVAR | 400 V | 3.84 mH | CE · IEC 60076-6 |
| R3F-7-400-12,5 | 12.5 kVAR | 400 V | 3.07 mH | CE · IEC 60076-6 |
| R3F-7-400-20 | 20 kVAR | 400 V | 1.92 mH | CE · IEC 60076-6 |
| R3F-7-400-25 | 25 kVAR | 400 V | 1.53 mH | CE · IEC 60076-6 |
| R3F-7-400-40 | 40 kVAR | 400 V | 0.96 mH | CE · IEC 60076-6 |
| R3F-7-400-50 | 50 kVAR | 400 V | 0.77 mH | CE · IEC 60076-6 |
| R3F-14 - P = 14% / 134 Hz / 400 V / linearity > 1.37 x I rms | ||||
| R3F-14-400-6,25 | 6.25 kVAR | 400 V | 13.27 mH | CE · IEC 60076-6 |
| R3F-14-400-10 | 10 kVAR | 400 V | 8.29 mH | CE · IEC 60076-6 |
| R3F-14-400-12,5 | 12.5 kVAR | 400 V | 6.63 mH | CE · IEC 60076-6 |
| R3F-14-400-20 | 20 kVAR | 400 V | 4.15 mH | CE · IEC 60076-6 |
| R3F-14-400-25 | 25 kVAR | 400 V | 3.32 mH | CE · IEC 60076-6 |
| R3F-14-400-40 | 40 kVAR | 400 V | 2.07 mH | CE · IEC 60076-6 |
| R3F-14-400-50 | 50 kVAR | 400 V | 1.66 mH | CE · IEC 60076-6 |
Available from our Italian warehouse. Lead times and pricing on request.
Use Cases
Typical Applications
Detuned PFC banks
Protect power-factor-correction capacitors in harmonic-rich networks.
Harmonic mitigation
Reduce resonance risk on networks with VFDs and non-linear loads.
Industrial switchboards
Capacitor-bank panels in plants and commercial buildings.
Utility reactive compensation
Medium and large reactive-compensation installations.
Get a Quote
Request a Quote — R3F
Contact us for pricing, lead times, and application engineering. Full certification documentation provided with every order.