FI-52 NCF IEC Connector Delivers High-End Performance with NCF Technology
FI-52 NCF IEC Connector is a high-performance 20A-rated C19 power connector engineered for ultra-low interference, mechanical stability, and vibration control in premium audio systems.
The Furutech FI-52 NCF (R) redefines power connectivity with a meticulously engineered blend of proprietary damping materials, innovative grounding systems, and premium conductor technology. Designed for audiophiles and high-fidelity professionals who demand absolute purity from their AC mains, this 20A IEC connector embodies Furutech’s uncompromising Pure Transmission ethos.
Constructed around the patented Nano Crystal² Formula (NCF), the FI-52 NCF uses a mix of nano-ceramic particles, carbon powder, and crystalline compounds that eliminate static, suppress resonance, and convert thermal energy into far-infrared radiation. This exclusive compound is embedded directly within the connector body to provide a unique combination of electrical, thermal, and mechanical damping not found in conventional IEC connectors.
NCF Material Enhances Electrical Damping and Vibration Control
NCF (Nano Crystal² Formula) is a proprietary composite that actively suppresses interference while stabilising thermal and mechanical energy within the FI-52 NCF.
Unlike traditional power connectors that merely house conductors, the Furutech FI-52 NCF Piezo Ceramic IEC is an active component in the signal chain. NCF introduces two advanced functions: negative ion emission to eliminate static and energy conversion that turns excess heat into far-infrared radiation. This intelligent material is also piezoelectric, enabling it to convert mechanical vibration into electrical damping, which is subsequently neutralised—minimising distortion at the conductor level.
This is paired with an outer shell crafted from silver-plated carbon fibre layered over nonmagnetic stainless steel. Internally, a specially selected acetal copolymer dampens resonance while insulating critical contact areas. This multi-layer construction was selected after extensive listening tests by Japanese high-end audio engineers and is designed to preserve harmonic structure, frequency extension, and tonal accuracy under real-world electrical loads.
Floating Magnetic Field Mitigation Improves Signal Purity
The FI-52 NCF connector uses the Earth/Ground Jumper System to eliminate electromagnetic interference caused by stray magnetic fields.
Through empirical testing, Furutech engineers identified interference caused by magnetic induction in metal fastening components inside traditional IEC plugs. To counteract this, the FI-52 NCF introduces the Earth/Ground Jumper System, a patented method that grounds all internal screws and metal junctions using a dedicated terminal that disperses stray current.
This innovation removes micro-arcing, eddy current generation, and secondary field interference caused by non-insulated mechanical parts. The result is a quieter electromagnetic environment around the connector, directly benefitting current flow and dynamic performance in power-hungry audio setups.
By reducing magnetic field turbulence within the housing, the FI-52 NCF provides a measurable improvement in electrical coherence, especially under high transient loads typical in Class A or Class D amplifiers and studio monitoring systems.
Rhodium-Plated Pure Copper Conductor Ensures Maximum Conductivity
A precision-machined Alpha pure-copper conductor plated in rhodium delivers robust conductivity with enhanced durability and oxidation resistance.
At the heart of the Furutech FI-52 NCF Ultimate Connector lies its signal path—an α (Alpha) pure copper contact treated with cryogenic and demagnetising processes, then plated in rhodium. Rhodium plating is not only mechanically resilient but also provides a tight, corrosion-resistant connection that ensures minimal signal degradation over time.
The conductor's geometry and clamping design provide full-surface contact with both live and neutral pins, maintaining low contact resistance even after multiple insertions. An upgraded metal cable clamp within the chassis ensures a tight, vibration-resistant grip on cables ranging from 6mm to 20mm in diameter.
FI-52 NCF Construction Balances Rigidity and Resonance Control
The FI-52 NCF housing integrates carbon fibre, stainless steel, and ceramic composite elements to achieve optimal resonance damping without compromising structural integrity.
This C19 IEC connector is engineered with a body composed of nylon and glass-fibre, internally infused with nano-ceramic and carbon-based damping agents to further suppress resonant peaks and electrical noise. The outer housing’s hybrid metal-carbon shell acts as both a mechanical shield and a frequency filter—neutralising microphonic effects and improving current linearity.
Physically, the FI-52 NCF maintains a robust footprint (77.2mm overall length) with a 39.0mm diameter shell, offering substantial internal volume for cable alignment and secure fitment. Despite its heavy-duty construction, its design remains space-efficient for high-end rack systems or equipment backplates where clearance is limited.
Furutech FI-52 NCF Is Built for Reference-Grade Power Applications
FI-52 NCF is specified for 20A/125V and 16A/250V AC applications, ideal for high-current audio equipment and ultra-low noise power distribution systems.
Whether used in audiophile-grade power conditioners, Class A monoblocks, or digital processing units sensitive to power integrity, the Furutech FI-52 NCF IEC connector offers a no-compromise solution to AC signal purity. Its proprietary damping materials, patented EMI suppression system, and high-conductivity contacts ensure clean, interference-free energy transfer essential to reference-level playback.
Hand-assembled with precision and finished to the highest standards, this NCF series connector supports Furutech’s Pure Transmission mission, delivering measurable performance gains for those seeking to maximise their system’s sonic potential.
