Single-Phase Sine Wave Filter Inductors

Uncontrolled harmonics damage sensitive electronics, raise energy losses, and heat up cables. Our Single-Phase Sine Wave Filter Inductors clean output waveforms before they reach critical loads. 

Inductance (L)

1.0 – 50.0 mH (Customizable range for precise harmonic filtering)

Current Rating (Irms)

5 – 100 A (Continuous RMS current, with derating curves available)

Current Rating (Isat)

7 – 150 A (Saturation current tested at 10% inductance drop)

Voltage Rating

250VAC / 500VDC (Reinforced isolation for safety-critical apps)

Frequency Range

50 – 5000 Hz (Optimized for industrial motor drives & inverters)

Product Description

With inductance ranges from 1.0 to 50.0 mH and saturation thresholds up to 150 A, these inductors reduce distortion at full load. We use nanocrystalline and ferrite cores to keep losses low while handling high frequencies. 

Harmonic Filtering

Up to 50th order (IEEE 519 compliant for grid-tied systems)

THD (Total Harmonic Distortion)

<3% at full load (Ensures pure sine wave output)

DC Resistance (DCR)

0.01 – 0.5 Ω (Low-loss design for high-efficiency systems)

Core Material

Nanocrystalline / Ferrite (Low core loss, high stability under load)

Tolerance (%)

±5% standard (±10% or tighter on request)

Temperature Range

-40°C to +155°C (Wide operating range for harsh conditions)

Mounting Style

Chassis Mount (Standard) / PCB Mount (Optional)

Termination Type

Screw Terminals (Copper alloy) / Wire Leads (Tinned copper)

Insulation Class

Class H (180°C) (UL-certified for high-temperature environments)

Certification Standards

UL 1446, IEC 61558, RoHS, REACH (Compliant for global markets)

Technical Advantages

We build each inductor using high-grade nanocrystalline or ferrite cores for stable performance at full saturation. All models support continuous current ratings up to 100 A with DCR as low as 0.01 Ω. 

Each unit filters harmonics up to the 50th order and keeps THD below 3% at full rated load. With reinforced insulation up to 500VDC and thermal endurance up to 180°C, the product suits mission-critical sites across industries. 

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Industry Applications

Industrial Motor Drives

Reduces reflected harmonics from VFDs to extend motor insulation life. 

Battery Energy Storage Systems

Filters high-frequency switching noise before grid export or islanding. 

Medical Equipment Power Supply

Protects imaging and scanning equipment from voltage ripple and waveform irregularities. 

Telecom Power Systems

Smooths DC bus ripple and ensures clean AC waveforms for rectifier-fed systems. 

Automation Panels

Shields PLCs and servo drives from transient spikes and harmonic interference. 

Solar Inverter Installations

Filters inverter output to meet THD norms before feeding AC loads. 

Single-Phase Sine Wave Filter Inductor

Configurations for Tight Panels and High-Heat Zones

Not all setups leave room for bulky filters or excess thermal margin. Our Single-Phase Sine Wave Filter Inductors come in chassis and PCB mount styles for easy fitment across compact panels. 

We offer both screw terminals and wire-lead terminations to match OEM build preferences. Class H insulation, RoHS and UL 1446 compliance ensure each unit runs cool and safe in elevated ambient conditions. 

Having Doubts? Our FAQ

Check all our Frequently Asked Question

How does Frigate ensure low total harmonic distortion (THD) in its Single-Phase Sine Wave Filter Inductors?

Frigate designs each inductor to maintain THD below 3% at full rated load. This is achieved by tuning the inductance and core saturation characteristics to suppress high-order harmonics effectively. The use of nanocrystalline and ferrite materials further ensures linear magnetic behavior across frequency ranges. Every design is validated under simulated inverter output conditions to confirm waveform purity. 

What makes Frigate’s inductors suitable for high-frequency industrial motor drives?

Frigate selects core materials with low core losses and high-frequency stability to match inverter switching operations between 50 Hz and 5000 Hz. This minimizes waveform distortion while maintaining consistent impedance across the range. The units are thermally modeled for prolonged use at elevated temperatures. Their compact form factor also fits tight control panel layouts without derating. 

How are Frigate’s filter inductors protected against core saturation during peak current surges?

Frigate uses cores with tested saturation thresholds up to 150 A, with inductance values measured at 10% drop points. This helps maintain waveform filtering during short-term overloads. A carefully designed air gap and symmetrical winding pattern keep magnetic flux stable. Each model undergoes surge simulation to ensure real-world endurance under non-ideal grid or load conditions. 

Can these inductors be installed in enclosed control panels with limited airflow?

Yes, Frigate offers Class H insulated inductors with low DCR values to reduce self-heating. Chassis-mount or PCB-mount configurations allow placement flexibility in dense assemblies. The wire fill and thermal paths are optimized to avoid hotspots even in ambient conditions up to 155°C. Internal testing includes thermal cycling to validate operation in low-airflow enclosures. 

What standards and certifications do Frigate’s Single-Phase Sine Wave Filter Inductors comply with?

Frigate builds each unit to meet global compliance standards such as UL 1446, IEC 61558, RoHS, and REACH. These certifications cover insulation safety, environmental compatibility, and operational integrity. Every production batch is tested for insulation resistance and thermal class validation. Our components support both industrial and commercial system integrations without extra conformity adjustments. 

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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

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Single-Phase Sine Wave Filter Inductors

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Single-Phase Sine Wave Filter Inductors

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