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Altran Magnetics EMI Filter Manufacturing Line

EMI Filters

High Performance Noise Mitigation

Precision Electromagnetic Interference Filters for Global OEMs

Altran Magnetics engineers high-performance Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI) filters optimized to mitigate high-frequency conducted electrical noise in demanding industrial, medical, renewable, and transportation equipment.

Our comprehensive EMI filter portfolio includes single-phase line filters, heavy-duty three-phase noise filters, IEC power entry modules, low-leakage medical grade solutions, compact PCB-mount filters, and high-voltage DC filters for EV fast-charging stations and energy storage systems (BESS).

Every Altran EMI filter platform is designed for rapid EMC compliance testing, ensuring system integrators clear international emission thresholds under FCC Part 15, CISPR 11/32, and IEC 61000-6 series regulations on the first submission.

Single Phase and Three Phase EMI Filter Product Line
Product Classification

Comprehensive EMI/RFI Filter Solutions

Select from standardized off-the-shelf catalog series or request tailored electrical modifications for unique line impedances and physical footprint requirements.

120/250 VAC | 1A - 20A

IEC Inlet / Power Entry Modules

Integrated C14/C18 power entry modules combining IEC connectors, line filtering, optional rocker switches, and fuse holders in a single compact housing.

  • • Fast-on terminal or PCB pin options
  • • Medical low-leakage current variants
  • • Standard & medical dual-fuse configurations
250 VAC | 1A - 100A

Single-Phase Line Filters

General-purpose and high-attenuation single-phase AC filters designed to suppress common-mode and differential-mode noise in power supplies and automation panels.

  • • Exceptional low-frequency noise attenuation
  • • Screw terminal, wire lead, or stud connections
  • • Compact chassis-mount metallic enclosures
520/690 VAC | 7A - 2500A

Three-Phase Industrial Filters

Heavy-duty 3-phase and 3-phase + neutral EMI filters tailored for variable frequency drives (VFDs), servo drives, solar inverters, and heavy machinery.

  • • Book-style & flat chassis-mount topologies
  • • Prevents motor insulation breakdown & bearing currents
  • • Ultra-high continuous current capabilities
250 VAC | 1A - 30A

PCB Mount EMI Filters

Direct PCB solderable noise filters for switch-mode power supplies (SMPS), telecom circuitry, and sensitive onboard electronic instrumentation.

  • • Extremely small PCB footprints
  • • Encapsulated resin construction against moisture
  • • Dual-stage electrical filter networks
1000/1500 VDC | 10A - 1000A

High Voltage DC Filters

Specialized DC bus line filters engineered for high-power DC fast-charging infrastructure, battery storage systems, and solar PV combiner boxes.

  • • Bi-directional noise suppression
  • • High voltage isolation withstand up to 3000 VDC
  • • Low power dissipation under full continuous load
100 dB @ 10 kHz - 10 GHz

Feed-Through Components & Facility Filters

High-capacitance feed-through filters and shielded facility filters protecting sensitive military, MRI room, and data center environments from RF interference.

  • • Hermetically sealed threaded bolt designs
  • • Ultra-wideband frequency attenuation
  • • Built to rigorous MIL-STD and defense specs
Technical Baseline

Standard Product Family Specifications

Compare operational ratings, leakage currents, and international safety compliance across our primary EMI filter configurations.

Filter Series Rated Voltage Current Range Leakage Current (Max) Operating Temp. Range Safety Certifications
IEC Inlet Series 120 / 250 VAC 1 A – 20 A < 0.5 mA (Medical < 5 µA) -25°C to +85°C UL 1283, CSA, CE, RoHS
Single-Phase General 125 / 250 VAC 1 A – 100 A < 0.8 mA -40°C to +85°C UL, cUL, CE, REACH
Single-Phase High Performance 250 VAC 3 A – 60 A < 1.5 mA -40°C to +100°C UL 1283, CE, EN 60939
Three-Phase Industrial Drive 480 / 520 VAC 7 A – 800 A < 5.0 mA -25°C to +100°C UL, cUL, CE, EN 60939-2
High Voltage DC Bus 1,000 / 1,500 VDC 25 A – 1,000 A < 1.0 mA -40°C to +105°C UL 1283, CE Compliant
Medical Low-Leakage 115 / 250 VAC 1 A – 30 A < 2 µA – 5 µA -25°C to +85°C IEC 60601-1, UL, CE
Verified Reliability

Strict Quality Assurance & Compliance Engineering

At Altran Magnetics, we recognise that system EMC non-compliance can stall product launches and create costly field failures. Every batch of EMI filters undergoes automated functional verification, dielectric withstand voltage testing (Hi-Pot), insertion loss mapping, and thermal dissipation validation prior to global dispatch.

UL / cUL Listed Compliant with UL 1283 standards for power-track filter units.
CE & ENEC Marked Validated against European directive IEC/EN 60939 filter criteria.
RoHS & REACH 100% compliant materials, completely free from hazardous substances.
CISPR / FCC Tested Attenuates conducted emissions to clear Class A & Class B limits.
Engineering OEM Support

Custom EMI Filter Engineering & Competitor Cross-Referencing

Facing long lead times, obsolete component notifications, or unique space constraints? Altran Magnetics specializes in rapid custom modifications and direct cross-reference solutions for existing OEM bills of materials (BOM).

Our engineering department reviews your electrical schematic, target attenuation curve, mechanical mounting geometry, and terminal wiring needs. We issue fully documented custom part numbers complete with 3D CAD step files, insertion loss test data, and agency approval documentation within tight program deadlines.

  • • Custom mechanical enclosures & mounting brackets
  • • Tailored inductance & capacitance values for targeted frequencies
  • • Specialized harness integration, cabling, and connector assemblies
  • • Direct drop-in cross-references for major legacy EMI filter brands
Engineering Team Validating EMI Filter Insertion Loss
Buyer Knowledge Base

Frequently Asked Questions

Answers to key engineering and procurement queries regarding EMI filter selection, safety compliance, and international shipping.

Our EMI filter series are designed and tested to meet major global EMC standards including CISPR 11/32, FCC Part 15 Subpart B, IEC/EN 61000-6-3/4, and safety guidelines under UL 1283, CSA C22.2 No. 8, and IEC/EN 60939.

Yes, we provide medical-grade single-phase and IEC inlet EMI filters engineered with minimal Y-capacitor configurations to ensure compliance with strict medical leakage current limits set by IEC/EN 60601-1 for patient-contact equipment.

Our engineering department provides comprehensive cross-reference evaluation sheets matching mechanical dimensions, termination types, electrical schematics, insertion loss curves, and safety agency approvals to replace legacy parts seamlessly.

You can request engineering samples, standard datasheets, 3D CAD models, and RoHS/REACH compliance paperwork by contacting our application support team directly via our live technical catalog assistance button below.

Request Complete Technical EMI Filter Catalog & CAD Models

Gain access to full insertion loss spectrum graphs, detailed mechanical engineering drawings, electrical schematics, and cross-reference datasheets for your design team.

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