The Lambda/TDK TCR20T500 is a panel-mount EMI filter designed to suppress electromagnetic interference in DC power supply systems. It integrates internal RFI filtering with ferrite toroidal chokes and VDE-listed X and Y capacitors to achieve 1000× reduction in line-conducted RFI compared to previous SCR models. The unit operates across 47–63 Hz input frequency with 500 V AC maximum voltage and 20 A maximum current rating, delivering compliant EMC performance in compact, low-profile form factor.
Technical Specifications
• Input Voltage: 500 V AC maximum
• Maximum Current: 20 A
• Operating Frequency: 47–63 Hz (standard); extended range −25 to +85 Hz available
• Phases: 3-phase configuration
• Leakage Current: 5 mA
• Contact Resistance: 100 mΩ
• Operating Temperature: −25 to +85 °C
• RFI/EMI Reduction: 1000× attenuation vs. prior generation; VDE 875 Level N and VDE 871 Level A compliant
• AC Inrush Protection: Soft-start topology to suppress magnetic inrush current
– Key Features
• Panel-mount installation with screw termination
• Self-tightening screws and open/close cover for simplified field wiring
• Terminal block safety cover integrated
• Low-profile design: 140 mm L × 70 mm H × 50.4 mm D
• Ferrite toroidal choke filtering topology with X and Y capacitor configuration
• 5 mA leakage current specification for safety-critical applications
– Typical Applications
• Industrial DC power supply EMI suppression
• Three-phase AC/DC converter input filtering
• Electromagnetic compliance for 115 V and 208–220 V distributed power systems
• Factory automation and process control systems requiring VDE standards compliance
– Compatibility & Integration
The TCR20T500 integrates into power distribution architectures supporting 500 V AC input and 20 A continuous load draw. Screw terminal configuration accommodates standard industrial wiring gauges. Low-profile mounting footprint (50.4 mm depth) suits space-constrained cabinet and panel installations.
