Tekbox TBL5063-3 Three-Phase LISN

• Three-phase Line Impedance Stabilization Network (LISN)
• Frequency range: 9 kHz–30 MHz
• Compliant with CISPR 16-1-2
• 50 Ω ∥ (50 µH + 5 Ω) network impedance
• 63 A current rating per phase and neutral
• Maximum supply voltage: 690/400 V AC
• Separate RF outputs for each phase and neutral conductor
• Switchable protective earth (PE)
• Air-core inductors
• External 9 kHz high-pass filter included
• CEE/IEC60309 63 A connectors

Applications

• EMC pre-compliance testing
• Conducted emission measurements
• EMC testing of three-phase equipment
• Industrial drives and power converters
• EV charging infrastructure and energy systems
• EMC laboratories and development environments
  
  

The Tekbox TBL5063-3 is a three-phase Line Impedance Stabilization Network (LISN) designed for conducted EMC emission measurements in accordance with CISPR 16-1-2 over the frequency range from 9 kHz to 30 MHz. It provides a defined mains impedance between the power supply and the equipment under test, enabling repeatable and standardized conducted emission measurements.

The unit is designed for three-phase equipment operating at supply voltages up to 690/400 V AC with current ratings up to 63 A per phase and neutral conductor. Separate RF outputs for each phase and neutral enable individual analysis of conducted disturbances and support advanced EMC troubleshooting.

When used together with the Tekbox TBLM2 LISN Mate, the measured emissions can be separated into common-mode and differential-mode components, simplifying the identification of noise sources and the evaluation of EMC filters and suppression techniques.

The TBL5063-3 incorporates air-core inductors for stable high-frequency performance, a switchable protective earth connection and an artificial hand network compliant with applicable standards. An external 9 kHz high-pass filter is included, and the unit features CEE/IEC60309 63 A connectors for use in laboratory and EMC pre-compliance test environments.