Trans-Coil International, KRF0090ATB, 90 Amp 480V Three-Phase EMC Power Line Filter, Terminal Block
Features:
- Reduces interference
- Protects sensitive equipment
- Eliminates drive cross-talk
- Meet FCC Regulation 15, Subpart
Typical Applications:
- Motor Drives
- Elevators
- Commercial Building
- Wind Farms
- Photovoltaics
- UPSPower Supplies
KRF filters use a combination of high-frequency inductors and capacitors to reduce noise in the critical 150 kHz to 30 MHz frequency range. The inductors act as open circuits and the capacitors act as short circuits at high frequencies while allowing the lower power line frequencies to pass untouched.
KRF filters assist with cost-effective compliance to EMC directives, in a compact, efficient, light-weight design. The high common mode and differential mode reduction in the critical 150 kHz to 30 MHz frequency range ensures that potential interference from AC drives is reduced or eliminated.
Equipment Interference and Failure The power line noise emissions associated with variable frequency drives can cause disturbances in nearby equipment. Typical disturbances include:
- Computer system failures
- Remote I/O glitches
- Encoder feedback errors
- Nuisance faults PLC
- Analog meter bouncing
- Thermostat control problems
- Dimmer and ballast instability
- Lighting disturbances such as flashing
- Poor radio reception
- Instability of control systems
- Flow metering fluctuation
For more information, please see 
Data Sheet and Drawing
