690V High-Voltage Filter ACF411B400-B3-HV

Product Description

Designed for 660VAC/1140VAC class frequency converters used in domestic and overseas mining applications, this product is applicable to underground explosion-proof electrical cabinets with high safety and reliability. The high-voltage explosion-proof three-phase filter restrains radio frequency interference generated by operating frequency converters from feeding back to the power grid. The high-voltage filter at the converter output suppresses RF interference caused by PWM waves at the output terminal.

It prevents interference to coal safety and intrinsically safe monitoring devices on the same or adjacent power grids, as well as various sensors for gas, wind speed, pressure and flow, video surveillance systems and PLC controls. This ensures normal operation of sensitive analog and digital signals including voltage, current and switching signals.

Basic Parameters

① Rated Voltage: 690VAC/1140VAC

② Operating Frequency: 50/60Hz

③ Climate Class: 25/85/21

④ Withstand Voltage: 3KV/4.5KVDC

⑤ Rated Current: 50A~1600A

Circuit Structure Drawing

Naming Convention

Insertion Loss Graph