DIN rail EMI filters target EMC in medical and test

New Products |
By Nick Flaherty

API’s 62-STB series of DIN rail mounted, single phase power EMI filters eliminate both differential mode and common mode electromagnetic interference (EMI) and meet stringent Electromagnetic Compatibility (EMC) compliance specifications. They are aimed at reducing unwanted interference for industrial applications and high power office/medical equipment and instruments, such as X-ray machines, bone mineral densitometry devices, electrical installation control panels, textile machinery and electrical boilers and HVAC equipment as well as refrigeration units and printers.

The enhanced intelligence and performance requirements of new electronics bring greater susceptibility to outside EMI and the demand for EMC compliance in industrial, office and medical environments is intensifying as highly EMI-sensitive digital, analogue and RF/microwave electronics are used in more areas. EMI power filters are a low-cost solution for designing in better EMC compliance or retrofitting existing equipment negatively impacted by EMI.

API’s DIN rail mounted EMI filters are easily integrated, installed and connected externally or internally to existing equipment, control panels and the power line. They also can be easily replaced, retrofit or serviced and mount to any DIN rail system. Several models include chassis mounting features for greater customization and utility.

API’s DIN rail mounted power filters feature 50/60 Hz rated voltage operation to 250 VAC; models in the series range from 6 A to 30 A maximum rated current. Though capable of substantial power handling, these EMI filters exhibit very low maximum leakage current, typically 0.5 mA at 250 VAC, with models available that reach a maximum of 0.1 mA. The EMI filters’ low maximum voltage drop is less than 1.0 V.

API’s DIN rail mounted noise filters demonstrate high insulated resistance of 300 MΩ at 500 VDC between the power line and ground. Moreover, these EMI filters are built to survive industrial temperatures, with an operating temperature range from -25°C to +85°C, including a maximum temperature rise of 45℃. They can be made with enhanced high pulse and high noise attenuation features to meet a wider range of operational requirements.


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