Electromagnetic Integrated Solutions: +1(814) 474-1571

Industrial Applications

API Technologies will address virtually any requirement for a custom power filter products with current ratings as high as 500 amps. Our many years of experience in providing EMI/RFI solutions has allowed us to satisfy both global EMC regulations and time-to-market constraints. API Technologies' engineering expertise and vertical integration reduces your speed-to-market, as well as saves you money.

Features / Benefits

  • Optimized for the Welding Industry
  • Compact, Space-Saving Size
  • Suitable to meet EN 55011/14/22
  • Designed to meet CISPR11 and IEC 1000-4-x
  • Low leakage IEC inlet
  • Switched & fused product options
  • Ruggedized Construction for Harsh Environments


  • EMI filtering
  • Power distribution
  • Transient protection
  • Indicator lights
  • Circuit breaker protection
  • Leads or studs
  • Voltage cut-off
  • Agency approvals
  • Reverse polarity

Rotary Cutter, Failing Emissions Tests

Before: Rotary Cutter, Failing Emissions Tests

Rotary Cutter After Our Filter Inserted

After: Rotary Cutter After Our Filter Inserted

Performance Characteristics

Insertion loss range Effective filtering from 10 KHz to 10 MHz with proper installation
Current ratings (max.) up to 500 Amps
Voltage ratings (max.) 400VDC and 240VAC standard, custom ratings available
Leakage current ratings Varies, low leakage designs available
Temperature -40°C to +125°C