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Variable frequency drives

ACE20 Explosionproof Variable Frequency Drives

The only explosionproof VFD solution utilizing NEMA 7 with active cooling.

ACE20 variable frequency drives are highly flexible AC drives designed specifically for hazardous locations.  Can be mounted next to the motor in the classified area, providing significant installation cost savings – along with the traditional VFD benefits of energy savings, speed and torque control, and system diagnostics.

ACE20 explosionproof VFDs utilize the Allen-Bradley PowerFlex 700 Series drive from 1 to 50 HP.

Certifications and compliances

UL classified

  • Class I, Divisions 1 & 2, Groups B, C, D

cUL classified

  • Class I, Divisions 1 & 2, Groups B*, C, D

UL standard

  • UL1203

Environmental ratings

  • NEMA 3, 4X†, 7BCD
  • Raintight
  • Wet locations

*5 HP and below listed for Group B.

†For NEMA 4X, please contact factory.

Design features

  • Fine speed and torque control
  • Soft start capability
  • Improved pressure, flow and motion control
  • Locate VFD in classified area, eliminating costly conduit/cable tray runs
  • Eliminate control valves
  • Reduced energy consumption
  • No additional space required in substation
  • Extract equipment condition and operating information
  • Lower pump maintenance costs
  • Recommended temperature range: 0°C to 50°C (consult factory for more extreme temperature guidance)

Standard materials

  • Body and cover – copper-free aluminum, epoxy powder coated
  • Operating handle – copper-free aluminum, epoxy painted
  • Window – tempered soda lime glass
  • Blower – aluminum, natural
  • Filters – stainless steel, natural
  • Pre-filters – stainless steel, natural
  • Disconnect – stainless steel, natural
  • Shroud – copper-free aluminum, epoxy painted
  • Cover hinges, bolts, washers and springs – stainless steel, natural
  • Internal brackets – stainless steel, natural
  • Manifold and intake – EPDM rubber, natural
Specifications
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