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SC9000 EP arc-resistant medium-voltage variable frequency drive

The SC9000 EP arc-resistant variable frequency drive (VFD) is designed to safely contain, cool and redirect exhaust gases in the event of an arc flash incident.  Built in an arc-resistant Type 2B enclosure for the strength needed to resist the forces of arc blasts up to 50kA, the fully integrated arc-resistant drive provides enhanced safety from the front, sides and rear of the enclosure, even with the control doors open.

Arc resistant drive
Voltage Class
5 kV
up to 6000 Hp
Main Bus Rating
up to 3000 A

Core features

  • Certified to UL® 347A
  • Available for 2400V to 4160V medium-voltage motors, up to 6000 horsepower
  • Arc-resistant Type 2B up to 50kA 
  • Certified to CSA C22.2 No. 22-11 and witness-tested to IEEE C37.20.7-2007 at a third party high power laboratory
  • Utilizes an inverter topology with a three-level neutral point clamp (NPC) for a low part count and high reliability

Certified to enhance safety

Through extensive arc fault testing on all sections of the drive at a certified third-party power laboratory, Eaton's SC9000 EP arc-resistant medium-voltage drive is certified to CSA® C22.2 No. 22-11 and witness-tested to IEEE® C37.20.7-2007.


Enclosure technologies provide strength and direct fault byproducts to the proper exhaust locations in the event of an arc flash


Arc exhaust cooling technology significantly reduces temperature of exhaust gas and patented short circuit protection limits available arc fault energy


Unique arc fault detection circuits significantly reduce the possibility of an arc fault upon powering up the drive coupled with patented inverter encapsulation to prevent propagation of a fault

Experience arc-resistant protection in virtual reality

Become immersed into a virtual electrical room to see an arc flash incident occur within a medium-voltage drive in comparison to the SC9000 EP arc-resistant medium-voltage VFD.

Integrated control gear streamlines multi-configuration lineups

Compact and economical solution combining Eaton’s Ampgard main breaker and motor starters with the SC9000 medium-voltage drive across a common bus in a single high quality, integrated assembly. Entire assembly is available as arc-resistant.