Universal Load Bank R500 Portable Load Bank

R500 Portable Load Bank

  • AC
  • Portable
  • Resistive
  • 500kW
  • 240 VAC / 480 VAC
  • 50 HZ / 60 HZ

The R500H portable load bank is the new standard for power system testing. Providing a full 500 kW at 240/480V, the R500H will also provide 375 kW at 208/415V. Designed for continuous indoor or outdoor operation the R500H is the ideal choice for load testing in rugged Service or Rental environments.

Reliable operation with proven digital HMI controls makes the R500H the perfect solution for comprehensive load testing in Mission Critical and other power source applications.

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  • Technical Details
  • Physical Specifications & Inbuilt Safety
  • Features & Benefits
  • Options
  • Applications
  • Downloads

Technical Details

Load Bank

R500H Series, Self-Contained, Indoor/Outdoor Portable Load Bank

Load Bank Type

AC Resistive

Load Rating

Rating: 500kW, Voltage: 480 VAC, Phase: 3 phase, Frequency: 60 Hz, Load Step Resolution: 5kW

Rating: 500kW, Voltage: 240 VAC, Phase: 3 phase, Frequency: 60 Hz, Load Step Resolution: 5kW

Rating: 375kW, Voltage: 208 VAC, Phase: 3 phase, Frequency: 60 Hz, Load Step Resolution: 3.75kW

Rating: 345kW, Voltage: 400 VAC, Phase: 3 phase, Frequency: 50 Hz, Load Step Resolution: 3.5kW

Rating: 335 kW, Voltage: 240 VAC, Phase: 1 phase, Frequency: 60 Hz, Load Step Resolution: 3.3kW

Power Factor


Install Type

Portable, Indoor Use, Outdoor Use

Duty Cycle

Continuous Duty

Cooling System

Air Cooled, Horizontal Airflow

Physical Specifications & Inbuilt Safety


Steel Powder Coated

Environmental Rating

NEMA Type 3R

Approx. Dimensions

33.2 W x 62.7 D x 55.5 H (inches)
84.5 W x 159.4 D x 140 H (cm)

Approx. Weight

1320 Lbs / 600 Kgs

Inbuilt Safety Features

  • Over-voltage/under-voltage/voltage Imbalance protection
  • 3 Phase current imbalance protection
  • Cooling-air loss protection
  • Over-temperature protection
  • Internal Fuses for Resistive load element groups

Features & Benefits

  • UL & cUL Listed – Guaranteed Quality
  • Digital Controls using In-built PLC – Ease of Operator use, Profile loading, Data Logging
  • Local HMI Touch screen – Reliable, Ease of operation from one screen
  • Color coded Cam Locks – Ease of Cable Connections & No special tools required.
  • Powder Coating – Corrosion Prevention and Durability
  • Forklift Pockets & Caster Wheels – Easily movable by one person
  • Comprehensive Safety Circuits – Superior protection of Load Bank / Reliability
  • Nichrome “HeliCon” load elements, supported by SS rods – Reliability and Extend Life
  • Multiple Load Banks can be daisy chained – A networked string of load banks increases over all capacity for testing flexibility


  • Transport Cages
  • Automated Control
  • Certified Drawings
  • Remote Control
  • Special Colors
  • Utility Trailer Mounting


  • Data Center / Colocation etc.
  • Backup Generators
  • Emergency facilities – Health Care
  • Manufacturing
  • Telecom
  • Banking, Finance and Insurance
  • Service & Rental