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Mosebach XL400 Portable Load Bank (400kW)

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SKU: XL400 Category Brand:

The Mosebach XL400 Portable Resistive Load Bank is ideal for testing and maintaining generators and UPS Systems up to 400 kW.


  • Load Capacity: Up to 400kW at 240 & 480 VAC 3PH 60Hz. Derates to 300kW at 208 VAC 3PH 60Hz.
  • Duty Cycle: Rated for continuous operation.
  • Load Step Resolution: 5kW at 240/480V.
  • Controls: Local manual control panel includes Power On/Off switch, Master Load On/Off switch, and Individual Load Step switches.
  • Instrumentation: Digital metering (V, A, Hz, kW) and data logging via a USB port.
  • Control/Cooling Power: From internal load or external 240 or 480V 3PH source.
  • Cooling System: Panel cooling fan.
  • Load Elements: Mosebach’s Cross Wire Resistor have no ceramics and therefore are lighter and more durable than any other resistor on the market today. The resistors are supported by high temperature Mica supports.
  • Safety Features: Over-temperature and over-voltage sensors.
  • Load Connections: Quick disconnect cam-type male connectors on the back of the load bank (3 per phase, 1 ground).
  • Enclosure: Lightweight aluminum indoor enclosure with forklift channels. Casters, Control Panel Cover, and Louvers (as shown in picture) are optional accessories (see below).


XL300-400 Spec Sheet

Multi-Unit Remote Control Software


  • Multi-Unit Remote Control Software Kit
  • Mobility Casters
  • Control Panel Cover and Louvers (for Outdoor Use)
  • Louver Covers (for Outdoor Use)
  • Starter Spare Parts Kit
  • Extended Warranty
  • NRTL Certification
  • Single Voltage Options
  • Load Cable Set


  • Steadypower 20ft or 50ft Cable Set

Max Capacity

Three Phase Voltages

Load Step Resolution

Control/Blower Power

Dimensions LxWxH (inches)




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