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Mosebach X250S Portable Load Bank (250kW)

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270.00 LBS

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The Mosebach X250S Portable Resistive Load Bank is ideal for testing and maintaining generators and UPS Systems up to 250 kW.


  • Load Capacity: 250kW at 240 & 480 VAC 3PH 60Hz. Derates to 188kW at 208VAC 3PH, 125kW at 240V 1PH, and 31kW at 120V 1PH.
  • Duty Cycle: Rated for continuous opertion.
  • 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: Requires 120V single-phase 60Hz external power source.
  • Cooling System: Quiet high-speed cooling fans.
  • 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 (2 per phase, 1 ground).
  • Enclosure: Lightweight aluminum indoor enclosure with forklift channels. Casters and lifting bar (as shown in picture) are optional accessories (see below).


X250S Spec Sheet

X250S Manual

Multi-Unit Remote Control Software Brochure


  • Multi-Unit Remote Control Software Kit
  • Mobility Casters Kit
  • Center Lifting Bar
  • Starter Spare Parts Kit
  • Extended Warranty
  • NRTL Certification
  • Load Cable Set


  • Steadypower 20ft or 50ft Cable Set
Max Capacity:
250 kW at 480 & 240 VAC 3PH (Derates at other voltages)
Three Phase Voltages:
480, 240, 208
Single Phase Voltages:
240, 120
Load Step Resolution:
5kW at 240 & 480V 3PH (Derates at other voltages)
Control/Blower Power:
External 120 VAC, 1 Phase, 60 Hz power source
Dimensions LxWxH (inches):
43 x 25 x 44
250 lbs.
1 Year Parts and Labor; 2 Years Resistors
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