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ASCO Avtron 4800 Stationary Load Bank (450-3000kW)

  • 4810
  • 4820
  • 4830
Call with Options for Price Quote: 1-888-331-5344
5,500.00 LBS

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The ASCO Avtron 4800 (K875A) Permanent Load Bank is designed for outdoor installation and offers a max capacity up to 3000 kW.


  • 4810 Load Capacity: Max capacity of 450, 500, 600, 750, or 1000 kW.
  • 4820 Load Capacity: Max capacity of 1250, 1500, 1750, or 2000 kW.
  • 4830 Load Capacity: Max capacity of 2500 or 3000 kW.
  • Standard Voltage Options: 3PH 208V, 3PH 240V, or 3PH 480V.
  • Duty Cycle: Rated for continuous operation.
  • Load Step Resolution: Choice of 5kW or 50kW minimum.
  • Controller: Remote manual toggle switch controller w/ NEMA 4 wall-mount enclosure. Controls include: Power On/Off switch, Blower Start/ Stop push buttons, Master Load On/Off switch, and Individual Load Step switches. Visual indicators include: Power On, Blower On, and Blower/Air Failure. See Options and Spec Sheet below for other options.
  • Control Power: An Integral Control Power Transformer is provided for control circuit operation. Also see Options below.
  • Cooling Power: Blower motor is factory-wired to the main load bus.
  • Cooling: Approximately 20,000 CFM cooling per infividual vertical frame is provided by integral TEFC or TEAO motor which is direct coupled to the cooling fan blade. Vertical airflow and discharge. The fan motor is fully protected with fuses, motor starter contractor, and overload relay.
  • Load Elements: ASCO Avtron brand load banks use helically wound chromium alloy Helidyne elements. Elements are fully supported across their entire length by segmented ceramic insulators on stainless steel rods.
  • Safety Features: Branch circuit fusing, a differential pressure switch provides cooling air loss protection, an over-temperature switch is provided to sense load bank exhaust temperature, blower motor circuit is protected by current limiting fuses, and thermal overload relays, operator warning and caution statements are located on appropriate access panels.
  • Load Connection: Copper bus bars with NEMA pattern are provided for customer load connections.
  • Enclosure: Heavy-gauge aluminized steel outdoor enclosure with high quality baked polyester powder coated finish. Designed for continuous outdoor weatherproof operation on a concrete pad or structural base. Forklift channels are provided in the base for lifting.
  • UL Listed.


4800-K875A Spec Sheet

4810-K875A Drawing

4820-K875A Drawing

4830-K875A Drawing

Avtron 2-Year Warranty


  • Local Controller (instead of remote)
  • Control Power from External 120V 1PH 60Hz Source (instead of a Control Power Transformer)
  • ADMS Digital Metering - (V, A, KW, Hz) with Data Logging Capability
  • Automatic Load Control
  • SIGMA 2 Digital Controls
  • Further Control Options (see Spec Sheet)
  • Arctic Rating for low temperature applications
  • Other Capacity/Volatge/Frequency Options available
4800 (K875A): 4810, 4820, 4830
4810 Max Capacity Options:
450, 500, 600, 750, 1000 kW
4820 Max Capacity Options:
1250, 1500, 1750, 2000 kW
48310 Max Capacity Options:
2500, 3000 kW
Voltage Options:
208V, 240V, or 480V
Minimum Load Step Resolution:
5 or 50 kW
Control Power:
Integral Control Power Transformer for control circuit operation
4810 Dimensions LxWxH (inches):
57 x 40 x 138
4820 Dimensions LxWxH (inches):
57 x 80 x 138
4830 Dimensions LxWxH (inches):
59 x 120 x 156
4810 Weight:
1500 lbs.
4820 Weight:
3000 lbs.
4830 Weight:
5500 lbs.
Limited Warranty:
2 Year

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