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ASCO Avtron 4100 Stationary Load Bank (50-150kW)

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Call with Options for Price Quote: 1-888-331-5344
754.00 LBS

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The ASCO Avtron 4100 (LSH) Permanent Load Bank is designed for outdoor installation and offers a max capacity up to 150 KW.


  • Load Capacity: Max capacity of 50, 75, 100, or 150kW.
  • Standard Voltage Options: 1PH 240V, 3PH 208V, 3PH 240V, or 3PH 480V.
  • Duty Cycle: Rated for continuous operation.
  • Load Step Resolution: 5kW 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 5,000 CFM cooling is provided by integral TEFC or TEAO motor which is direct coupled to the cooling fan blade. Horizontal 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.


4100-LSH Spec Sheet

4100-LSH Drawing

Avtron 2-Year Warranty


  • Starting Price: $498.00
  • Wired to the Load Bank.
  • Replaces the standard Remote Controller.

OPTIONAL ADMS Digital Power Meter (R2)

  • Starting Price: $1,368.00
  • Provides 3-line digital display of Voltage, Current, Frequency, and Power Measurements.
  • Allows real-time data acquisition and data logging from a Laptop PC or PDA.
  • See brochure for more details.

OPTIONAL Automatic Load Control (R4)

  • Starting Price: $1,264.00
  • Automatically keeps a minimum load on a generator set.
  • Loose current transformer provided to monitor building current.
  • Ability to toggle between automatic and manual modes.
  • See brochure for more details.

OPTIONAL Sigma 2 Controls

  • Control Platform (R6A) - Starting Price: $4,843.00
  • Intelligent Hand-held Terminal (IHT) Controller (EI02603) - Starting Price: $1,434.00
  • IHT 10-Meter Interconnection Cable (PR00409) - Starting Price: $179.00
  • Sigma 2 replaces the standard Toggle Switch Controls on single-voltage 4100 load banks with 5kW Load Step Resolution.
  • The Control Platform requires a Hand-held controller with interconnection cable (see above) or another Sigma 2 control option.
  • See brochure for more details and other control options.


  • Control Power from External 120V 1PH 60Hz Source (instead of a Control Power Transformer)
  • Other Control Options (see Spec Sheet)
  • Arctic Rating for low temperature applications
  • Other Capacity/Volatge/Frequency Options available
4100 (LSH)
Max Capacity Options:
50, 75, 100, or 150 kW
Voltage Options:
1PH 240V, 3PH 208V, 3PH 240V, or 3PH 480V
Load Step Resolution:
5 kW
Control Power:
Integral Control Power Transformer for control circuit operation
Dimensions LxWxH (inches):
51 x 27 x 35
Weight - Load Bank:
500 lbs.
Limited Warranty:
2 Year

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