Should you choose a load bank with natural ventilation or forced ventilation?

A tailor-made load bank must be designed to meet your technical needs as closely as possible. Thus, depending on the regulatory or normative constraints of a sector of activity or the ergonomic and technical environment of electrical installations, the choice of load bank will vary.

This is particularly the case for defining the correct load bank: either natural ventilation or forced ventilation.

To choose the system best suited to your specificities, we carried out a comparative analysis.

Definition of a natural ventilation load bank

“Natural ventilation” or “natural convection” load banks offer a simple cooling system via ambient air.

Natural ventilation has a noiseless operation and a reduction in cost compared to other types of ventilation up to 100kW (Higher power possible on request).

However, the heat dissipated through the resistors heats the walls of the case, which requires precautions for use (breathing space).

Technical characteristics of a natural ventilation load bank

Among the technical characteristics of METAL DEPLOYE RESISTOR load banks with natural ventilation system:

  • Power from 5 to 100 kW in a three-phase 400V chassis
  • Connection in the lower part (cold zone)
  • Protection index IP13 or IP23

The naturally ventilated load banks all have the following options:

  • A control cabinet
  • A terminal block
  • wheel-base fitting

Advantages and disadvantages of a natural ventilation load bank

Advantage Inconvenience
  • Noiseless ventilation
  • Less expensive cost
  • Handling equipment: rollers
  • Robustness
  • Optional: control cabinet, terminal block, roller equipment
  • Heating of the housing walls
  • More handling precautions
Discover our benches with natural ventilation

Definition of a fan-forced load bank

What is the principle of a forced ventilation load bank? The cooling system is directly integrated, which allows more power to be supplied by dissipating the heat emitted by the resistive elements.

Indeed, from 100 kW, it is necessary to cool the resistive elements using an axial fan. This ventilation can be either horizontal or vertical.

Technical characteristics of a forced ventilation load bank

Among the technical characteristics of METAL DEPLOYE RESISTOR load banks with ventilated ventilation system:

  • Power from 20kW to 1200 kW at 400V three-phase, steps from 1kW
  • Quiet axial fan – IP55 motor
  • Safety switch for ventilation control

Among the options included with the ventilated load bank:

  • A control cabinet
  • A base with fork passage
  • Terminal blocks installed on the side face
  • roller equipment
  • A transport trailer

Advantages and disadvantages of a fan-forced load bank

Advantage Inconvenience
  • Silent ventilation (IP55 motor)
  • security
  • Ventilation control
  • Robustness
  • Control cabinet
  • Ease of transport and handling: trailer, castor, forklift base
  • Cost
  • Footprint
Discover our forced ventilation benches

Find our:
– METAL DEPLOYE RESISTOR load bank range
Range of tailor-made load banks