200 W ceramic discharge resistor – 4 Ω – 24 V system

Intended for load shedding of a nominal 24 V system, this ceramic resistor converts excess energy sent by a compatible regulator into heat. Its value of 4 Ω, tolerance of ±5%, and nominal power of 200 W allow sizing the load according to the controller and dissipation needs.

• Dissipates excess energy derived by your compatible load-shedding regulator as heat.
• Offers a nominal dissipation capacity of 200 W to form a suitable load-shedding charge.
• Allows selection of the load according to the controller's requirements with a value of 4 Ω and a tolerance of ±5%.

• Type of resistance: Fixed, wire-wound
• Support material: Ceramic
• Function: Load-shedding or discharge, also called dump-load
• Nominal dissipation power: 200 W
• Electrical resistance: 4 Ω
• Resistance tolerance: ±5%
• Nominal system voltage: 24 V with compatible regulator
• Dissipation at 24 V DC at terminals: Approximately 144 W for 4 Ω, following P = U²/R

Integrate a load-shedding charge into the 24 V system

This resistor receives energy derived by a regulator and converts it into heat. It integrates into a 24 V nominal voltage installation whose design includes a compatible load-shedding charge.

The controller maintains control of energy diversion according to load parameters and battery voltage. The resistor ensures dissipation but does not handle battery regulation.

Choose according to resistance and power to dissipate

The winding rests on a ceramic support. This fixed resistor combines a value of 4 Ω with a tolerance of ±5%; the controller must accept this load and have an appropriate load-shedding function.

The nominal power of 200 W does not correspond to constant dissipation. With a continuous voltage of 24 V directly at the terminals, the dissipation is approximately 144 W, calculated by the relation P = U²/R.

Plan the location and cooling

Choose an area offering good ventilation and keep heat-sensitive materials away from the resistor. The location must account for the heat produced during load-shedding.

Provide appropriate mounting and follow the controller's instructions during installation. Use must respect the permissible power of the resistor as well as the conditions necessary for its cooling.

Compatible with

• 24 V nominal systems equipped with a compatible regulator, with sizing adapted to the installation.
• Controllers accepting a 4 Ω load and equipped with a load shedding function adapted to the power to be dissipated.

Compatibility limits

• The resistor does not replace the battery charge regulator and does not function as an autonomous protection.
• Dissipation depends on the applied voltage; 200 W is the nominal power under the conditions provided by the manufacturer.

Precautions

• Ensure sufficient ventilation and keep materials sensitive to heat away.
• Use suitable mounting and follow the controller's instructions.
• Respect the permissible power and cooling conditions during dissipation.

Which regulator can control this resistor?

Choose a regulator with suitable load shedding and accepting a 4 Ω resistor. The power it directs to the load must also remain compatible with its dissipation capacity.

Why is the dissipation 144 W at 24 V?

The relation P = U²/R gives approximately 144 W for a 4 Ω resistor directly powered at 24 V DC. The value of 200 W corresponds to the nominal power, not to a permanent consumption.

Is this load sufficient to regulate the battery?

No, the regulator remains essential. It controls the load shedding by considering the battery voltage and charging parameters; the resistor converts the received energy into heat.

What precautions should be taken for the installation?

Install the resistor in a well-ventilated area, away from materials sensitive to heat. Use appropriate mounting and apply the controller's instructions.

2-year warranty.
15920