The horizontal resistor programme is for applications where resistors absorb inertial energy. These resistors cover the power range 0.37 - 400kW (for 380-500V), 560kW (for 690V). The vertical resistor programme is de-signed to absorb energy from raising or lowering loads. This programme ranges from 0.37-200kW (for 380-500V) and 315kW (for 690V).
The size and price of the brake resistors has been reduced by optimising the braking profile. For horizontal applications, braking is at its maximum for only a short time and the application is brought to a gentle stop. This reduces the time in which the resistor absorbs maximum energy. As a result, the average braking power is reduced from 10% to 6%.
For vertical applications, the braking is 'soft' in the beginning and end, with a short period of maximum braking. As a result the average braking power is reduced from 40% to 27%.