The braking resistors manufactured by Gupta Permold are an integral part of the Dynamic Braking System used on most mass transit vehicles today. The Dynamic Braking System is what is responsible for slowing down a big train or a small people mover from upwards of 80 mph to a comfortable cruise without any jerking or sudden movements. Consequently, this allows for passengers not to have the sensation of being "thrown" around the cabin.

Similar to Gupta Permold's other mass transit propulsion products, the braking resistor operation is under stringent quality control during all stages of production.

Resistor wire up to .25" thick is edgewise wound into coils and then skillfully laced upon resistive ceramic-lined cages to form high-performance electrical resistors. Each and every resistor is 100% tested for electrical properties.

After resistor coils are manufactured, they are carefully installed using precision tools and instruments onto mounting rails. These subassemblies are commonly referred to as "Resistor Banks".

The braking resistor banks are then in turn mounted into housings to form the final assembly. As always, each resistor bank is 100% performance tested prior to shipping by our skilled quality assurance team.