BRAKING RESISTORS //
Braking Resistors

At OHMIC RESISTORS, we manufacture Dynamic Braking Resistors with thermal ratings to suit customer requirements within resistor design criteria. Designs may be air natural or force air cooled. The purpose of a dynamic braking resistor is, when inserted into a motor or VFVV drive circuit, to slow down an electric motor and upstream equipment by converting kinetic energy into heat. The design of dynamic braking resistors depends on cyclic ratings of given systems, for example electric locomotives or mill drives.

Dynamic braking resistors for rail electric multiple units (EMU), locomotives and heavy duty trucks. These types of dynamic breaking resistances can be air natural or forced air cooled.

The Dynamic Braking Resistors manufactured at OHMIC RESISTORS are used in various local and Inter city express trains. In dynamic train braking, the kinetic energy of the train is transformed into electric current at the traction motors of the locomotive.

BRAKING RESISTORS //
Danotherm Aluminum Housed Resistors

Danotherm’s aluminum housed resistors are engineered for demanding industrial environments where reliability, performance, and thermal stability are essential. Designed with precision in Denmark and built for global applications, these power resistors combine high energy dissipation with a rugged, compact form factor that simplifies installation in motor drives, power converters, and automation systems.

Each resistor is encapsulated in an anodized aluminum housing that provides superior heat conduction and mechanical protection. This design ensures excellent thermal management and long-term stability, even under continuous load or vibration-intensive conditions. With optimized surface geometry for heat transfer, the resistors can be mounted directly onto heat sinks or metal surfaces, achieving outstanding cooling efficiency and extended lifespan.

Danotherm’s manufacturing expertise allows for wide customization — resistance values, tolerances, and mounting options can be tailored to meet specific electrical and thermal requirements. Their precise construction supports high pulse loads and overload conditions often encountered in dynamic braking, DC-link stabilization, or power testing circuits.

Engineers choose Danotherm aluminum housed resistors for their proven durability, consistent performance, and design flexibility. Whether used in renewable energy systems, heavy-duty industrial drives, transportation, or test equipment, they deliver reliable energy control where precision and safety cannot be compromised.