Power Resistors
Industrial Resistors for Power Electronics
At Rectificadores Guasch, we supply resistors for industrial power electronics applications, combining standard products from leading manufacturers with custom-developed solutions.
As a distributor of Miba Resistors, we offer advanced resistor technologies for demanding applications, with particular emphasis on the renowned UXP series for energy management and critical industrial applications.
Our portfolio includes cemented and vitreous enamelled wire-wound resistors, resistors housed in aluminium cases or heat-sink enclosures, braking resistors for variable frequency drives, and other solutions for energy dissipation, capacitor discharge and current limiting.
We complement this offering with the design and supply of resistive load banks and custom-engineered solutions tailored to the specific requirements of each customer and application.
High power resistors are designed for applications where energy dissipation, electrical stability and thermal management are critical factors.
At Rectificadores Guasch, we place particular emphasis on the Ultra High Power range from Miba Resistors, featuring compact low-inductance solutions for heatsink mounting, capable of covering applications from 350 W up to 3,000 W, with high dielectric strength and excellent partial discharge performance.
Their design makes them especially suitable for demanding power electronics applications where reliability, overload capability and compact integration are key requirements.
Typical applications:
- AC/DC and DC/DC power converters.
- Variable speed drives and motor control systems.
- DC-Link capacitor pre-charge and discharge circuits.
- Industrial power supply systems.
- Load banks and test equipment.
- Renewable energy converters and HVDC applications.
High voltage resistors are designed for applications that require operation at elevated voltage levels while maintaining electrical stability, safety and long-term reliability.
At Rectificadores Guasch, we offer solutions based on the technology of Miba Resistors, featuring non-inductive thick-film resistors specifically developed for high voltage applications, providing excellent insulation performance, stability and precision.
Their design makes them particularly suitable for applications where voltage control, safe energy discharge or accurate measurement are critical requirements.
Typical applications:
- Voltage divider networks.
- High voltage power supplies.
- Capacitor discharge and balancing circuits.
- High voltage measurement and instrumentation equipment.
- Industrial power electronics.
- Power conversion and transmission systems.
Wire-wound resistors provide a robust and versatile solution for industrial applications requiring power dissipation, electrical stability and mechanical flexibility.
Our range includes both cemented and vitreous enamelled wire-wound resistors, available in a variety of constructions, terminal configurations and mounting options. Depending on the application, they can be supplied in adjustable or non-inductive versions, as well as with resistance wire or corrugated ribbon elements for higher power ratings.
Cemented resistors cover power ranges from medium-duty applications up to high dissipation solutions, with ratings available up to 1,150 W in tubular formats and up to 1,750 W in corrugated ribbon designs. Vitreous enamelled resistors offer a construction particularly suited to demanding industrial environments, with tubular, flat and corrugated ribbon series that allow optimisation according to available space, required power and mounting conditions.
Typical applications:
- Braking resistors.
- Capacitor discharge circuits.
- Current limiting.
- Resistive loads.
- Industrial control and regulation equipment.
- Applications requiring low inductance characteristics.
Metal enclosed braking resistors are designed to dissipate the energy generated by motors and electric drives during deceleration, stopping or lowering operations.
Our range includes wire-wound resistors housed in perforated metal enclosures, providing optimised natural ventilation and protection against accidental contact. They are particularly suitable for integration into electrical panels, variable frequency drives, servo drives and industrial systems where a robust, safe and easy-to-install solution is required.
They are available in a wide range of resistance values, power ratings and mechanical configurations, and can be supplied with integrated thermal protection when required by the application. Depending on the model, versions are available with IP20, IP23 or higher protection ratings for more demanding environments.
Typical applications:
- Variable frequency drives (VFDs).
- Servo drives and motor drive systems.
- Elevators and lifting systems.
- Cranes and overhead cranes.
- Industrial automation equipment.
- Energy dissipation in electrical control panels.
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