Resistors

Designed to handle both locomotive and off-highway vehicle applications, the J-Style Grid Resistor offers superior durability and reliability.

With its robust grid construction, high thermal capacity, minimal maintenance requirements, and a design optimized for easy integration into existing systems the J-Style Grid Resistor stands up to the rigorous needs of continuous heavy-duty operation, providing constant performance operators can depend on.

• Versatile application: Designed for both locomotive and off-highway vehicle applications
• Superior durability and reliability: Robust grid construction ensures long-lasting performance under continuous heavy-duty operation
• High thermal capacity: Optimized to handle high temperatures while maintaining constant performance
• Minimal maintenance: Requires little upkeep, reducing downtime and maintenance costs
• Easy integration: Designed for seamless incorporation into existing systems, enhancing operational efficiency
• High-strength element design: State-of-the-art grid elements resist warpage even at temperatures above standard operating conditions
• Advanced insulation system: Utilizes high-strength, high-temperature board materials for extended board life and system longevity
• Improved airflow: Low back pressure on fans enhances air flow and heat transfer, improving overall system performance
• High power handling: Capable of managing up to 300 kW at 680 Amps in continuous operation
• Precise resistance: Resistor designs offer tolerances of +/- 5% of nominal values, tailored to specific operational requirements

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• Locomotive
• Mining
• Load Banks

Our Box Resistors are designed to withstand the rigorous demands of the locomotive industry ensuring reliable performance in any rail environment.

Known for their exceptional heat dissipation capabilities, our Box Resistors maintain stability and functionality even under high thermal loads. This is crucial for locomotive applications that require consistent voltage regulation and power control for effective traction and braking systems.

The combination of durable construction and precise engineering makes them an essential component for locomotives, promising enhanced performance and prolonged operational life.

• Designed for locomotive applications: Built to withstand the rigorous demands of the locomotive industry, ensuring reliable performance in any rail environment
• Exceptional heat dissipation: Maintains stability and functionality even under high thermal loads, crucial for voltage regulation and power control in traction and braking systems
• Durable construction: Engineered for longevity, enhancing overall performance and extending operational life
• Prolonged operational life: Exceeds overhaul maintenance intervals, reducing life cycle costs
• Support for aging locomotives: Service repair parts available for locomotives ranging from new to over 50 years old
• Wide resistance range: Available resistances from 0.5 ohms to 3.0 ohms to meet specific application needs
• High current handling: Designed to manage up to 1000 amps, supporting high-performance operations

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Progress Rail / EMD Locomotives

Our Shunting Resistors are engineered for precision and reliability in critical industrial and transportation systems. Designed to manage and measure electrical currents, these resistors are vital for applications requiring exact current diversion and monitoring.

Our Shunting Resistors are built with advanced materials that ensure high accuracy and minimal resistance variability, which is crucial for maintaining system stability and safety. These components are particularly effective in protecting sensitive circuits by providing a low-resistance path for electrical currents during fault conditions or overloads.

• Precision and reliability: Engineered for exact current management and monitoring in critical industrial and transportation systems
• Current diversion and monitoring: Vital for applications that require precise control and measurement of electrical currents
• Advanced materials: Built with materials ensuring high accuracy and minimal resistance variability, maintaining system stability and safety
• Circuit protection: Provides a low-resistance path for electrical currents during fault conditions or overloads, protecting sensitive circuits
• Versatile applications: Suitable for motor shunting, battery charging, and small resistive load applications
• Custom designs available: Both electrical and mechanical designs can be tailored to specific application needs
• Long manufacturing history: Manufactured since 1954, reflecting decades of expertise and reliability
• Extensive part offerings: Over 230 styles and part numbers available for a wide range of uses
• Service repair for aging locomotives: Supports locomotives from new to over 50 years old, providing critical replacement parts
• High power capacity: Capable of handling power levels up to 20 kilowatts

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Each unit is built to withstand extreme conditions, featuring robust construction and materials that offer high thermal capacity and excellent durability. The adaptability of our Shunting Resistors allows for customization to meet specific voltage and current specifications, making them an ideal choice for a wide range of industrial applications.

Our Crowbar Resistors are expertly crafted to provide superior protection in sophisticated electrical systems. These resistors play a crucial role in safeguarding against overvoltage conditions by diverting excess voltage away from sensitive components, ensuring system integrity and preventing potential damage.

Designed to activate during fault conditions, our Crowbar Resistors quickly and effectively absorb and dissipate the excess energy, stabilizing the system to prevent operational disruptions and hardware failures. This rapid response is essential for applications in power generation, rail transportation, and industrial automation, where reliability and safety are paramount.

• Superior protection: Designed to safeguard electrical systems by diverting excess voltage during overvoltage conditions, ensuring system integrity
• Rapid fault response: Quickly activates during fault conditions, absorbing and dissipating excess energy to stabilize the system and prevent hardware failures
• Critical for high-reliability applications: Essential in power generation, rail transportation, and industrial automation where reliability and safety are paramount
• Cooling options: Available in air-blown and free-air convection-cooled designs for optimized thermal management
• Advanced insulation: Uses the latest insulating materials to ensure safety and performance under demanding conditions
• Custom resistor elements: Tailored to meet specific resistance, watt density, inductance, and mechanical requirements
• Durable stainless steel construction: All stainless steel structures and hardware available for enhanced durability in harsh environments
• High voltage capacity: Designed for operating voltages up to 4,500 volts, accommodating high-power applications
• AC and DC grid configurations: Available in both AC and DC designs for versatile use across different systems
• Flexible packaging options: Roof-top and under-car packaging configurations to meet specific spatial and environmental requirements
• Custom designs: Proven design concepts and manufacturing technology provide tailored solutions to fit your specific application needs
• Optimized footprint: Systems are designed to fit desired dimensional and operational constraints for easy integration

We’re here to help! Contact us for comprehensive support and expert advice on our products. Reach out today to ensure you get all the information you need to make informed decisions.

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Each unit is built to withstand extreme conditions, featuring robust construction and materials that offer high thermal capacity and excellent durability. The adaptability of our Crowbar Resistors allows for customization to meet specific voltage and current specifications, making them an ideal choice for a wide range of industrial applications.