Wire Wound Resistors & Rheostats
High-power wire wound resistors and rheostats for industrial, testing, and power electronics applications. Built for reliability in demanding environments.
Wire Wound Resistors
Precision wire wound resistors from 5W to 200W in ceramic and aluminum-housed constructions.
| Model | Resistance Range | Power Rating | Tolerance | Construction |
|---|---|---|---|---|
| WWR-5 | 0.1Ω – 5kΩ | 5W | ±5% | Ceramic tube |
| WWR-10 | 0.1Ω – 10kΩ | 10W | ±5% | Ceramic tube |
| WWR-25 | 0.5Ω – 25kΩ | 25W | ±5% | Ceramic tube |
| WWR-50 | 1Ω – 50kΩ | 50W | ±5% | Ceramic body |
| WWR-100 | 1Ω – 100kΩ | 100W | ±5% | Aluminum housed |
| WWR-200 | 5Ω – 50kΩ | 200W | ±10% | Aluminum housed |
Rheostats
Variable wire wound resistors for current control, motor speed regulation, and laboratory use.
| Model | Resistance | Max Current | Power | Type |
|---|---|---|---|---|
| RH-25 | 1Ω – 1kΩ | 5A | 25W | Rotary |
| RH-50 | 1Ω – 2.5kΩ | 7A | 50W | Rotary |
| RH-100 | 5Ω – 5kΩ | 10A | 100W | Rotary |
| RH-300 | 10Ω – 10kΩ | 15A | 300W | Slider |
| RH-500 | 10Ω – 5kΩ | 25A | 500W | Slider |
Custom Engineering
We manufacture wire wound resistors and rheostats to your specific requirements. Our expertise covers low-value precision resistors to high-power load banks.
- Custom resistance values and power ratings
- Various mounting options (chassis, panel, PCB)
- High-temperature wire options
- Vitreous enamel or silicone coating
- Non-inductive winding available
- Custom enclosures and terminal configurations
Applications
Our wire wound resistors and rheostats serve critical roles across demanding industries.
Motor Speed Control
Variable resistance for DC motor regulation and speed control systems.
Load Testing
Resistive loads for generator, UPS, and power supply testing.
Power Electronics
Snubber, braking, and discharge resistors for power conversion.
Laboratory & Heating
Precision adjustable standards and industrial heating elements.