Quick Detail
• Wide Power Range – Available from 10W up to 10,000W to meet diverse application needs.
• Durable Construction – Chromium-alloy wire wound on high-quality ceramic base ensures long service life.
• High Safety – Coated with flame-retardant, heat-resistant resin for reliable operation.
• Excellent Insulation – Processed with high-temperature treatment for superior electrical performance.
• Stable & Versatile – Offers strong resistance to humidity and a broad adjustable resistance range.
• Custom Options – Supports mixed winding of flat and round wire to achieve tailored resistance values.
Description
The RX20 series variable resistor is a high-power adjustable component designed for demanding applications. With a rated power range from 10W to 10,000W, it is constructed using a chromium-alloy wire as the resistance element, ensuring stable performance and long service life. The resistor body is coated with a flame-retardant, high-temperature resin, except at the sliding contact area, providing superior insulation and reliability.
Equipped with a central rotating adjustment mechanism, the RX20 allows smooth and precise resistance tuning across a wide range of values. Its robust design ensures excellent resistance to humidity and consistent performance under harsh conditions. Additionally, this series supports multiple resistance configurations—flat and round wire elements can be combined in a single rheostat to meet customized requirements.
Engineered for versatility, high power handling, and adjustable precision, the RX20 Variable Resistor is ideal for laboratory, industrial, and electronic control applications.
Specification
| Temperature Coefficient of Resistance: | Within ±440ppm/°C |
| Rated Power Free Air: | 10W~10000W |
| Operating Temperature Range : | -25°C~+225°C |
| Resistance Range (Ohms): | See resistance range chart below |
| Tolerance: | ±5%, ±10% as per resistance range chart below |
| Type | Resistance Value | Tolerance |
| 100W | 1R0 – 2K7 | 5% |
| 120W | 1R0 – 2K7 | 5% |
| 150W | 1R0 – 2K7 | 5% |
| 200W | 1R0 – 2K7 | 5% |
| 300W | 1R0 – 2K7 | 5% |
| 400W | 1R0 – 2K7 | 5% |
| 500W | 1R0 – 2K7 | 5% |
| 600W | 1R0 – 2K7 | 5% |
| 750W | 1R0 – 2K7 | 5% |
| 1000W | 1R0 – 2K7 | 5% |
| 1200W | 1R0 – 2K7 | 5% |
| 1500W | 1R0 – 2K7 | 5% |
| 2000W | 1R0 – 2K7 | 5% |
| 2500W | 1R0 – 2K7 | 5% |
Dimension
Application
The RX20 Variable Resistor is widely used in applications requiring adjustable resistance and high power handling. Typical uses include:
• Power Electronics – Current limiting, load regulation, and power control.
• Testing & Calibration – Adjustable resistance for circuit testing, lab experiments, and calibration systems.
• Industrial Equipment – Motor drives, speed regulation, welding machines, and heating control.
• Educational & Research – Training kits, teaching labs, and research instruments requiring variable load adjustments.
• Energy Systems – Load banks, renewable energy testing, and voltage regulation.
Its high reliability, flameproof design, and broad resistance range make it suitable for both industrial and educational environments.
Advantage
• Factory direct supply, no middlemen.
• Completed certificates such as RoHS, REACH, etc and best quality assurance.
• Sufficient production capacity, short delivery time.
• Professional after-sales service team.
• OEM&ODM available.
Product Tags:
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RX20 10W~10KW Adjustable Wirewound Resistor with Chromium-alloy Wire for Stable Performance Images
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