| Model | Rated Power(W) | Resistance Range (Ω) | Contour Dimensions (mm) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fixed | Adjustable | L | L₁ | L₂ | ΦD | Φd | H | H₁ | d₁ | t | d2 | B | B₁ | ||
| RX20(T) | 8 | 5.1‑3.3k | — | 35±1.5 | — | — | 14±2 | 5.5±0.7 | — | 28.5±2.5 | — | — | — | ||
| 10 | 5.1‑10k | 5.1‑200 | 41±1.5 | — | — | 14±2 | 5.5±0.7 | — | 28.5±2.5 | — | — | — | |||
| 16 | 5.1‑15k | 5.1‑220 | 45±1.5 | 66±2 | 82±2 | 17±2 | 8±0.7 | 41±2 | 31±2.5 | 2 | 5 | 15 | 4.5 | ||
| 20 | 5.1‑20k | 5.1‑430 | 51±2.0 | 72±2 | 88±2.2 | 17±2 | 8±0.7 | 41±2 | 31±2.5 | 2 | 5 | 2 | 20 | 5.5 | |
| 25 | 10‑24k | 10‑510 | 51±2.0 | 77±3 | 88±3 | 17±2 | 8±0.7 | 41±2 | 31±2.5 | 2 | 5 | 2 | 20 | 5.5 | |
| 30 | 10‑30k | 10‑1.0k | 71±2.2 | 97±3 | 108±3 | 21±2.5 | 12±0.8 | 51.5±2 | 35±2.5 | 2 | 5 | 2 | 20 | 5.5 | |
| 40 | 20‑51k | 20‑1.2k | 87±2.2 | 113±3 | 124±3 | 21±2.5 | 12±0.8 | 51.5±2 | 35±2.5 | 2 | 5 | 2 | 20 | 5.5 | |
| 50 | 20‑51k | 20‑1.5k | 91±2.4 | 120±3 | 135±3 | 21±2.5 | 12±0.8 | 51.5±2 | 35±2.5 | 2 | 5 | 2 | 20 | 5.5 | |
| 75 | 24‑56k | 24‑2.0k | 140±3.2 | 170±4 | 184±4 | 29±3 | 20±1.5 | 59±2 | 43±3 | 3.5 | 6 | 30 | |||
| 100 | 24‑62k | 24‑2.7k | 170±3.5 | 200±4 | 214±4 | 29±3 | 20±1.5 | 59±2 | 43±3 | 3.5 | 6 | 30 | |||
| 150 | 20‑91k | 20‑4.3k | 215±3 | 244±4 | 259±4 | 29±3 | 20±1.5 | 59±2 | 43±3 | 3.5 | 6 | 30 | |||
| RXG(T) | 200 | 4.7‑12K | 5.1‑3K | 215±3 266±3 | 247±4 296±4 | 259±4 308±4 | 38±3 30±2 | 25±1.5 16±0.8 | 84±3 71±2 | 58±2 50±2 | 4 | 9 | 3 2 | 35 26 | 6.5 |
| 250 | 4.7‑12K | 5.1‑3K | 266±2 | 296±3 | 308±4 | 30±2 | 16±0.8 | 71±2 | 50±2 | 4 | 9 | 2 | 26 | 6.5 | |
| 300 | 4.7‑12K | 5.1‑3K | 266±2 | 298±3 | 310±4 | 36±2 | 22±1.2 | 82±3 | 58±2 | 4 | 9 | 3 | 35 | 6.5 | |
| 400 | 5.1‑10K | 6.2‑3K | 250±2 | 280±3 | 298±4 | 54±2 | 30±2 | 98±3 | 79±3 | 8 | 16 | 3 | 50 | 6.5 | |
| 500 | 5.1‑10K | 6.2‑3K | 300±2 | 330±3 | 348±4 | 54±2 | 30±2 | 98±3 | 79±3 | 8 | 16 | 3 | 50 | 6.5 |
Product Introduction
RX20(T) and RXG(T) series adjustable vitreous‑enamel wire‑wound resistors are high‑power adjustable rheostats, manufactured with high‑resistance alloy wire wound on ceramic core and coated with special vitreous enamel protective layer. Featuring excellent heat‑dissipation performance, high overload capacity and stable resistance value under continuous operation. Both fixed‑value and adjustable tapping versions are available to satisfy different circuit adjustment requirements.
Key Features
- High power rating from 8W up to 500W
- Dual options: fixed resistance & adjustable tapping type
- Vitreous enamel coating, moisture‑proof, anti‑corrosion, good thermal stability
- Wide resistance range, low temperature coefficient
- Robust ceramic body structure, suitable for long‑time continuous load work
- Custom resistance and power specifications are acceptable
Main Applications
- Industrial equipment load testing
- Motor braking & speed regulation
- Power cabinet, UPS equipment
- Instrument calibration, laboratory test bench
- Mechanical and electrical control system
Product Specification
Model range: RX20(T) 8W‑150W, RXG(T) 200W‑500W Please refer to dimension table for detailed outline size and resistance parameters.
About Us
Guangdong Qingda Electronics is a professional manufacturer of wire‑wound resistors, cement resistors, high‑voltage resistors and power load components. We provide standard and customized resistor solutions for global industrial customers.



