BC1 Porcelain Disk Variable Resistor 25W-500W 10Ω-1KΩ Sliding Rheostat for Industrial Voltage Regulation
The BC1 series porcelain disk variable resistor is a high-power adjustable resistor designed for industrial electrical applications. Featuring a durable ceramic construction with alloy resistance wire and high-temperature glaze coating, this sliding rheostat provides reliable voltage and current regulation in AC/DC systems.
- Power range: 25W to 500W with resistance values from 10Ω to 1KΩ
- High-temperature resistant glaze coating for moisture protection and durability
- Wide adjustment range with smooth sliding contact operation
- Available in single, duplex, triple, and quadruple configurations
- ROHS compliant and lead-free construction
- Designed for voltages up to 500V AC and 220V DC
| Parameter | Specification |
|---|---|
| Standard Resistance Range | 1Ω to 5KΩ |
| Resistance Tolerance | ±10% |
| Power Rating | 25W, 50W, 100W, 150W, 300W, 500W |
| Operating Temperature | -55°C to 350°C |
| Insulation Resistance | ≥100MΩ at 500V DC |
| Maximum Working Voltage | 1000V (Insulation voltage: 2500V) |
| Sliding Travel | 280°±5° (25-50W), 300°±5° (≥100W) |
| Model | Power | A (mm) | B (mm) | F (mm) |
|---|---|---|---|---|
| BCI-25W | 25W | 44 | 43 | 50 |
| BCI-50W | 50W | 66 | 43 | 75 |
| BCI-100W | 100W | 84 | 43 | 95 |
| BCI-150W | 150W | 106 | 48 | 120 |
| BCI-300W | 300W | 170 | 74 | 180 |
| BCI-500W | 500W | 210 | 60 | 230 |
This variable resistor is ideal for voltage and current regulation in industrial electrical equipment, DC motor speed control, railway systems, medical equipment, and various low-frequency AC/DC applications requiring precise resistance adjustment.
All BC1 resistors undergo rigorous quality control including pre-production sampling and final inspection before shipment. Our manufacturing facility maintains ROHS compliance and lead-free standards for all products.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.