BC1 Disc Glazed Porcelain Variable Resistor 25W-2000W 1Ω-5KΩ Spiral Arm Rheostat for Motor Control
The BC1 series disc glazed porcelain variable resistor features a spiral arm rheostat design with power ratings from 25W to 2000W. These industrial-grade adjustable resistors provide precise voltage and current regulation for electrical equipment and motor control applications.
- Power range: 25W to 2000W across multiple configurations
- Resistance range: 1Ω to 5KΩ with ±10% tolerance
- High-temperature glazed construction for moisture resistance and durability
- Spiral arm sliding mechanism for smooth resistance adjustment
- Available in single, duplex, and multiple combined configurations
- Complies with ROHS specification and lead-free standards
Standard resistance range: 1Ω-5KΩ
Resistance tolerance: ±10%
Maximum working voltage: 1000V AC, 2500V insulation
Temperature rise: 300K (25-100W), 350K (≥150W)
Sliding travel: 280°±5° (25-50W), 300°±5° (≥100W)
Operating temperature: -55℃ to 350℃
Vibration resistance: 10-200Hz, 40m/S²
Load durability: 5000 cycles (≤1KΩ), 1000 cycles (>1KΩ)
Moisture resistance: 40±2°C, 95-98% RH for 48 hours
| Model | Power | Dimension A (mm) | Dimension B (mm) | Dimension F (mm) |
|---|---|---|---|---|
| BC1-25W | 25W | 44 | 43 | 50 |
| BC1-50W | 50W | 66 | 43 | 75 |
| BC1-100W | 100W | 84 | 43 | 95 |
| BC1-150W | 150W | 106 | 48 | 120 |
| BC1-300W | 300W | 170 | 74 | 180 |
| BC1-500W | 500W | 210 | 60 | 230 |
Ideal for voltage and current regulation in industrial electrical equipment, DC motor speed control, transportation systems, medical equipment, and various low-frequency AC/DC electrical applications requiring precise resistance adjustment.
All BC1 variable resistors undergo pre-production sampling and final inspection before shipment. Manufactured in compliance with ROHS and lead-free standards, ensuring reliable performance in demanding industrial environments.
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