Sichuan Qixing Electronics Co., Ltd.
                                                                                                           
Verified Supplier
21 Years
Since 2005
Menu

BC1 Wirewound Rotary Variable Resistor 25W-500W 10Ω-1KΩ Porcelain Disc Sliding Rheostat for Industrial Electrical Control

Price Negotiable
Price: Negotiable
MOQ: Negotiable
Delivery Time: Negotiable
Brand: BONENS
Product Description
BC1 Series Wirewound Rotary Variable Resistor
The BC1 series of rotary-arm sliding wire porcelain disk variable resistors are designed for voltage and current adjustment applications in industrial electrical equipment. These high-power resistors feature alloy resistance wire wound on ceramic skeletons with high-temperature enamel coating, providing reliable performance in demanding environments.
Key Features
  • Power range: 25W to 500W with resistance values from 10Ω to 1KΩ
  • High power capacity with moisture resistance and wide adjustment range
  • Suitable for AC voltage up to 380V and DC voltage up to 220V
  • ROHS compliant and lead-free construction
  • Available in single, duplex, and triple configurations
BC1 wirewound rotary variable resistor product image
Technical Specifications
Electrical Characteristics
Parameter Specification
Standard Resistance Range 1Ω to 5KΩ
Resistance Tolerance ±10%
Maximum Working Voltage 1000V AC, 2500V Insulation
Temperature Rise 25-100W: ≤300K; ≥150W: ≤350K
Sliding Travel 25-50W: 280°±5°; ≥100W: 300°±5°
Environmental Characteristics
Parameter Specification
Operating Temperature -55°C to 350°C
Vibration Resistance 10-200Hz, 40m/s², ΔR ≤ ±3%
Load Durability R ≤ 1KΩ: 5000 cycles; ΔR ≤ ±5%
Dimensional Specifications
Model Power Dimension A (mm) Dimension B (mm) Dimension 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
Applications
Ideal for telecommunications, railway transportation, electrical equipment, medical devices, and industrial machinery. Suitable for regulating control voltage, current, or adjustable load resistance in low-frequency AC or DC electrical systems.
BC1 resistor internal construction diagram BC1 resistor assembly components
Quality Assurance
Our manufacturing facility maintains strict quality control with pre-production sampling and final inspection before shipment. We offer OEM and ODM services with advanced production equipment and professional R&D capabilities.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Sichuan Qixing Electronics Co., Ltd.
Location 2nd Floor, Building 2, 388 Rongtai Avenue Chengdu Sichuan China
Contact Person weidong tong

Request A Quote

Please check your email address.
Your message must be at least 20 characters.