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{"title":"BC1 Variable Power Resistor Rheostat Round Disk Wirewound Adjustable Resistor","imgUrl":"https:\/\/img.chinax.com\/nimg\/20\/79\/dbab8471837928d8d4826c8a3e4f-200x200-1\/bc1_variable_power_resistor_rheostat_round_disk_wirewound_adjustable_resistor_25w_50w_100w_150w_200w_300w.jpg","attrs":{"Brand Name":"BONENS","Model Number":"DBI","Place of Origin":"Sichuan, China","Terminal Resistance":"\u22640.2%or1\u03a9"}}
{"title":"High Power Wirewound Potentiometer Rotary Rheostat Disk Ceramic Variable","imgUrl":"https:\/\/img.chinax.com\/nimg\/20\/79\/dbab8471837928d8d4826c8a3e4f-200x200-1\/high_power_wirewound_potentiometer_rotary_rheostat_disk_ceramic_variable_resistor_25w_50w_bc1_50w_bc1.jpg","attrs":{"Brand Name":"BONENS","Model Number":"DBI","Place of Origin":"Sichuan, China","Terminal Resistance":"\u22640.2%or1\u03a9"}}
The BC-1 wire wound resistor features high resolution capability with a wide resistance range. It offers excellent heat resistance, humidity resistance, and wear resistance characteristics. Suitable for voltage and current adjustment in power equipment and circuits not exceeding 380V AC or 220V DC.
Technical Specifications
Maximum working voltage: 1000V; Insulation voltage: 2500V
Temperature rise: 25-100W models ≤300K; ≥150W models ≤350K
Linear deviation: Not greater than ±10% across entire travel
Control shaft rotation: 5,000 cycles within ≥90% travel
High temperature test: 40°C for 6 weeks (6 days), insulation resistance <1.5mΩ
The BC1 series of rotor-arm sliding wire porcelain disk variants are designed for voltage and current adjustment in industrial electrical equipment up to 500 volts. The resistor uses a round ceramic skeleton with Kanthal copper or nickel chromium wire as resistance material, coated with high-temperature enamel and bonded to the ceramic chassis. The sliding grip and brush mechanism provides variable resistance values.
Technical Parameters
ELECTRICAL CHARACTERISTICS
ENVIRONMENT CHARACTERISTICS
Standard resistance range
1Ω~5KΩ
Temperature range
-55℃~350℃
Resistance tolerance
±10%
Vibration
10~200HZ,40m/S2, 3h△R≤±3%R
Terminal resistance
≤0.2% or 1Ω
Temperature cycling
-55°,30min,85°,30min △R<+3%R,R1>500MΩ
Insulation resistance
≥100mΩ(500Vdc)
Humidity
40±2°,RH:95%-98% 48h△R≤±3%R,R12100MΩ
Maximum heating temperature
350℃
Load endurance
R≤1KQ,5000 cycles R≤1KQ, 1000 cycles△R≤±5%R
Mechanical travel
300°±10°
Shock resistance
60~100 times/min, 150m/s2,4000 times
Applications
Suitable for telecommunications, transportation railways, electrical equipment, medical devices, industrial equipment, and low-frequency AC/DC electrical equipment for voltage/current regulation or adjustable load resistance.
Product Dimensions
Frequently Asked Questions
Q1: How can I place an order?
A: You can contact us by email about your order details, or place order online.
Q2: How can I pay you?
A: After you confirm our PI, we will request payment via T/T, Paypal, or Western Union.
Q3: What's the order procedure?
A: First we discuss order and production details by email. Then we issue a PI for your confirmation. Prepayment or deposit is required before production begins. Production typically takes 7-15 days for items not in stock. Before completion, we'll contact you for shipment details and balance payment. After payment settlement, we prepare shipment.
Q4: How do you handle defective products?
A: We provide replacements for defective items, either through credit or in the next shipment.
Q5: How do you check goods during production?
A: We conduct spot inspections and finished product inspections at each production stage.