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12.5W Ceramic Wire Wound Rheostat Vitreous Enameled Variable

Categories Wire Wound Rheostat
Brand Name: ZENITHSUN
Model Number: BCI
Certification: RoHs
Place of Origin: Shenzhen,China
MOQ: 20pcs
Price: USD13.00-USD20.00
Payment Terms: T/T, L/C, D/A, D/P, Western Union,paypal
Supply Ability: 10000pcs/week
Delivery Time: 10-12 working days
Packaging Details: cartons /wooden case
Rated Power: 12.5W
Resistance: 3Ω - 1KΩ
Tolerance: ±10%
Product colour: Brown,green
Coating: Vitreous Enamelled or Cement Coated
Wire Type: flat or round
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12.5W Ceramic Wire Wound Rheostat Vitreous Enameled Variable

12.5W Ceramic Vitreous Enameled Variable Wire Wound Rheostats

Structure :
1.BCI series Variable Rheostat is wound with copper or chromium-alloy wire as a resistance element. Except for the slide contact surface,the entire component is coated with a high-temperature,non-flammable resin.After cooling and drying, insulation is applied through a high-temperature process.
2.Then a centered rotatingadjuster component is installed,which slides along the resistance element and varies the resistance to the desired value.
3.Single unit with multiple winding resistance values is available.
4.Different ceramic raw material & knobs,made-to-order rheostats available.

Features:
1.BC1 series Variable Rheostats called varistors or potentiometers.
2.Used as two connections terminals of varistors or as a potentiometer with three connection terminals. When single rheostat cannot meet its power,which can be increased by connection of multiple rheostats,max up to 6 connected rheostats.

3.Any 3-terminal potentiometer can be wired as a rheostat by connecting to one end of the resistive track and to the wiper. It is best practice to connect the wiper together with the other end of the resistive track. Doing this prevents circuit interruption in case the wiper loses connection with the resistive track and also reduces noise during adjustment.

Specification

Performance Charactertics
TestConditions of TestTesting Results
Resistance ToleranceTesting Voltage ≤3V,Ambient Temperature 25℃B---D---F---G---J--K
Rated Load40℃,rated voltage,1hour△R≤±(3%+0.1Ω)
Short Time Overload5 times rated power for 10s△R≤±(0.2%+0.1Ω)
Dielectric Withstand Voltage2 times Rated Power Voltage +1kv AC 60s (with grounding), leakage current 2.5mA ;
2 times Rated Power Voltage +2kv AC 60s (with grounding), leakage current 2.5mA ;
△R≤±(0.1%+0.05Ω)
Insulation Resistance500V DC≥10GΩ1Min
Terminal Tensile Strength40NNo off
Vibration resistance1.5mm,10-55-10Hz,each 2hoursNo damage,No off
Load Lifeat rated voltage,90 min "On",30 min "Off" ,total 500hours△R≤±(3%+0.1Ω)
Low Temperature Resistance Testingstore at -65℃±3℃ for 2H△R≤±(1%+0.1Ω)
High Temperature Resistance Testing

store at 70 ℃± 2 ℃ for 16h, connect the rated voltage
DC circuit for 1s

△R≤±(1%+0.1Ω)
Non-flammability10 times rated power, power on for 5swithout combustion

Applications:
Widely Widely used in the scope of the application includes:
1.Mixer,fan,and electric tools.
2.Motor controller to control motor speed.
3.Test the instrument to provide data accuracy.
4.Load test,load equipment,speed regulation of industrial machinery,voltage and current regulation, instruments, automatic control devices,etc.


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