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| Categories | Variable Power Resistor | 
|---|---|
| Brand Name: | ZENITHSUN | 
| Model Number: | DSBY3 | 
| Certification: | RoHs | 
| Place of Origin: | Shenzhen,China | 
| MOQ: | 10pcs | 
| Price: | USD2.00-USD50.00 | 
| 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: | 15W-20KW | 
| Resistance: | 0.1Ω - 100KΩ | 
| Tolerance: | ±1%,±5%,±10% | 
| Colour: | Green | 
| Type: | Adjustable with moving terminal | 
| Moving terminal: | available | 
Vitreous Enamel Ceramic Tube Wirewound Power Variable Resistors
Structure :
1.The resistor wire is made of iron chromium aluminum, nickel
chromium wire or constantan wire ,with high temperature resistance,
stable electrical performance and low temperature drift coefficient
.
2.Ceramic Tube(aluminum content 75) used as the winding matrix,
with high heat dissipation.
3.Surface Colour :enamel green.
4.Non-inductive & variable type on requests;
5.Working voltage and Nominal resistance value are related to Ohm’s
law.
Features:
1.Fixed type or Variable type are available.
2.The surface layer is enamel,with firm structure,strong pollution
resistance,chemical gas erosion resistance,high insulation,moisture
resistance & high temperature resistance,used in harsh
environments.
3.High power,shock resistance,fast heat dissipation,high
stability,long life & good moisture resistance.
4.Taps/Termianls leading out for bolts/wire connection.
5.Support precision resistance tolerance requirement.
Specification:
| Performance Charactertics | ||
| Test | Conditions of Test | Testing Results | 
| Resistance Tolerance | Testing Voltage ≤3V,Ambient Temperature 25℃ | B---D---F---G---J--K | 
| Rated Load | 40℃,rated voltage,1hour | △R≤±(3%+0.1Ω) | 
| Short Time Overload | 5 times rated power for 10s | △R≤±(0.2%+0.1Ω) | 
| Dielectric Withstand Voltage | 2 times Rated Power Voltage +1kv AC 60s (with grounding), leakage current 2.5mA ; (with grounding), leakage current 2.5mA ; | △R≤±(0.1%+0.05Ω) | 
| Insulation Resistance | 500V DC | ≥10GΩ1Min | 
| Terminal Tensile Strength | 40N | No off | 
| Vibration resistance | 1.5mm,10-55-10Hz,each 2hours | No damage,No off | 
| Load Life | at rated voltage,90 min "On",30 min "Off" ,total 500hours | △R≤±(3%+0.1Ω) | 
| Low Temperature Resistance Testing | store 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-flammability | 10 times rated power, power on for 5s | without combustion | 
Applications:
Widely used in frequency converter,elevator,hoisting,ship,electric power,welding,power supply,military industry,aviation,wind power generation,solar power generation,generator test load,automation equipment,railway system and other industries .
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