Active Member
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[China]
Address: Yikang business building 11128#, Huarong Road 33#, Dalang Street, Longhua District, Shenzhen 518109, Guangdong, China
Contact name:Bin
Shenzhen Zenithsun Electronics Tech.CO.,LTD |
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100Watt Ceramic Tray Variable Power Wire Wound Rheostats ,Painted Coating
Structure :
1.A rheostat is a variable resistor which is used to control
current. They are able to vary the resistance in a circuit without
interruption. The construction is very similar to the construction
of potentiometers.
2.ZENITHSUN 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.
5.The product range covers a wide field, from flat,round- and wire
wound resistors
6.Dimensions for reference ,consult us for more details.
Features:
1.Variable resistors are often called varistors or
potentiometers.Variable BCI may used as a rheostat with two
connections(the wiper and just one end of the track )or as a
potentiometer with all three connections in use.
2.On one resistor ,can have the different resistance
requirement(flat and round wire can be in same rheostat).
3.High power rating,resistance to humidity, resistance value in
great adjustable range.
4.Motor controller also use BCI series as rheostat or potentiometer
to control the speed of a by limiting the flow of current through
them.
5.While dedicated preset resistors with 2 terminals exist,the
3-terminal trimmer potentiometer is more common and is often used
by wiring it as a rheostat.
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 ; 2 times Rated Power Voltage +2kv AC 60s (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 | △R≤±(1%+0.1Ω) |
| Non-flammability | 10 times rated power, power on for 5s | without 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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