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DDR 30W-20kW Wire-Wound Resistor Assembling
Product Name: wire-wound resistor / brake resistor / high power resistor / break resistor;
Power range: 20W-20kW;
Resistance range: 0.1Ω~100kΩ;
Tolerance range: ±0.5%~±10%;
Working Temp. range: - 55℃~ + 275℃;
Features: high power, fast heat dissipation, anti-vibrative, anti-impact, high stable, long service life.
Application: braking, pre-charge, testing, starting, dis-charge, etc
Application: inverter, elevator, crane, CNC and other industrial automation fields.E-mail: sales@zsa-one.com sales06@zsa-one.com
● Features & Structure | |
1. Product features: 1) High power, fast heat dissipation, impact resistance, high stability, high mechanical strength. 2) It has strong impact resistance, can brake frequently and instantaneously, and can load for a long time. The resistance value will not change too much, and the product consistency is high. 2. Product structure: 1) The high temperature resistant mullite ceramic tube is used as the resistance matrix, the high-quality alloy wire is evenly wound, and the outside is coated with non combustible insulating heat dissipation oil Paint to protect, so that the resistance has a better appearance and heat dissipation effect, after natural drying, baking at different temperatures before assembly. 2) Different installation methods can be made according to customers' needs. One resistor can achieve multiple resistance values, and can be made into non inductive or adjustable mode. 3) Because of the flexible installation method, it is often used to assemble high-power resistance box or resistance cabinet, which is an ideal electronic component for load test. 4) It can be made according to customers' requirements. 3. Application fields: Inverter, servo motor, servo driver, power load, elevator, lifting, medium frequency furnace, electric furnace, induction heating equipment industry, new energy vehicle manufacturing, wind power pitch system, wind power electronic control system and converter, solar photovoltaic inverter industry, small and medium-sized wind turbine (including grid connected / off grid type), medical equipment Machinery industry (such as paper machine), communication industry, rail transit, railway locomotive, aviation, shipping, military industry units, welding equipment, environmental protection equipment, power system, fan load, mining equipment, transformer, CNC machine tool, reactive power compensation device, laser industry, State Grid, engineering supporting, universities and Design Institutes......
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● Technical Parameters |
Test condition |
Specifications |
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Resistance tolerance |
JIS-C-5202 5-1 |
Resistance Nominal Tolerance 1≤R 1>R ±5%(J) ±10%(K) |
Temperature coefficient |
JIS-C-5202 5-2 |
±350PPM/℃ Max |
Power rating load |
JIS-C-5202 5-4 40℃,power rating 1H |
△R≤±(1%+0.1Ω)Surface temperature up ≤350℃ MAX |
Short-term overload |
JIS-C-5202 5-5, 1000% rated power 5 seconds |
Free or appearance or structural irregularity △R≤±(2%+0.1Ω) |
Insulation resistance |
JIS-C-5202 5-6 1000V DC |
100 MΩ Min |
Dielectric withstanding voltage |
JIS-C-5202 5-7, 2000V DC 1 minute |
Free or appearance or structural irregularity △R/R≤±(0.1%+0.05Ω) |
Terminal strength |
JIS-C-5202 6-1 ASZ 8kg 30s, ASCB / ASC 5kg 10s |
Free of appearance or structural irregularity |
Vibration |
JIS-C-5202 6-3 1.5mm,10-50-10Hz/min X-Y-Z 2 hours each |
Free or appearance or structural irregularity |
Thermal shock |
JIS-C-5202 7-3 Room temp 30 minutes |
Resistor free of structural irregularity crack |
Humidity |
JIS-C-5202 7-5, 40℃ 90%RH 240H |
Free or appearance or structural irregularity |
Load life |
JIS-C-5202 7-10, 90Min ON-30Minutes OFF 500H |
Free of appearance or structural irregularity |