Resistor > High Power Wire Wound Resistors DDR DNR DSR DDVR

High Power Wire Wound Resistors DDR DNR DSR DDVR

This heavy-duty, durable, and low-cost High Power Wire Wound Resistor series is for general purpose applications with load power up to 20kW.

High Power Wire Wound Resistor Applications:
General Power applications – Power Equipment Testing, High Power Circuits, Heating Resistors, Braking Resistors, Snubber Resistors in High Power Snubber Circuits
These are the heavy duty, durable and low-cost resistors for your applications.
DDR-F : High Power Wire Wound Resistors with power from 15W – 20,000W (20kW)
DNR-F : Low Inductance Resistors
DSR-F : Resistance adjustable with a movable ring terminal
DDVR-F : Vitreous Enamel coating type, with power up to 1kW

Precision Resistance Tolerance +/-0.1% +/-0.5% +/-1% +/-5% +/-10%
Suitable for both continuous high power and short time overload dissipation applications
It can customize as High Current Resistors to handle very high loading currents, up to hundreds of amperes.
They can be used as load resistors for load banks.
All resistance values are made according to the customers’ application needs.
Support high current requirement
Support multi-resistances resistor ( Multi Tab Terminals )
Support milli ohm and high resistance ranges
For milli resistance requirements, please state the maximum current and loading duration.
For high resistance value, please state your maximum voltage.
Support Vitreous Enamel coating for harsh conditions applications
Please refer to the Application page for the High Power Resistor application notes.
Prompt Delivery, within 1 – 2 weeks and accept PayPal.

Adjustable Power Resistors
DSR-F
: up to 20kW. Low cost and 7-15 days delivery lead time.
DSR-W
: up to 20kW. Adjusting the resistance values by a hand wheel. 1-3 weeks delivery lead time.
DSR-WB
: Adjustable Load Box with Hand Wheel, Voltmeter, Ammeter, Watt meter, Thermal Protection, Over Current Protection, Main Power Switch and Cooling System. Rated Power can be up to 50kW.
DSR3-WB
(3-phase): Adjustable Load Box with three Hand Wheels, Voltmeters, Ammeters, Watt meters, Ohm meters Thermal Protection, Over Current Protection, Main Power Switch and Cooling System. With Power up to 50kW.
DSR-H
: Power up to 5kW. A hand holder is for resistance adjusting. 1-3 weeks delivery lead time.
Please refer to the Power Rheostat page. There are rheostat application tips, limitations and parameter determination notes on the application page – section C.

MFPR supports High Power Wire Wound Resistors with various  specifications for different applications. Similar circuit designs can have very different resistor electrical and mechanical profile requirements.
Please feel free to send your application details to us for a resistor suggestion and quotation.
Our average production lead time is about 1 – 3 weeks, depending on order quantity, material and production status.
Accept small, bulk quantity orders and PayPal.

DDR-F / DSR-F – Power Wire Wound Resistors
DNR–F – Low Inductance Power Wire Wound Resistors

Power Wire Wound Resistor DDR-F DSR-F drawing

Dimension  mm R A B C H p E G f
Tol +/-mm 1 5 5 1 3 3 1 1 1
15W 15 45 66 15 40 13 6 3.5 4.5
20W 15 50 71 15 40 13 6 3.5 4.5
25W 20 50 80 20 50 15 6 3.5 5
30W 20 70 100 20 50 15 6 3.5 5
40W 20 87 115 20 50 15 6 3.5 5
50W 28 90 122 28 68 20 9 4.5 6
80W 28 90 122 28 68 20 9 4.5 6
100W 28 170 202 28 68 20 9 4.5 6
150W 28 215 247 28 68 20 9 4.5 6
200W 28 267 299 28 68 20 9 4.5 6
250W 28 267 299 28 68 20 9 4.5 6
300W 40 267 305 40 90 20 10 4.5 6
400W 40 330 367 40 90 20 10 4.5 6
500W 50 330 370 50 98 20 10 6 8
600W 50 / 60 330 370 50 98 20 10 6 8
700W 50 400 440 50 98 20 10 6 8
800W 70 300 331 70 135 30 15 8 8
1kW 70 300 331 70 135 30 15 8 8
1500W 70 415 446 70 135 30 15 8 8
2kW 70 510 541 70 135 30 15 8 8
2500W 70 600 631 70 135 30 15 8 8
3kW 70 600 631 70 135 30 15 8 8
4kW 100 430 468 100 185 35 15 8 8
5kW 100 500 538 100 185 35 15 8 8
6kW 100 600 638 100 185 35 15 8 8
10kW 100 / 150 1000 / 600 640 152 260 43 30 8 10
12kW 150 660 700 152 260 43 30 8 10
15kW 150 660 / 750 700 / 850 152 260 43 30 8 10
20kW 150 1000 1040 152 260 43 30 8 10

Resistor sizes might vary depending on the resistance and load current ratings.
Other similar power resistors.