POWER RESISTORS

Round Wire Wound Power Resistors

DR

Providing design engineers An economical power resistor with high quality performance.


Power Round Wire Wound Resistors - DR Series

Resistance Tolerance:

  • K(±10%), J(±5%)

DR＊N Non-Inductive:

  • Ayrton Perry type non-inductive winding is available.
    When required add "N" to the part number.

Tokenchiina designed wirewound in both Round Wire and Non-inductive formats, these rugged resistors can handle 10W to 20000W Watts of power. Specify our wirewound design for very low resistance and high power capacity. When higher resistance with lower power capacity is required use our Round Wire design.


The DR construction consists of heavy resistance alloy wound around ceramic insulators supported by a metal mounting bar. The bar is slotted on each end to facilitate installation. Terminal bands are spot welded after installation on the core and resistance-alloy wire is precisely wound onto the core. Standard lug terminals available with or without terminal hardware. Single and double quick connect terminals can be specified.


Tokenchina's DR series is suitable for educational modeling applications, load testing, industrial machinery, electric power distribution, instruments, and automation control installations. Industry standard size allows for easy drop-in replacement of other brands including Milwaukee, Ohmite and Post Glover.


The power DR series is lead-free and RoHS compliant. Please contact us for details with your specific needs.

DR-A Power-Wirewound 10W ~ 1300W

dr_1_power_wirewound_resistor.jpg dr_2_power_wirewound_resistor.jpg
dr_2_power_wirewound_resistor.jpg
Wattage
Rating		 Dimensions (mm) Resistance
Range
A B C D E F G H I J K L M N O
10W 45 12 6 15 4 54 2 9 3 62 28 1.0 - 6 10 1~3KΩ
20W 60 17 8 22 5 78 2 12 4 90 36 1.0 - 6 16 1~7KΩ
30W 80 17 8 22 5 100 2 12 4 112 36 1.0 - 6 16 1~10KΩ
40W 110 17 8 22 5 128 2 12 4 140 36 1.0 - 6 16 1~13KΩ
50W 110 25 16 30 8 150 5 18 6 166 58 1.2 6 - 27 0.1~25KΩ
60W 90 28 18 32 8 130 5 19 6 146 60 1.2 6 - 27 0.1~30KΩ
80W 110 28 18 32 8 150 5 19 6 166 60 1.2 6 - 27 0.1~40KΩ
100W 140 28 18 32 8 180 5 19 6 196 60 1.2 6 - 27 0.1~50KΩ
120W 160 28 18 32 8 200 5 19 6 216 60 1.2 6 - 27 0.1~60KΩ
150W 195 28 18 32 8 235 5 19 6 251 60 1.2 6 - 27 0.3~75KΩ
160W 185 35 24 36 10 225 5 19 8 245 76 1.6 6 - 34 0.3~80KΩ
200W 210 35 24 36 10 250 5 19 8 274 76 1.6 6 - 34 0.3~100KΩ
250W 210 40 25 38 12 250 5 20 8 274 78 1.6 6 - 34 0.5~125KΩ
300W 260 40 25 38 12 300 5 20 8 320 78 1.6 6 - 34 0.5~150KΩ
400W 330 40 25 38 12 370 5 20 8 395 78 1.6 6 - 34 0.5~200KΩ
500W 330 50 35 50 12 380 6 25 9 400 100 1.6 8 - 40 0.5~250KΩ
600W 400 50 35 50 12 450 6 25 9 470 100 1.6 8 - 40 0.8~300KΩ
700W 460 50 35 50 12 510 6 25 9 530 100 1.6 8 - 40 0.8~350KΩ
800W 460 60 40 55 15 515 6 30 10 535 110 1.6 10 - 50 0.8~400KΩ
1000W 540 60 40 55 15 595 6 30 10 615 110 1.6 10 - 50 1~500KΩ
1300W 650 65 42 62 15 702 6 30 10 722 115 1.6 10 - 50 1~750KΩ

DR-B Power-Wirewound 15W ~ 20000W

ddrb_1_power_wirewound_resistor.jpg ddrb_2_power_wirewound_resistor.jpg
ddrb_3_power_wirewound_resistor.jpg
Wattage
Rating		 Dimensions (mm) Resistance
Range
R L1 L2 L3 H N d M q Q
15W 15 45 65 85 40 6 3.5 3.5 4.5 15 1~1KΩ
20W 15 50 70 90 40 6 3.5 3.5 4.5 15 1~1KΩ
25W 20 50 80 100 50 6 3.5 5 5 20 2~1KΩ
30W 20 70 100 120 50 6 3.5 5 5 20 2~1KΩ
40W 20 87 115 137 50 6 3.5 5 5 20 2~1KΩ
50W 28 90 115 143 68 9 4.5 5.5 6 27 5~1KΩ
80W 28 90 115 143 68 9 4.5 5.5 6 27 5~2KΩ
100W 28 170 195 223 68 9 4.5 5.5 6 27 10~3KΩ
150W 28 215 240 268 68 9 4.5 5.5 6 27 10~3KΩ
200W 28 267 292 320 68 9 4.5 5.5 6 27 10~5KΩ
250W 28 267 292 320 68 9 4.5 5.5 6 27 10~5KΩ
300W 40 267 300 343 90 10 4.5 6 6 39 20~5KΩ
400W 40 330 365 406 90 10 4.5 6 6 39 20~5KΩ
500W 50 330 365 415 98 10 6 8.5 8 49 20~5KΩ
600W 50 330 365 415 98 10 6 8.5 8 49 20~5KΩ
700W 50 400 435 485 95 10 6 8.5 8 49 20~5KΩ
800W 70 300 320 362 138 15 8 - 8 69 40~500Ω
1000W 70 300 320 362 138 15 8 - 8 69 40~500Ω
1500W 70 415 435 477 138 15 8 - 8 69 40~500Ω
2000W 70 510 530 572 138 15 8 - 8 69 40~500Ω
2500W 70 600 620 662 138 15 8 - 8 69 40~500Ω
3000W 70 600 620 662 138 15 8 - 8 69 40~500Ω
4000W 100 430 450 521 185 15 8 - 8 99 40~500Ω
5000W 100 500 620 691 185 15 8 - 8 99 40~500Ω
6000W 100 600 720 791 185 15 8 - 8 99 40~500Ω
10000W 150 600 625 720 350 30 8 - 10 150 40~500Ω
12000W 150 660 685 780 350 30 8 - 10 150 40~500Ω
15000W 150 660 685 780 350 30 8 - 10 150 40~500Ω
20000W 150 1000 1030 1120 350 30 8 - 10 150 40~500Ω

DR-AN Power-Non-Inductance 50W ~ 1300W

dr_1_power_wirewound_resistor.jpg dr_3_power_wirewound_resistor.jpg
Wattage
Rating		 Dimensions (mm) Resistance
Range
A B C D E F G H I J K L M O
50W 110 25 16 30 8 150 5 18 6 166 58 1.2 6 27 0.1~10KΩ
60W 90 28 18 32 8 130 5 19 6 146 60 1.2 6 27 0.1~12KΩ
80W 110 28 18 32 8 150 5 19 6 166 60 1.2 6 27 0.1~16KΩ
100W 140 28 18 32 8 180 5 19 6 196 60 1.2 6 27 0.1~20KΩ
120W 160 28 18 32 8 200 5 19 6 216 60 1.2 6 27 0.1~24KΩ
150W 195 28 18 32 8 235 5 19 6 251 60 1.2 6 27 0.3~3KΩ
160W 185 35 24 36 10 225 5 19 8 245 76 1.6 6 34 0.3~35KΩ
200W 210 35 24 36 10 250 5 19 8 274 76 1.6 6 34 0.3~40KΩ
250W 210 40 25 38 12 250 5 20 8 274 78 1.6 6 34 0.5~50KΩ
300W 260 40 25 38 12 300 5 20 8 320 78 1.6 6 34 0.5~60KΩ
400W 330 40 25 38 12 370 5 20 8 395 78 1.6 6 34 0.5~80KΩ
500W 330 50 35 50 12 380 6 25 9 400 100 1.6 8 40 0.5~100KΩ
600W 400 50 35 50 12 450 6 25 9 470 100 1.6 8 40 0.8~120KΩ
700W 460 50 35 50 12 510 6 25 9 530 100 1.6 8 40 0.8~140KΩ
800W 460 60 40 55 15 515 6 30 10 535 110 1.6 10 50 0.8~160KΩ
1000W 540 60 40 55 15 595 6 30 10 615 110 1.6 10 50 1~200KΩ
1300W 650 65 42 62 15 702 6 30 10 722 115 1.6 10 50 1~260KΩ

DR-BN Power-Non-Inductance 15W ~ 20000W

ddrb_1_power_wirewound_resistor.jpg ddrb_2_power_wirewound_resistor.jpg
ddrb_3_power_wirewound_resistor.jpg
Wattage
Rating		 Dimensions (mm) Resistance
Range
R L1 L2 L3 H N d M q Q
15W 15 45 65 85 40 6 3.5 3.5 4.5 15 1~1KΩ
20W 15 50 70 90 40 6 3.5 3.5 4.5 15 1~1KΩ
25W 20 50 80 100 50 6 3.5 5 5 20 2~1KΩ
30W 20 70 100 120 50 6 3.5 5 5 20 2~1KΩ
40W 20 87 115 137 50 6 3.5 5 5 20 2~1KΩ
50W 28 90 115 143 68 9 4.5 5.5 6 27 5~1KΩ
80W 28 90 115 143 68 9 4.5 5.5 6 27 5~2KΩ
100W 28 170 195 223 68 9 4.5 5.5 6 27 10~3KΩ
150W 28 215 240 268 68 9 4.5 5.5 6 27 10~3KΩ
200W 28 267 292 320 68 9 4.5 5.5 6 27 10~5KΩ
250W 28 267 292 320 68 9 4.5 5.5 6 27 10~5KΩ
300W 40 267 300 343 90 10 4.5 6 6 39 20~5KΩ
400W 40 330 365 406 90 10 4.5 6 6 39 20~5KΩ
500W 50 330 365 415 98 10 6 8.5 8 49 20~5KΩ
600W 50 330 365 415 98 10 6 8.5 8 49 20~5KΩ
700W 50 400 435 485 95 10 6 8.5 8 49 20~5KΩ
800W 70 300 320 362 138 15 8 - 8 69 40~500Ω
1000W 70 300 320 362 138 15 8 - 8 69 40~500Ω
1500W 70 415 435 477 138 15 8 - 8 69 40~500Ω
2000W 70 510 530 572 138 15 8 - 8 69 40~500Ω
2500W 70 600 620 662 138 15 8 - 8 69 40~500Ω
3000W 70 600 620 662 138 15 8 - 8 69 40~500Ω
4000W 100 430 450 521 185 15 8 - 8 99 40~500Ω
5000W 100 500 620 691 185 15 8 - 8 99 40~500Ω
6000W 100 600 720 791 185 15 8 - 8 99 40~500Ω
10000W 150 600 625 720 350 30 8 - 10 150 40~500Ω
12000W 150 660 685 780 350 30 8 - 10 150 40~500Ω
15000W 150 660 685 780 350 30 8 - 10 150 40~500Ω
20000W 150 1000 1030 1120 350 30 8 - 10 150 40~500Ω

Specifications - Power-Wirewound DR & Power-Non-Inductance DR＊N

Test Item Test Methods Characterstics
Load life JIS-C-5202 7-10
90 minutes ON - 30 minutes OFF500 hours		 Free of appearance or structural irregularity Surface coating crack ΔR/R≤ ±(1%+0.05Ω)
Load rating JIS-C-5202 5-4 ΔR/R≤±(0.5%+0.1Ω) Surface temperature up 350°C MAX
Humidity JIS-C-5202 7-5
40°C 90%RH 240 hours 		Free of appearance or structural irregularity Surface coating crack ΔR/R≤ ±(3%+0.1Ω)
Vibration JIS-C-5202 6-3
1.5m/m 10 ~ 50 ~ 10 Hz/min X-Y-Z 2 hours each 		Free of appearance or structural irregularity Surface coating crack ΔR/R≤ ±(1%+0.05Ω)
Thermal shock JIS-C-5202 7-3
Room temp 30 minutes ON-55°C 15 minutes OFF		 Free of structural irregularity ΔR/R≤ ±(2%+0.1Ω)
Terminal strength JIS-C-5202 6-1 8kg 30 seconds Free of appearance or structural irregularity
Flame retardation JIS-C-5202 7-13-3-2
100% - 600% rated wattage load		 US UL-94 flame retardation test V-0 grade noncombustible
Resistance tolerance JIS-C-5202 5-1 Resistance Nominal Tolerance
1≤R 1>R ±5%(J) ±10%(K)
Short-term overload JIS-C-5202 5-5
1000% rated wattage 5 seconds 		Free of appearance or structural irregularity
ΔR/R≤ ±(2%+0.1Ω)
Insulation resistance JIS-C-5202 5-6 500VDC 100MΩ min
Temperature coefficient JIS-C-5202 5-2 ±200PPM/°C MAX
Dielectric withstanding voltage JIS-C-5202 5-7
1000VDC 1 minute Between terminal and anchor stand		 Free of appearance or structural irregularity
ΔR/R≤ ±(0.1%+0.05Ω)
REMARKS: 1. Resistance and resistance tolerance were tested in-house with micro resistance meter.
2. Coating refers to UL-certified data provided by supplier.

How to Order - Power-Wirewound DR & Power-Non-Inductance DR＊N

DNRA 600W 500R J G
Product Type
DRA
DRB
DRAN
DRBN
Rated Wattage
10W~1300W
15W~20000W
50W~1300W
15W~20000W
Resistance value (Ω)
R5000.500 Ω
1R001 Ω
250R250 Ω
1K001,000 Ω
25K025,000 Ω
25K525,500 Ω
Resistance tolerance
J±5%
K±10%
Assembly Method
CClip Mount.
GHorizontal Mount.
NNo Mount.
ZVertical Mount.

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DR ¤ Series - Round Wire Wound Power Resistors

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