Power Oval Edge-Wound High Current Resistors
(DOE)Introduction (DOE)
High current oval edge wirewound resistor (DOE) is the best choice
when conditions demand top-notch performance.
Token DOE Series are commonly used as a dynamic braking resistor on Transit applications. Built to perform in rugged environments, they feature corrosion resistant stainless steel insulator supports, solid nickel terminals, and special electroless nickel-plated solid copper terminal supports.
The resistance element is made of a stainless steel resistance alloy. Terminals are welded or silver brazed to the oval, spiral edge-wound resistance element. Toothed ceramic insulators isolate the resistance element from the center support. Ceramic end bushings insulate the center support from the mountings.
Order individual replacement units or entire grids with various mounting configurations.
Downloads complete PDF version Power Oval Edge Wirewound High Current Resistor (DOE). Contact us with your specific needs.
Options :
- Terminal blocks, thermal switches, conduit knockouts, fusing, fans,
and other customer specified requirements are available on request.
Features :
- Power rating from 525W to 1750W
- Resistance nominal tolerance ±10%(K)
- Resistance value range 0.0426Ω to 6.13Ω,
- suitable for high current applications
Applications :
- Power Industrial Machinery Resistors.
- Dynamic Braking Resistors, Load Banks, Motor Starting Resistor.
- Plugging Resistor, Power Load Measurements, Electric Distribution Resistors.
- Instrumentation, Automation Control Installations.
Oval Edge-Wound Dimensions (DOE 525W - 1750W)
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Power Rating | A | B | ||||||
mm | inch | mm | inch | |||||
525W | 295.3 | 11.375 | 11 5/8 | 244.5 | 9.625 | 9 5/8 | ||
850W | 385.7 | 15.1875 | 15 3/16 | 334.9 | 13.1875 | 13 3/16 | ||
1200W | 469.9 | 18.5 | 18 1/2 | 419.1 | 16.5 | 16 1/2 | ||
1450W | 555.6 | 21.875 | 21 7/8 | 504.8 | 19.875 | 19 7/8 | ||
1750W | 638.2 | 25.125 | 25 1/8 | 587.4 | 23.125 | 231/8 |
Electrical Characteristics (DOE)
Test Item | Specification | Test Methods |
Ambient Temperatures | Ambient Temperature: -55°C ~350°C. Derated current rating: 95% for 50°C ambient, 90% for 75°C ambient, 85% for 100°C ambient, 10% for 350°C ambient. |
Standard ratings are based on maximum ambient temperatures of 40°C. |
Continuous current ratings and temperatures Rise | 375°C Max. | The rating of continuous current is based on a 375°C temperature rise at ambient temperatures of 40°C. |
Resistance tolerance | Resistance Nominal Tolerance ±10%(K) for all units; as low as ±3% if required. |
JIS-C-5202 5-1 |
Thermal Shock | Δ≤±(2%R+0.1Ω) | JIS-C-5202 7.3, Room temp 30 minutes, -55°C 15 minutes. |
Terminal strength | Δ≤±(2%R+0.1Ω) | JIS-C-5202 6.1, 45N, 30S |
Short-term Overload | Δ≤±(2%R+0.1Ω) | JIS-C-5202 5.5, 10PR, 5S. |
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Technical Specification (DOE)
Item | Specification |
Working Voltage | Limited to 550 volts if mounting is grounded. Special higher voltage mounting is available. |
Terminals | Standard terminals have 5/16 stainless hardware for ring lug connections. Brass tags can be placed at connection points for identification. |
Mounting | Resistors can be mounted in grid arrays of 1x2 to 4x4. All resistors in one grid must be the same length. Frames construction is heavy gauge zinc plated steel. |
Oval Edge-Wound Derating Curve (DOE)
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Nominal Current & Resistance Oval Edgewound Resistor (DOE)
525W | 850W | 1200W | 1450W | 1750W | |||||
Amps | Ohms | Amps | Ohms | Amps | Ohms | Amps | Ohms | Amps | Ohms |
- | - | - | - | 146 | 0.055 | - | - | 146 | 0.082 |
- | - | - | - | 135 | 0.0677 | - | - | - | - |
- | - | - | - | 124 | 0.080 | - | - | - | - |
- | - | - | - | 116 | 0.0915 | - | - | 116 | 0.142 |
113 | 0.0426 | 113 | 0.071 | 113 | 0.092 | 113 | 0.121 | 113 | 0.142 |
103 | 0.0497 | 103 | 0.0781 | 103 | 0.107 | 103 | 0.140 | 103 | 0.163 |
- | - | 100 | 0.080 | 100 | 0.122 | - | - | 100 | 0.185 |
94 | 0.0581 | 94 | 0.0913 | 94 | 0.125 | 94 | 0.158 | 94 | 0.191 |
86 | 0.0747 | 86 | 0.116 | 86 | 0.158 | 86 | 0.199 | 86 | 0.241 |
85 | 0.0671 | 85 | 0.116 | 85 | 0.159 | 85 | 0.201 | 85 | 0.244 |
80 | 0.0864 | 80 | 0.134 | 80 | 0.182 | 80 | 0.230 | 80 | 0.278 |
79 | 0.0781 | 79 | 0.135 | 79 | 0.185 | 79 | 0.234 | 79 | 0.284 |
74 | 0.0984 | 74 | 0.156 | 74 | 0.213 | 74 | 0.279 | 74 | 0.336 |
70 | 0.110 | 70 | 0.171 | 70 | 0.232 | 70 | 0.293 | 70 | 0.354 |
69 | 0.115 | 69 | 0.182 | 69 | 0.249 | 69 | 0.326 | 69 | 0.394 |
65 | 0.128 | 65 | 0.199 | 65 | 0.270 | 65 | 0.341 | 65 | 0.412 |
62 | 0.146 | 62 | 0.220 | 62 | 0.305 | 62 | 0.390 | 62 | 0.463 |
61 | 0.148 | 61 | 0.230 | 61 | 0.312 | 61 | 0.394 | 61 | 0.476 |
56 | 0.170 | 56 | 0.270 | 56 | 0.369 | 56 | 0.483 | 56 | 0.568 |
- | - | 54 | 0.269 | 54 | 0.378 | - | - | 54 | 0.573 |
51 | 0.213 | 51 | 0.327 | 51 | 0.440 | 51 | 0.554 | 51 | 0.667 |
47 | 0.249 | 47 | 0.382 | 47 | 0.514 | 47 | 0.647 | 47 | 0.780 |
43 | 0.299 | 43 | 0.465 | 43 | 0.631 | 43 | 0.796 | 43 | 0.963 |
39 | 0.364 | 39 | 0.566 | 39 | 0.768 | 39 | 0.970 | 39 | 1.170 |
35 | 0.465 | 35 | 0.707 | 35 | 0.909 | 35 | 1.190 | 35 | 1.390 |
32 | 0.544 | 32 | 0.846 | 32 | 1.148 | 32 | 1.450 | 32 | 1.750 |
30 | 0.695 | 30 | 1.057 | 30 | 1.360 | 30 | 1.780 | 30 | 2.080 |
26 | 0.860 | 26 | 1.310 | 26 | 1.680 | 26 | 2.210 | 26 | 2.580 |
25 | 1.060 | 25 | 1.620 | 25 | 2.080 | 25 | 2.730 | 25 | 3.190 |
22 | 1.200 | 22 | 1.830 | 22 | 2.450 | 22 | 3.070 | 22 | 3.700 |
18 | 2.040 | 18 | 3.110 | 18 | 3.990 | 18 | 5.240 | 18 | 6.130 |
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Order Codes (DOE)
DOE | 1750W | 1R2 | K | F | |||||||||||||||
1 | 2 | 3 | 4 | 5 | |||||||||||||||
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