The choice when conditions demand top-notch performance, these resistors are commonly used for dynamic braking on Transit applications. Choose from five sizes with up to thirty-one current ratings. 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 edgewound 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. Contact us with your specific needs. |
| DOE Type 550W - 3250W Standard Electrical Specification |
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| Power Rating | A (mm) | B (mm) | Resistance Value Range |
| 550W | 244.5 | 295 | 0R2~2R |
| 900W | 335 | 385.5 | |
| 1200W | 419 | 470 | |
| 1500W | 505 | 556 | |
| 1800W | 588 | 638 | |
| 3250W | 410 | 465 | |
| Performance Specification |
| TEST ITEM | TEST METHODS | CHARACTERISTICS |
| Resistance tolerance | JIS-C-5202 5-1 | Resistance Nominal Tolerance ±10%(K) |
| Temperature coefficient | JIS-C-5202 5-2 | ±300ppm/°C max. |
| Power rating load | JIS-C-5202 5-4 | R/R ≤ ±(1%+0.1Ω) Surface temperature up 350°C max. |
| Dielectric withstanding voltage | JIS-C-5202 5-7 2000VDC 1 minute Between terminal and anchor stand |
Free of appearance or structural irregularity ΔR/R ≤ ±(1%+0.1Ω) |
| Terminal strength | JIS-C-5202 6-1 500N 30 seconds | Free of appearance or structural irregularity |
| Insulation resistance | JIS-C-5202 5-6 500VDC | 100MΩ min |
| Short-term overload | JIS-C-5202 5-5 1000% rated power 5 seconds |
Free of appearance or structural irregularity ΔR/R ≤ ±(2%+0.1Ω) |
| Vibration | JIS-C-5202 6-3 490m/s2 11ms |
Free of appearance or structural irregularity Surface coating crack ΔR/R ≤ ±(2%+0.1Ω) |
| Remarks | Resistance and resistance tolerance were tested in-house with micro resistance meter. | |
| How to Order |
| DOE | 1500W | 1R3 | K | F | |||||||||||||||
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