Steel Tube Resistor Box is mainly assembled by electrically heated tube resistors, suitable for high-power, high-current braking equipment, rail transportation, new energy, laboratory testing equipment, elevators, cranes and other energy dissipation braking circuit of invertors.
Product Features
1. Rated power range: 1KW-10KW
2. Rated voltage range: ≤1.2KV
3. Resistance range: 2R-1KR
4. Dielectric strength: AC2.5KV 50Hz/5s
5. IP Protection: IP20
6. Vibration: 0.5g
7. Temperature coefficient: ≤400ppm/°C
8. Element material: 0Cr25Al5
9. Advantages: applicable to relatively harsh environment
Product Size
| Type | Rated power(KW) | D | W | H | D1 | D2 | W1 | H1 | OB | Resistor range | Cable (mm2) | Braking power in different braking time of each 120s(braking period) | |||
| 12s | 24s | 36s | 48s | ||||||||||||
| RTRB | 1.5 | 475 | 250 | 90 | 440 | 420 | 200 | 80 | 7×14 | 3Ω-500Ω | 4 | 17KW | 8KW | 5KW | 4KW |
| 3 | 475 | 250 | 125 | 440 | 420 | 200 | 115 | 7×14 | 3Ω-500Ω | 4 | 33KW | 15KW | 10KW | 8KW | |
| 4.5 | 475 | 250 | 160 | 440 | 420 | 200 | 150 | 7×14 | 3Ω-500Ω | 4 | 50KW | 23KW | 15KW | 12KW | |
| 6 | 475 | 250 | 195 | 440 | 420 | 200 | 185 | 7×14 | 2Ω-1KΩ | 6 | 66KW | 30KW | 20KW | 15KW | |
| 8 | 475 | 250 | 230 | 440 | 420 | 200 | 220 | 7×14 | 2Ω-1KΩ | 6 | 77KW | 39KW | 26KW | 20KW | |
| 10 | 475 | 250 | 265 | 440 | 420 | 200 | 255 | 7×14 | 2Ω-1KΩ | 10 | 97KW | 49KW | 33KW | 24KW | |
Mechanical and Electrical Properties
| Property | Inspection method | Performance requirements | Test method |
| Constant humidity-heat | 96hTemperature 40 °C , RH(90-95)% 96h | R≤±(5%±0.05Ω) | GB5729.2.24 |
| Temperature change | -55 ° C to +55 °C , 3 Cycles | R≤±(2%±0.05Ω) | GB5729.4.19 |
| Transient overload | 10 Pr 5S 10 Time Pr 5s | No visible destruction R≤±(1%±0.05Ω) | GB5729.4.13 |
| Insulation resistance | DC 1000V | R≥100MΩ | GB5729.4.6 |
| Dielectric strength | AC3000V 50Hz 5s | Free of breakage or flying arc | GB5729.4.7 |
| Life | 25 ° C Ur 1000h | R≤20% | |
| Terminal strength | 45N 30S | Free of visible destruction | GB5729.4.16 |
| Vibration resistance | f:5-200HZ a=1g X.Y.Z every 2h | R≤±(1%R+0.05Ω)Free of visible destruction | GB5729.4.22 |
Surface Temperature Increase
Resistor Overload Capability
Resistor Overload Capability
Product Identification Code
| RTRB | 2K00 | 0032 | 9999M | K | |
| Product Type | Rated Power 50W-2000W 0020-20W 2K00-2KW | Resistance Value(ohm)(Ω)indicates resistance value in units of ohms 0R08-0.08Ω/ 0032-32Ω/1K00-1KΩ | Connection M= Terminal | Resistance Tolerance H=±3% K=±10% J=±5% | |
| User name | Member Level | Quantity | Specification | Purchase Date |
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