Thermometrics A-1737 Motor Coil Temperature Sensor is used on a starter generator to provide temperature measurement of the motor coil. Typically mounted on the neutral bar, it detects increases in current that would indicate a failure that could lead to a stall. The sensor can also be used to monitor the motor windings temperature and warn of an over-temperature conditions.
Features
- High accuracy and long term stability
- Existing field proven design
- Weld connections covered by PTFE Heat Shrink
- Meets the temperature and vibration demands of EV and HEV traction motors
- Alternate RvT (resistance versus temperature) curves available
- Custom packages available to meet various motor configurations
- A variety of terminal and connector options
Specifications
| R @ 25°C | 30,000 ohms ±5% |
| R @ 210°C | 155.45 ohms ±11.5% |
| B (25/85) | 3974 |
| Operating Temperature Range | -40°C to 210°C |
| Storage Temperature Range | -40°C to 225°C |
| Temperature Accuracy | 1.53°C at –40°C 1.25°C at 25°C 6.23°C at 210°C |
| Response Time | 7 seconds liquid to liquid |
| Housing Material | Axial leaded glass NTC thermistor |
| Terminal | Molex Terminal 33011-3001 |
| Resistance vs. Temperature Data: | |||
|
Temp (°C) |
Resistance Ω |
± Resistance |
± °C |
| -40 | 965808 | 9.99 | 1.53 |
| 0 | 96255 | 6.51 | 1.30 |
| 20 | 37387 | 5.29 | 1.19 |
| 25 | 30000 | 5.00 | 1.15 |
| 50 | 10850 | 6.42 | 1.68 |
| 80 | 3775 | 7.78 | 2.40 |
| 100 | 2034 | 8.67 | 2.91 |
| 130 | 886.6 | 9.51 | 3.69 |
| 150 | 541.7 | 10.22 | 4.33 |
| 175 | 310.1 | 10.68 | 5.05 |
| 210 | 155.4 | 11.47 | 6.23 |
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