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High Reliability PTC Temperature Sensor Coding Of The Temperature
Through Wire Colours
PTC Thermistor Limiting Temperature Sensor Description: PTC
thermistor, a bushing type for over-temperature protection, is used
for over-temperature detection of windings in motors, coils,
transformers, equipment, machines, etc. Can be used as 1 PTC single
sensor and 3 PTC series triple sensors
Application
◆ Limit temperature monitoring
◆ Electrically actuated motors
◆ Mechanical engineering
◆ Heavy-duty Motors
PTC thermistor temperature sensor features:
·Thermistor chip with insulating package
·Low resistance type, steep R/T curve.
·Small size, fast response.
·Sensing temperature characteristic conforms to DIN 44081 1 PTC
single sensor, DIN 44082 conforms to 3 PTC three sensors in series.
·No need to reset the power supply after switching over
temperature.
· For 1 PTC single sensor, color code the twisted wires according
to DIN 44081. For 3 triple sensors of the PTC series, the twisted
wires are color coded according to DIN 44082, the connecting wires
are yellow.
Structures and Dimensions
Electrical Specifications
| Item | Single PTC | Double PTC | Triple PTC | |
| Max. operating voltage | Vmax | 32V | 32V | 32V |
| Rated response Temp. | TR | 60℃~180℃ | 60℃~180℃ | 60℃~180℃ |
| Tolerance of TR | ±5℃ | ±5℃ | ±5℃ | |
| Reprodcibility of TR | △TR | ±0.5℃ | ±0.5℃ | ±0.5℃ |
| Resistance at 25℃ | R25 | ≤100Ω | ≤200Ω | ≤300Ω |
| Resistance at TR-5℃ | RTR-5 | ≤550Ω | ≤1100Ω | ≤1650Ω |
| Resistance at TR+5℃ | RTR+5 | ≥1330Ω | ≥2660Ω | ≥3990Ω |
| Resistance at TR+15℃ | RTR+15 | ≥4kΩ | ≥8kΩ | ≥12kΩ |
| Thermal response time | ts | ≤5s | ≤5s | ≤5s |
| Insulation test voltage | 2.5kV | 2.5kV | 2.5kV | |
| Max. operating Temp. | 200℃ | 200℃ | 200℃ | |
| Storage Temp. | -25~160℃ | -25~160℃ | -25~160℃ | |
