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[China]
Trade Verify
Address: No.1, Yixiang ,Liwu Industrial Park,Liwuyuan Village,Xihu District, Shilong Town,Dongguan 523325,Guangdong ,China
Contact name:James Lai
Dongguan Ampfort Electronics Co., Ltd. |
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Verified Suppliers
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YM3 Triplet Motor PTC Thermistor PTC Temperature Sensors 80C MZ6-80-DS
PTC thermistor have positive temperature coefficient resistance characteristics. When the temperature reaches its Curie point,Semiconductor ceramic phase change begins, Its resistance value increases rapidly with the temperature increases. Near the control temperature point Tk, Changes are particularly evident. When the ambient temperature is abnormally elevated, Equipped with PTC thermistor through the resistance change, Protect the circuit and turn on or off the circuit, To protect the motor.
- Heavy-duty motors
- electric drives
- mechanical engineering
- Motor Protection
- Transformer Protection Power
- Machinery Protection
• Small dimensions
• Fast response times
• Mechanical stability
• Temperature-resistance-characteristic-curves individually made for the application
• Colour coding
• Wire insulation material or wire cross-section
• Cable end packing
• Connection technology
• UR wire components used High voltage proof insulation (suited for safety class II applications)
• Easily potted next to transformer windings
• Low Cost
• Single or Three Phase
1.MZ6-80-DS Specification
| Name | MZ6 Motor Protection PTC Thermistor |
| Action temperature | 80 ℃ |
| Color of cable | WHITE-WHITE |
| Execution standards | GB/T 7153-2002 Direct thermal step type positive temperature coefficient thermistor Part 1:General specification |
| Dimension and structure | |
| Max DC undamaged voltage | 30V |
| Normal use DC current | Max. 2.5V |
| -20℃~Tk-20℃ | Max. 300 Ohm |
| TK+5℃ | Min. 3990Ohm |
| TK-5℃ | Max. 1650Ohm |
| TK+15℃ | Min. 12KOhm |
| Insulation strength (AC) | 2.5KV/60S |
2.Color Vs Temperature Of PTC Thermistor Sensor
Action Temperature Tk | Color of wire | |
| 60°C | White | Gray |
| 70°C | White | Brown |
| 80°C | White | White |
| 90°C | Green | Green |
| 100°C | Red | Red |
| 105°C | Blue | Gray |
| 110°C | Brown | Brown |
| 115°C | Blue | Green |
| 120°C | Gray | Gray |
| 125°C | Red | Green |
| 130°C | Blue | Blue |
| 135°C | Red | Black |
| 140°C | White | Blue |
| 145°C | White | Black |
| 150°C | Black | Black |
| 155°C | Blue | Black |
| 160°C | Blue | Red |
| 165°C | Blue | Brown |
| 170°C | White | Green |
| 180°C | White | Red |
3.Technical Specifications
| Technical Specifications | Single PTC | Triple PTC | Units | |
| Max working voltage | Umax | 30 | 30 | V |
| Normal using voltage | V | Max 2.5 | Max 2.5 | V |
| Rated action temperature | Tk | 60~180 | 60~180 | ℃ |
| Tk tolerance | ±5 | ±5 | ℃ | |
| Tk repeatability | T | ±0.5 | ±0.5 | ℃ |
Resistance in norm al temperature T=25±1℃(V Max2.5V) | R25 | Max 100 | Max 300 | Ohm |
PTC resistance at some temperature(V Max2.5V) | TK-5℃ | Max550 | Max 1650 | Ohm |
PTC resistance at some temperature(V Max2.5V) | Tk+5℃ | min. 1330 | min. 3990 | Ohm |
PTC resistance at some temperature(V Max2.5V) | Tk+15℃ | min. 4 | min. 12 | KOhm |
| -20℃~Tk-20℃ | Max 250 | Max750 | Ohm | |
| Tk reaction time | Td | less than 5 | less than 5 | S |
| Insulation strength | V | 2.5 | 2.5 | KV |
| Maximum storage temperature | T1max | 125 | 125 | ℃ |
| Minimum storage temperature | T1min | -25 | -25 | ℃ |
| Lead wire color | See the colorful coding below | |||
| Weight | Wt | 2 | 3.5 | g |
4.PTC Characteristic Curve
5.Operating Instruction
The electric motor of different insulation rank selects the different Tk temperature thermistor, its parameter is shown at following table(only reference).
| Electric motor insulation rank | Limited Working Temperature | Thermistor(TK) |
| Y | 90 | 80~85℃ |
| A | 105 | 95~100℃ |
| E | 120 | 110~115℃ |
| B | 130 | 120~125℃ |
| F | 155 | 145~150℃ |
| H | 180 | 170~175℃ |
| C | Above 180 | Above 180 |
6.Note for mounting
1.Insert wire in the winding wire slot of the motor,make it tidy, and then mount the PTC thermistor in the coil of motor(as shown in figure).
2.White mounting,do not hard beat or press the sensing area of the thermistor for fear that the internal precise structure of the product might be damaged.
3. While mounting,do not extremely hard pull the outgoing line of the product for fear that the outgoing line might be pulled apart.
4.Before connecting,read the technical information about PTC temperature control module(the former GRB motor overheat protector) for fear that the thermistor might be damaged.
5.Securely connect the outgoing line in the specified connection position.
7.Error and Measure
| Breakdown | Reason | Measure |
| Resistance value is too high(measure resistance of the outgoing line by Ohm band of an AVO meter,the resistance value of a single line is higher than 100 Ohm at 25℃) | 1. The lead of the thermistor opened a way or was in a bad contact. 2. The thermistor was damaged. | 1.Check the lead of the thermistor whether open or not,or in the bad contact 2.Replace the themistor |
| Resistance value is too high(measure resistance of the outgoing line by Ohm band of an AVO meter,the resistance value of a single line is higher than 20 Ohm at 25℃) | 1.The lead of thermistor was in short circuit; 2.The thermistor was damaged
| Check the lead of the thermistor is in short circuit or not,and connect it. 2,Replace the thermistor
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| Sometimes be Normal,Sometimes be abormal, | 1.The lead of thermistor was in in bad contact; 2.The thermistor was damaged
| Connect the lead of the thermistor and the binding post tightly. 2.Replace the thermistor |
