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Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection
Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection
Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection
Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection
Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection
Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection
Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection
Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection
Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection
Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection
Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection
Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection
Specifications
Brand Name :
AMPFORT
Model Number :
MZ6-120-DS
Certification :
ROHS
Place of Origin :
Dongguan,Guangdong,China
MOQ :
1000PCS
Price :
2~3 USD/PC
Payment Terms :
T/T, Western Union
Supply Ability :
10KKPCS Per month
Delivery Time :
10 workdays
Packaging Details :
Bulk
Name :
PTC Thermistor Motor Protection
At -20℃ to TK-20℃ :
R≤0.25kΩ
At TK-5℃ :
R≤0.55kΩ
At TK+5℃ :
R≥1.33kΩ
At TK+15℃ :
R≥4kΩ
Max working voltage :
30V
Rated action temperature :
120℃
Unit weight :
3.5g
Description

Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection

- Basic information Of The PTC Thermistor Motor Protection


PTC thermistors are ceramic semi-conductors which because of the very high Positive Temperature Coefficient lend themselves to a variety of applications.

- Applications Of The PTC Thermistor Motor Protection


Specially constructed versions of these products are available and this facility enables most applications to be catered for. Most typical application for PTC thermistors is to protect the windings of heavy duty motors and transformers.

- General function Of The PTC Thermistor Motor Protection


The PTC thermistor, for the thermal protection of electrical machines, is a temperature dependent component. The rated operating temperature (ROT) corresponds to the curie point temperature of the ceramic. The resistance, of the PTC thermistor, rises very steeply with relatively small increases in temperature, thus triggering the switching function.

- Advantages Of The PTC Thermistor Motor Protection


• Precise repeatability of the response point.
• Long hysteresis free switch cycle life.
• Extremely cost effective.
• Steep temperature-resistance curve characteristic allows for simple evaluation electronics.
• Current self-limiting.
• Light weight.
• Low thermal time constant.
• Extremely small designs are available.

- Technical Specifications Of The PTC Thermistor Motor Protection

Technical Specifications Single PTC Triple PTC Units
Max working voltage Umax 30 30 V
Normal using voltage V ≤2.5 ≤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≤2.5V)

 R25 ≤100 ≤300 Ω

PTC resistance at some

temperature(V≤2.5V)

 TK-5℃ ≤550 ≤1650 Ω

PTC resistance at some

temperature(V≤2.5V)

 Tk+5℃ ≥1330 ≥3990 Ω

PTC resistance at some

temperature(V≤2.5V)

 Tk+15℃ ≥4 ≥12 KΩ
-20℃~Tk-20℃ ≤250 ≤750 Ω
Tk reaction time Td <5 <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

- Operating Instruction Of The PTC Thermistor Motor Protection


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

- Note for mounting Of The PTC Thermistor Motor Protection


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.

Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection

- 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 100Ω 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 20Ω 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
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

Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection

Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor ProtectionPrecise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor ProtectionPrecise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor ProtectionPrecise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor ProtectionPrecise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection

Product tags

ptc thermistor motor protection

,

motor ptc thermistor

,

thermistor motor protection
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Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection

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Product Detail
Brand Name :
AMPFORT
Model Number :
MZ6-120-DS
Certification :
ROHS
Place of Origin :
Dongguan,Guangdong,China
MOQ :
1000PCS
Price :
2~3 USD/PC
Contact Supplier
video
Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection
Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection
Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection
Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection
Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection
Precise Repeatability 91-KD3x5 MZ6-120-DS Triple PTC Thermistor Motor Protection

Dongguan Ampfort Electronics Co., Ltd.

Verified Supplier
4 Years
guangdong, dongguan
Since 2014
Business Type :
Manufacturer, Distributor/Wholesaler, Agent, Exporter
Main Products :
Power NTC Thermistor, PTC Thermistor, Thermistor Temperature Sensors
Total Annual :
1850000-2340000
Employee Number :
51~200
Certification Level :
Verified Supplier
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