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产品描述

MZ6型PTC热敏电阻专为电动机保护而设计。其关键技术于20世纪90年代从美国引进,至今已有10多年的生产经验。该产品适用于不同的产品,并能为电动机内部的主要部件提供过热保护。例如,PTC热敏电阻嵌入三相电动机定子绕组中。当电动机定子绕组的温度达到绝缘材料的绝缘等级温度时,PTC热敏电阻的阻值会同时上升,并将信号传输到保护器,切断电动机电流,最终防止电动机烧毁。这种方式在世界范围内被广泛应用。


规格

产品名称:三重PTC热敏电阻传感器
R25:≤300Ω
额定动作温度:60-180℃
公差:±5%
应用:电机保护
最大工作电压:30V

Technical Specifications Single PTC Single 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 normal 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
-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
Miniimum Storage temperature T1min -25 -25
Lead Wire Color See the colorful coding below
Weight Wt 2 3.5 G

Color Coding

Dimension

特征

Mz6型电动机保护用PTC热敏电阻符合DN440S1/DIN44S0S>国际标准,
芯片尺寸小(1.5X0.6mm),响应速度快,品种齐全,性能稳定,长期使用可靠,尤其在缺相时能快速响应,保护电动机。

Operating Instruction

The electric motor of different insulation rank selects the different Tk temperature thermistor, itsparameter 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℃

安装注意事项

1. 将导线插入电机的绕线槽内,整理整齐,然后将PTC热敏电阻安装到电机线圈内(如图所示)。2. 安装时,请勿用力敲击或按压热敏电阻的感应区域,以免损坏产品内部精密结构。3. 安装时,请勿用力拉扯产品的引出线,以免将引出线拉断。4. 接线前,请仔细阅读PTC温控模块(原GRB电机过热保护器)的技术资料,以免损坏热敏电阻。5. 将引出线牢固地连接到指定的连接位置。

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