过流保护PTC热敏电阻器
价格:电议
地区:广东 深圳市
电 话:86 0755 29411600
传 真:86 0755 61640998

 

MZ2系列PTC热敏电阻器MZ2 SERIES PTC THERMISTOR

 

  用于过流保护For Over-current Protection

 

 

 

产品特点FEATURES

 

MZ2系列PTC是一种自动保护,自动恢复,反复使用,无触点,

 

无噪音,无火花的万次保险器

 

PTC of MZ2 series is a million- time safety device of automatic protection,

 

recoverability, using repeatedly, and no trigger ,noise or sparks.

 

PTC处于常态时,阻值很小,不会影响到变压器初、次级线

 

圈等被保护电路的正常工作。

 

When PTC is in the normal state, the resistance is too low to affect the regular work

 

of the protected circuit such as the voltage transformer’s primary and secondary loops.

 

当电路出现故障时,PTC陡然发热,阻值聚增至高阻态,使电路

 

处于相对断开状态,保护电路。

 

When the circuit is in disorder, the PTC will generate heat suddenly, and the resistance value will go up to the high state,. which can make the circuit in the state of relatively “breaking up” to protect the circuit.

 

 

 

主要应用APPLICATIONS

 

小型变压器初级线圈,充电器、通信设备程控交换机保安单元、雷电浪涌保护电路及线路的过流过载保护

 

Overload and current protection of mini voltage transformer primary loops, chargers, safety guard unit and thunder surging protection circuit of telecom apparatus, and industry-controlling exchangers

 

电能表,数字万用表RS485接口专用的过流保护,数字万用表的过流保护,微电机、晶体管的过流保护

 

Over-current protection of ammeter, digital multi-meterRS485interface, micro-electricity machinery and transistor

 

 

 

一般技术参数GENERAL TECHNICAL DATA

 

 

 

额定工作电压RATED VOLTAGE  

Vn

12V ~ 220 Vrms

工作电压MAX. OPERATING VOLTAGE

Vmax

20V ~ 265 Vrms

耐电压SURGE VOLTAGE WTTHSTANDING

Vs

Vmax×(1.2~1.5

阻值允差(常规)TOLERANCE OF RESISTANCE (TYP.)

ΔRN

±20%M),±25%V

不动作电流NON-TRIP CURRENT

In

10mA~1800mA

动作电流TRIP CURRENT

It

20mA~3600mA

工作电流MAX. OPERATING CURRENT

Imax

0.2A~10.0Arms

恢复时间RESTORE TIME

Tr

60 S(max)

一般开关次数TYPICAL SWITCHING TIMES

N

100

开关温度允差TOLERANCE OF SWITCHING TEMP.

ΔTc

±10℃

工作温度范围OPERATING TEMPERTURE RANGE

TA

 

-25 ~ +125℃(V=0 V)

0~ +60℃(V=Vmax)

储存条件STORAGE CONDITIONS

温度Temperature

相对湿度Relative humidity                        

大气压Atmosphere pressure  

 

-40 ~ +85

95% RH (±40℃)

86 ~ 106 Kpa

 

 

 

"