MZ2系列PTC熱敏電阻器MZ2 SERI PTC THERMISTOR
用于過(guò)流保護(hù)For Over-current Proteion
產(chǎn)品特點(diǎn)FEATUR
MZ2系列PTC是一種自動(dòng)保護(hù)，自動(dòng)恢復(fù)，反復(fù)使用，無(wú)觸點(diǎn)，
無(wú)噪音，無(wú)火花的“萬(wàn)次保險(xiǎn)器”。
PTC of MZ2 seri is a million- time safety device of automatic proteion,
recoverability, using repeatedly, and trigger ,ise or sparks.
當(dāng)PTC處于常態(tài)時(shí)，阻值很小，不會(huì)影響到變壓器初、次級(jí)線
圈等被保護(hù)電路的正常工作。
When PTC is in the rmal state, the ristance is too low to affe the regular work
of the proteed circuit such as the voltage transformer’s primary and secondary loops.
當(dāng)電路出現(xiàn)故障時(shí)，PTC陡然發(fā)熱，阻值聚增至高阻態(tài)，使電路
處于相對(duì)“斷開(kāi)”狀態(tài)，保護(hù)電路。
When the circuit is in disorder, the PTC will generate heat suddenly, and the ristance value will go up to the high state,. which can make the circuit in the state of relatively “breaking up” to prote the circuit.
主要應(yīng)用APPLICATIONS
小型變壓器初級(jí)線圈，充電器、通信設(shè)備程控交換機(jī)保安單元、雷電浪涌保護(hù)電路及線路的過(guò)流過(guò)載保護(hù)
Overload and current proteion of mini voltage transformer primary loops, chargers, safety guard unit and thunder surging proteion circuit of telecom apparatus, and industry-controlling exchangers
電能表，數(shù)字萬(wàn)用表RS485接口的過(guò)流保護(hù)，數(shù)字萬(wàn)用表的過(guò)流保護(hù)，微電機(jī)、晶體管的過(guò)流保護(hù)
Over-current proteion of ammeter, dial multi-meterRS485interface, micro-elericity machinery and transistor
一般技術(shù)參數(shù)GENERAL TECHNICAL DATA
額定工作電壓RATED VOLTAGE | Vn | 12V ~ 220 Vrms |
工作電壓MAX. OPERATING VOLTAGE | Vmax | 20V ~ 265 Vrms |
耐電壓SURGE VOLTAGE WTTHSTANDING | Vs | Vmax&tim;（1.2~1.5） |
阻值允差(常規(guī))TOLERANCE OF RISTANCE (TYP.) | ΔRN | &plun;20%（M），&plun;25%（V） |
不動(dòng)作電流N-TRIP CURRENT | In | 10mA~1800mA |
動(dòng)作電流TRIP CURRENT | It | 20mA~3600mA |
工作電流MAX. OPERATING CURRENT | Imax | 0.2A~10.0Arms |
恢復(fù)時(shí)間RTORE TIME | Tr | 60 S（max） |
一般開(kāi)關(guān)次數(shù)TYPICAL SWITCHING TIM | N | 100次 |
開(kāi)關(guān)溫度允差TOLERANCE OF SWITCHING TEMP. | ΔTc | &plun;10℃ |
工作溫度范圍OPERATING TEMPERTURE RANGE | TA
| -25 ~ +125℃(V=0 V) 0~ +60℃(V=Vmax) |
儲(chǔ)存條件STORAGE CONDITIONS： 溫度Temperature 相對(duì)濕度Relative humidity 大氣壓Atmosphere prsure |
-40 ~ +85℃ ≤95% RH (&plun;40℃) 86 ~ 106 Kpa | |
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