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1．引言
微型斷路器符合國(guó)家規(guī)范《家用及類(lèi)似場(chǎng)所用過(guò)電流保護(hù)斷路器》（GB10963）及《低壓開(kāi)關(guān)設(shè)備和控制設(shè)備低壓斷路器》（GB14048.2）規(guī)定，用作保護(hù)建筑物的線路設(shè)施及類(lèi)似用途的斷路器，是設(shè)計(jì)成適用于未受過(guò)訓(xùn)練的人員（非BA4、BA5類(lèi)人員）使用，無(wú)需進(jìn)行維修，其額定電流在正常運(yùn)行時(shí)不可能從一個(gè)額定值改變至另一個(gè)額定值，而且不用工具是不能改變其額定值的一種空氣式斷路器。微型斷路器額定電流優(yōu)選值是：6A、8 A、10A、13A、16A、20A ,、25A、32A、40A、50A、63A、80A、100A和125A。微型斷路器的短路分?jǐn)嗄芰^小，大多數(shù)為6 kA 、10kA ，個(gè)別廠家有高分?jǐn)嗄芰Φ漠a(chǎn)品如達(dá)到36 kA、50 kA等。微型斷路器對(duì)線路及設(shè)備的過(guò)載、短路及接地故障都能夠起到有效的保護(hù)，在低壓配電中應(yīng)用十分廣泛。
2. 微型斷路器熱磁脫扣曲線特性分析
微型斷路器的熱磁脫扣曲線（時(shí)間-電流特性曲線）是由內(nèi)部的結(jié)構(gòu)所決定的，如圖1所示，其內(nèi)部脫扣器是由電磁脫扣器（也稱(chēng)過(guò)電流脫扣器）和熱脫扣器（又稱(chēng)過(guò)載脫扣器）組成。電磁脫扣器在電路發(fā)生短路或嚴(yán)重過(guò)載時(shí)，其動(dòng)作從而使斷路器跳閘斷開(kāi)，其動(dòng)作特性具有瞬動(dòng)特性或定時(shí)限特性。熱脫扣器是當(dāng)電路過(guò)載時(shí)，其熱元件發(fā)熱使雙金屬片向上彎曲，推動(dòng)自由脫扣機(jī)構(gòu)動(dòng)作，動(dòng)作特性具有反時(shí)限特性。
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S203M-K3 NA
S203M-K4 NA
S203M-K6 NA
S203M-K8 NA
S203M-Z1 NA
S203M-Z2 NA
S203M-Z3 NA
S203M-Z4 NA
S203M-Z6 NA
S203M-Z8 NA
S203-Z10 NA
S203-Z16 NA
S203-Z20 NA
S203-Z25 NA
S203-Z32 NA
S203-Z40 NA
S203-Z50 NA
S203-Z63 NA
S201-C0.5 NA
S201-D0.5 NA
S201-K0.5 NA
S201-K1.6 NA
S201M-B10 NA
S201M-B13 NA
S201M-B16 NA
S201M-B20 NA
S201M-B25 NA
S201M-B32 NA
S201M-B40 NA
S201M-B50 NA
S201M-B63 NA
S201M-C10 NA
S201M-C13 NA
S201M-C16 NA
S201M-C20 NA
S201M-C25 NA
S201M-C32 NA
S201M-C40 NA
S201M-C50 NA
S201M-C63 NA
S201M-D10 NA
S201M-D13 NA
S201M-D16 NA
S201M-D20 NA
S201M-D25 NA
S201M-D32 NA
S201M-D40 NA
S201M-D50 NA
S201M-D63 NA
S201M-K10 NA
S201M-K13 NA
S201M-K16 NA
S201M-K20 NA
S201M-K25 NA
S201M-K32 NA
S201M-K40 NA
S201M-K50 NA
S201M-K63 NA
S201M-Z10 NA
S201M-Z16 NA
S201M-Z20 NA
S201M-Z25 NA
S201M-Z32 NA
S201M-Z40 NA
S201M-Z50 NA
S201M-Z63 NA
S201-Z0.5 NA
S201-Z1.6 NA
S203-C0.5 NA
S203-D0.5 NA
S203-K0.5 NA
S203-K1.6 NA
S203M-B10 NA
S203M-B13 NA
S203M-B16 NA
S203M-B20 NA
S203M-B25 NA
S203M-B32 NA
S203M-B40 NA
S203M-B50 NA
S203M-B63 NA
S203M-C10 NA
S203M-C13 NA
S203M-C16 NA
S203M-C20 NA
S203M-C25 NA
S203M-C32 NA
S203M-C40 NA
S203M-C50 NA
S203M-C63 NA
S203M-D10 NA
S203M-D13 NA
S203M-D16 NA
S203M-D20 NA
S203M-D25 NA
S203M-D32 NA
S203M-D40 NA
S203M-D50 NA
S203M-D63 NA
S203M-K10 NA
S203M-K13 NA
S203M-K16 NA
S203M-K20 NA
S203M-K25 NA
S203M-K32 NA
S203M-K40 NA
S203M-K50 NA
S203M-K63 NA
S203M-Z10 NA
S203M-Z16 NA
S203M-Z20 NA
S203M-Z25 NA
S203M-Z32 NA
S203M-Z40 NA
S203M-Z50 NA
S203M-Z63 NA
S203-Z0.5 NA
S203-Z1.6 NA
S201M-C0.5 NA
S201M-D0.5 NA
S201M-K0.5 NA
S201M-K1.6 NA
S201M-Z0.5 NA
S201M-Z1.6 NA
S203M-C0.5 NA
S203M-D0.5 NA
S203M-K0.5 NA
S203M-K1.6 NA
S203M-Z0.5 NA
S203M-Z1.6 NA
catch assembly
TS2000 WIRE (300MM)
TS2000 WIRE (500MM)
TS2000 WIRE (600MM)
TS2000 WIRE (800MM)
DIN rail clip S200NM
TS2000 WIRE (1000MM)
TS2000 WIRE (1100MM)
TS2000 WIRE (1500MM)
TS2000 WIRE (2000MM)
TS2000 WIRE (2500MM)
TS2000 WIRE (3000MM)
TS2000 WIRE (4000MM)
