1、按結構分

可分(fen)為框架式(shi)(shi)(shi)和塑(su)(su)料外殼式(shi)(shi)(shi)兩種。框架式(shi)(shi)(shi)斷路器所有(you)(you)結(jie)(jie)構元件(jian)都(dou)裝(zhuang)在同一框架或底(di)板上，可有(you)(you)較(jiao)多(duo)結(jie)(jie)構變化(hua)方式(shi)(shi)(shi)和較(jiao)多(duo)類型脫扣(kou)器，一般(ban)大容(rong)量(liang)(liang)斷路器多(duo)采用(yong)框架式(shi)(shi)(shi)結(jie)(jie)構。塑(su)(su)料外殼式(shi)(shi)(shi)斷路器所有(you)(you)結(jie)(jie)構元件(jian)都(dou)裝(zhuang)在一個塑(su)(su)料外殼內，結(jie)(jie)構緊湊(cou)、體積(ji)小，一般(ban)小容(rong)量(liang)(liang)斷路器多(duo)采用(yong)塑(su)(su)料外殼式(shi)(shi)(shi)結(jie)(jie)構。

2、按用途分

①導線保護(hu)用(yong)斷路器。主要用(yong)于(yu)照明線路和(he)保護(hu)家用(yong)電器，額(e)定(ding)電流在6～125安范圍(wei)內。

②配(pei)電(dian)(dian)用斷路器。在(zai)低壓配(pei)電(dian)(dian)系統中作(zuo)過載、短路、欠電(dian)(dian)壓保護之(zhi)用，也可用作(zuo)電(dian)(dian)路的不頻繁操(cao)作(zuo)，額(e)定電(dian)(dian)流一般(ban)為200～4000安。

③電(dian)動機保護用(yong)斷(duan)路器。在不頻繁操(cao)作場合，用(yong)于(yu)操(cao)作和保護電(dian)動機，額定電(dian)流一般為6～63安。

④漏(lou)電保護斷路器。主要用于防止漏(lou)電，保護人(ren)身安(an)全，額定電流多在63安(an)以下(xia)。

3、按性能分

分為普通(tong)式和(he)限(xian)(xian)(xian)流(liu)式兩種(zhong)。限(xian)(xian)(xian)流(liu)式斷(duan)(duan)(duan)(duan)路(lu)(lu)器(qi)一般(ban)具(ju)有特殊結構的(de)觸(chu)頭(tou)系(xi)統，當短(duan)(duan)路(lu)(lu)電(dian)(dian)流(liu)通(tong)過(guo)時，觸(chu)頭(tou)在電(dian)(dian)動(dong)力作(zuo)用下斥(chi)開而提前(qian)呈現(xian)電(dian)(dian)弧，利用電(dian)(dian)弧電(dian)(dian)阻(zu)來限(xian)(xian)(xian)制短(duan)(duan)路(lu)(lu)電(dian)(dian)流(liu)的(de)增長。限(xian)(xian)(xian)流(liu)式斷(duan)(duan)(duan)(duan)路(lu)(lu)器(qi)比(bi)普通(tong)斷(duan)(duan)(duan)(duan)路(lu)(lu)器(qi)有較大的(de)開斷(duan)(duan)(duan)(duan)能(neng)力，并能(neng)限(xian)(xian)(xian)制短(duan)(duan)路(lu)(lu)電(dian)(dian)流(liu)對被保護(hu)線路(lu)(lu)的(de)電(dian)(dian)動(dong)力和(he)熱(re)效應(ying)的(de)作(zuo)用。低壓斷(duan)(duan)(duan)(duan)路(lu)(lu)器(qi)有較強的(de)分斷(duan)(duan)(duan)(duan)和(he)接通(tong)短(duan)(duan)路(lu)(lu)電(dian)(dian)流(liu)的(de)能(neng)力，額定(ding)電(dian)(dian)流(liu)為100安(an)的(de)塑(su)料外殼(ke)式斷(duan)(duan)(duan)(duan)路(lu)(lu)器(qi)，短(duan)(duan)路(lu)(lu)通(tong)斷(duan)(duan)(duan)(duan)能(neng)力約為12千安(an)，而限(xian)(xian)(xian)流(liu)式斷(duan)(duan)(duan)(duan)路(lu)(lu)器(qi)則可(ke)達30千安(an)。