精品文档---下载后可任意编辑适用范围 APPLICATION RANGE●BM1 系列塑料外壳式断路器（以下简称断路器）， ●BM1 series moulded case breakers (hereafter reffered to as simply breakers)是本公司采纳国际先进设计、制造技术研制、开 are one of the new type breakers which have been developedbythe company发的新型断路器之一。其额定绝缘电压为 800V , using international advanced design and manufacturingtechnology. The rated适用于沟通 50Hz，额定工作电压 690V 及以下， insulation voltage of the breakers is800V,suitable for turn-on or turn-off not额定工作电流至 630A 的电路中作不频繁转换及 frequently and staring a motor not frequently in the circuit of AC50Hz, rated电动机不频繁起动（BM1-630 无电动机保护型） working voltage 690 V or below-rated working current up to 630A(BM 1 -630之用。断路器具有过载、短路和欠电压保护功 is motor protection-free).The breakers have overload, short-circuit and under能，能保护线路和电源设备不受损坏。 voltage protection devices. so as to protect the circuit and power equipment against damage.●断路器根据其额定极限短路分断能力（Icu）的高 ●The breakers. according to the rated maximal value to short-circuit breaking 低、分为 L 型（标准型）、M 型（较高分断型）、 ability (Icu), would be classified three kinds types L(typical type)，M(second H 型（高分断型）三类。该断路器具有体积小、 high breaking type) and H(high breaking type). The breakers are of the分断能力高、飞弧短（部分规格零飞弧）、抗振动 following characteristics：compact size, high breaking ability, short arc- over等特点。 distance (some of the “0”arc-over distance)and shakeproof.●本断路器可垂直安装（即竖装），亦可水平安装 ●The breaker could be installed vertically(upright)or horizontally(transverse).(即横装)。 ●本断路器具有隔离功能，其相应的符合为: ●The breaker has disconnecting function, its corresponding symbol is shownas...
