Page 49 - 民电电气有限公司2020

MDB1Z-63 直流小型断路器 创造卓越，追求顾客满意
Create Excellence, The Pursuit Of Customer Satisfaction
DC miniature circuit breaker

概述 Overview

MDB1Z-63 系列直流小型断路器 ( 以下简称断路器 )，适用于额定电流 63A 及以下，直流额
定电压 125V 和 500V 线路中。用来对直流配电系统的设施和电气设备进行过载、短路保护
之用，可广泛用于电力、邮电、交通、工矿企业等行业。
产品符合 GB10963.2、IEC60898-2 标准。
MDB1Z-63 series DC miniature circuit breaker (hereinafter referred to as circuit breaker)
is suitable for rated current 63A and below, DC rated voltage 125V and 500V line.
It is used for overload and short circuit protection of DC power distribution system
facilities and electrical equipment, and can be widely used in electric power, post and
telecommunications, transportation, industrial and mining enterprises and other industries.
The product complies with the GB10963.2 and IEC60898-2 standards.

型号含义 Model meaning

MD B 1 Z - 63 □
↓ ↓ ↓ ↓ ↓ ↓

企业代号 小型断路 设计 直流 壳架等级额 脱扣型式：B( 电动
Enterprise 器代号 代号 系统用 定电流 63A 车专用 )C( 照明型 )
code Miniature design DC Frame Trip type: B
circuit Code System rated (electric
breaker use current 63A Car only) C
code (lighting type)

安装方式 Installation method

MDB1Z-63 直流断路器由外壳、操作机构、热脱扣器、电磁脱扣器触头系统、灭弧系统等组成，具有过载和短路保护功能。 设计独特的结构和强有力永磁
灭弧系统使产品具有 4.5kA 的短路能力，机械寿命 20000 次以上，产品外型美观，安装导轨为 TH35-7.5 型标准钢安装轨，并具有以下特点：手柄设计在
前端面的上方，操作时安全手感强、手感舒适，接线时一定要注意“+、-”极性，电源上进下出，符合电源进线特点，安装方便，节省增线。用于 1000V
电路的三极断路器，接于正回路的为二极串联边接。
MDB1Z-63 DC circuit breaker is composed of outer casing, operating mechanism, thermal release, electromagnetic tripper contact system, arc
extinguishing system, etc. It has overload and short circuit protection. The unique design structure and powerful permanent magnet arc extinguishing
system make the product have a short circuit capacity of 4.5kA and a mechanical life of more than 20,000 times. The appearance of the product is
beautiful. The mounting rail is TH35-7.5 standard steel mounting rail and has the following features: handle Designed on the front side of the front face,
the operation is safe and strong, and the hand feels comfortable. When wiring, be sure to pay attention to the "+, -" polarity. The power supply goes in
and out, conforms to the characteristics of the power supply line, and is easy to install and saves the line. The three-pole circuit breaker for the 1000V
circuit is connected to the two-pole series side of the positive circuit.

主要参数及技术性能 Main parameters and technical performance

额定极限短路能力
Rated ultimate short circuit capability
壳架等级定电流 极数 宽度/位 额定电流 瞬时脱扣器型
Shell frame Number (18mm 倍数 ) 额定电压 Rated Instantaneous
constant current of poles Width/bit Rated voltage (V) current 分断电流 时间常数 release type
Imm (A) (P) (18mm multiple) In(A) Breaking current Time constant T
Icu(A) (ms)

1 1 DC48V~250V
3000、4000、
63 2 2 DC250V~500V 1~63 10 B、C
6000
4 4 DC600V~1000V

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