Page 51 - 民电电气有限公司2020

MDM1Z-PV 光伏塑壳直流断路器 创造卓越，追求顾客满意
Create Excellence, The Pursuit Of Customer Satisfaction
PV molded case DC circuit breakers

概述 Overview

MDM1Z-PV 系列光伏直流断路器适用于额定电压至 DC1000V，额定电流至 1250A 的直流
电网电路中，直流断路器具有过载长延时保护、短路瞬时保护功能，用来分配电能和保护线
路及电源设备免受过载、短路等故障的危害。 塑壳直流断路器的操作机构具有快速闭合和快
速分断功能，结构紧凑，体积小，使用方便。
MDM1Z-PV series photovoltaic DC circuit breaker is suitable for DC grid circuit with rated
voltage up to DC1000V and rated current up to 1250A. DC circuit breaker has overload
long-delay protection and short-circuit transient protection function for distributing electric
energy and protection circuit and power supply equipment. Protect from overload, short
circuit and other faults. The operating mechanism of the molded case DC circuit breaker
has the functions of quick closing and fast breaking, compact structure, small size and
convenient use.
使用环境 Use environment
海拔高度 2000m 及以下，高于 2000m 需降容使用，其他特殊要求请与制造商联系；
能耐受潮湿空气的影响 ( 三防型 ) ①；
能耐受盐雾油雾的影响 ( 三防型 )；
能耐受霉菌的影响 ( 三防型 )；
在无爆炸危险的介质中，且介质无足以腐蚀金属和破坏绝缘的气体与导电尘埃的地方。
注：①三防产品请注明 TH。
Altitudes above 2000m and below, above 2000m, need to be derated, please contact the manufacturer for other special requirements;
Can withstand the effects of humid air (three-proof type) 1;
Can withstand the effects of salt spray oil mist (three-proof type);
Can withstand the effects of mold (three-proof type);
In a medium that is not in danger of explosion, and where there is no gas or conductive dust that is sufficient to corrode metals and destroy insulation.
Note: Please specify TH for the three anti-products.
型号含义 Model meaning

MD M1Z - G 250 PV / 4 + 3 00
↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓

企业 设计 G：隔离型 壳架 太阳能光伏 极数 2：瞬时脱扣 附件代号
代号 代号 ( 不带保护 ) 等级 发电专用 Number of 3：复式脱扣 见下表
enterprise design 无：带保护 Shell frame Solar photovoltaic poles 0：无脱扣 Attachment code
Code Code G: Isolated grade Power generation 2: Instantaneous See the table below
(without tripping
protection) 3: double trip
None: with 0: no tripping
protection

B + P 225A DC1000V Y1
↓ ↓ ↓ ↓ ↓

接线方式代号 外部附件 额定电流 额定工作电压 接线方式
无：板前 无：直接操作 Rated current Rated operating voltage 无：自主接线
B：板后 P：电动操作机构① 125-1250A DC500-1000V Y1：上进下出
C：插入式 Z；旋转手柄操作 Y2B：下进下出②
C2：抽出式 External attachment Wiring
Wiring method code None: direct operation None: autonomous wiring
None: before board P: Electric operating Y1: Up and down
B: behind the board mechanism 1 Y2B: Down and down 2
C: plug-in Z; rotary handle operation
C2: Withdraw

①注：电动操作机构工作电压：AC110V 、AC220V 、DC24V、DC110V、DC220V。 1 Note: Working voltage of electric operating mechanism: AC110V, AC220V, DC24V, DC110V, DC220V.
②注：Y2、Y2B ≥ 400A 的壳架等级不适用内部链接。 2 Note: The frame level of Y2, Y2B ≥ 400A does not apply to internal links.

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