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文件编号:
NDT2920002
文件版本:
5
地址:上海市浦东新区申江南路
2000
号
邮编:
201315
电话:
(021)68586699
传真:
(021)23025796
第
4
页
共
39
页
1.
适用范围与用途/ Application scope
本断路器主要应用于交流 50/60Hz,工作电压至 AC 660/690V,工作电流至 800A 的电路中作不频繁转
换之用。具有过载长延时反时限、短路短延时反时限、短路短延时定时限、短路瞬时、预报警、接地故障
保护、
“四遥”功能、过载报警不脱扣及欠电压保护功能,能保护线路和电源设备不受损坏。
The breaker is mainly used in the circuit of AC 50/60Hz, rated working voltage AC 660/690V
and rated working current up to 800A. Provided with overload long-delay inverse time, short
circuit short- delay inverse time, short circuit short- delay definite time and instantaneous
short circuit grounding fault protection and “Four remoteness” function, overload alarm without
tripping and under voltage protection functions, the breaker can protect the circuit and electric
power unit from being damaged.
2.
型号说明/ Model and implication
ND M 3 E - □ □ □ / □ / □ □ □ □ □ □ □
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
序号 No. 序号名称 Description
NDM3E
1
企业代号 Enterprise code
ND Nader 牌 低压电器
ND Nader low-voltage electric appliance
2
产品代号 Product code
M 塑料外壳式断路器 Molded case circuit breaker
3
设计序号 Design code
3
4
系列派生代号 Derived code
E:电子式 E:Electronic type
5
壳架等级 Rated frame current
125、250、400、630、800
6
分断能力级别 Breaking class code
M:较高分断 M:moderate breaking class
H:高分断 H:high breaking class
7
操作方式 Operation mode
无代号:手柄直接操作
Without code:operation directly
P:电动操作 P:motorized operation
Z:转动手柄 Z:operation with rotary handle
8
功能派生代号 Release type
无代号:基本型 Without code: basic type
G:接地保护型 G:grounding type
T:通讯型 T: communication type
GT:接地保护通讯型
GT: grounding and communication type
9
极数 Numbers of Poles
3、4
10
附件代号 Accessory code
见附件代号对照表
Refer to Accessory code comparison table
11
用途代号 Usage code
无代号:配电用 Without code : power distribution
2:电动机保护型 2:motor protection
12
4 极产品中 N 极(中性极)形式
The pattern of neutral(N)for 4
poles breaker
C:N 极安装过电流脱扣器,且 N 极与其他三极一起
合分
C:over-current release in N pole and N pole
combines with other three poles
D:N 极安装过电流脱扣器,且 N 极始终接通
D:over-current release in N pole and N pole
always connected
13
接线方式 Wiring form
无代号:常规产品
No code: Normal product
P:联接排
P: Connection busbar
Z1:板后接线
Z1:rear connected
Z2Q:插入式板前接线