文件编号：
NDT2920018
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
28
页
共
39
页
9.1Undervoltage tripper
When the breaker has an undervoltage tripper, the undervoltage tripper should be electrified, and
then the breaker allows switch on.
Power supply Isd accessed according to wiring connector number on
the external undervoltage module (anode and cathode of DC power supply
are not differentiated).
When power voltage declines to 70%～35% of the rated working
Voltage of undervoltage tripper, the undervoltage tripper can
reliably break the breaker up; when power voltage Isd lower than
the rated working voltage of undervoltage tripper by 35%, the
undervoltage tripper can prevent the breaker from closing; when
power voltage Isd higher than the rated working voltage of
undervoltage tripper by 85%, the undervoltage tripper can
guarantee the reliable closure of breaker.
9.2 分励脱扣器
根据引出的导线编号接入电源(直流电源不必区分正
负极)。当分励脱扣器的外加电压介于额定控制电源电压的 70%-110% 之间时，能可靠分断断路器。
9.2 Shunt tripper
Power supply Isd accessed according to wiring connector number on
the external undervoltage module (anode and cathode of DC power supply
are not differentiated).When impressed voltage of shunt tripper Isd between
70% and 110% of rated control power voltage, the breaker can be reliably
broken.
9.3 辅助触头、报警触头
9.3.1 辅助、报警触头接入相应外围控制电路
9.3 Auxiliary contact, alarm contact
9.3.1 Auxiliary and alarm contacTsd accessed into relative external control circuit/
表
17
：辅助开关电气特性
Table 17: Electrical characterIsdtics of auxiliary switch
分
类
Category
壳架电流（
A
）
Frame current (A)
约定发热电流
Ith
（
A
）
Conventional thermal
current (A)
额定工作电流
Ie
（
A
）
Rated working current
for Ie (A)
辅助触头
Auxiliary contact
100
、
250
、
400
、
630
、
800
3
1.5A(AC400V)
0.15(DC220V)
报警触头
Alarm contact
3
1.5A(AC400V)
0.15(DC220V)
分励脱扣器接线图
Wiring diagram of shunt tripper
