文件编号
Doc.No.
NDT2920002
版次
Edition
第
5
版
Version5
实施日期
Implementation date
20181213
34
(2)At rated control supply voltage of 35%-70%, Under-voltage release should be reliable to trip
breakers. (3)At rated control supply voltage of 85%-110%, Under-voltage release should be able
to close breakers.
(4)At rated control supply voltage less than 35%, Under-voltage release should prevent breakers
from
closing.
9.2 分励脱扣器 Shunt release
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。
Power supply is connected to the shunt release according to outlet wire number (no need to
distinguish positive and negative for direct current). At rated control supply voltage of 70%-110%,
shunt release should be reliable to trip breakers.
图 15-1：欠压脱扣器接线图 图 15-2：分励脱扣器接线图
Fig.15-1 Wiring diagram of Under-voltage release Fig.15-2 Wiring diagram of
shunt release
9.3 辅助触头、报警触头 Auxiliary contact and alarm contact
9.3.1 辅助、报警触头接入相应外围控制电路 Peripheral control circuits of connection of auxiliary and
alarm contacts
表 16：辅助开关电气特性表
Table 16: Electrical characteristics 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)
交流 380V 时额定工作
电流 Ie（A）
Rated working current
for AC 380V Ie (A)
辅助触头
Auxiliary
contact
125、250
3
0.3
400～1600
0.4
报警触头
Alarm contact
125、250
3
0.3
400、630
0.4
800
0.3
1250、1600
0.4
9.3.2 辅助、报警触头状态指示图 Status indication of auxiliary contact and alarm contact
