The Breaker can be attached with shunt tripping device, undervoltage tripping device, auxiliary contacts, alarm contacts and motor-operated drive.
断路器可以加装分励脱扣器、压脱扣器，辅助触头，报警触头和电动操作机构。
The product features 2-SPDT dry contacts, an internal alarm, and a blue finish that is not confused with fire alarm stations. Auxiliary contacts can be used for remote annunciation.
同时，配置了2-SPDT干触点、内部报警器及防火蓝油，并可通过辅助触点实施远程控制。
There is main, auxiliary engine fresh water high temperature alarm device on board.
本船设有主、机淡水高温报警装置。
To build the unemployment alarm system can provide auxiliary information and policy support for industry policy adjusting and economic development.
本文是应用已公布的数据资料，使用计量经济学模型，尝试建立城镇实际失业预警系统。
To build the unemployment alarm system can provide auxiliary information and policy support for industry policy adjusting and economic development.
本文是应用已公布的数据资料，使用计量经济学模型，尝试建立城镇实际失业预警系统。
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