SPS-2D拉线开关的钢丝绳一端固定在一个固定的吊环上，另一端固定在开关臂杆上，钢丝绳应每三粘一个支撑，端部固定在拉线开关臂杆的孔上，开关到固定端的距离通常不超过30米，两开关之间的距离通常不超过60米，向上向下或拉动的力促使臂杆转动到了警位置，触动微动开关并锁定直到人工手动复位。 

标准拉线开关防护等级为NEMA4适应于室内或室外安装。FM认证用于二级1类E, F和G组的开关。表面经特殊处理可用于盐性、碱性或酸性区域。对于腐蚀特别严重的区域表面采用无电镀镍处理。

设备描述 

　拉线开关是双向触动的，既可安装在输送机中间位置，也可安装在其两端 

　通用的安装设计使拉线开关即可安装中输送机纵梁顶部也可安装在其两侧 

　坚固的铸铝外壳，防护等级为NEMA 4，特殊的环境可选择特殊的表面处理 

　整体式盖板使得接线及开关调整方便简单，而不用拆卸开关 

　结构件设计紧凑 

　醒目的黑色臂杆初托黄色或银色壳体，易于辨别报警或正常状态 

　提供完整的附件，包括钢丝绳、绳夹及拉线支撑螺栓 

　手动杠杆复位 

　FM认证用于二类区域，增加隔离罩后可用于一类区域 

　可选红色小旗用于报警指示

应用范围 

　常规皮带输送机 

　梭式输送机 

　裙边式给料输送机 

　斗式提升机 

　包装生产线 

　堆料/取料系统，起重机，挖掘机 

　轮船装卸系统 

　水平给料机

（XUZHOU RAMSEY） 皮带机拉线急停开关

 offers a variety of components for monitoring conveyors and other bulk material handling equipment, including the Ramsey Pro-Line Safety Cable Pull Switch. These devices monitor operating processes for potentially hazardous conditions and activate an alarm when they occur. This helps to keep your personnel safe, your equipment from being damaged, your time from being wasted, and your profits from becoming losses.

For Emergency or Normal Shut-Off

A safety pull cable is attached to the actuating arm of the Ramsey Safety Cable Pull Switch and terminated at fixed mounts at either end of a conveyor. Force applied to the pull cable at any position causes the actuating arm to move into a tripped-locked position and activates an alarm from one DPDT or two SPDT micro-switches, alerting equipment circuits of the stop condition. This will stay locked until manually reset by the reset lever.

Options

Universal mounting plate

Secondary flag alarm

Complete hook-up accessories including: cable, clamps, standoffs, lights

NEMA 4 and NEMA 9 Alarm Light

Special finishes for highly corrosive conditions   

European tension spring-loaded mounting hardware