电动葫芦属于起重设备，为防止事故的发生，使用者有必要详细的了解电动葫芦。下面介绍电动葫芦断火限位器的知识，方便大家更好的了解电动葫芦。 Electric hoist belongs to lifting equipment. To prevent accidents, it is necessary for users to have a detailed understanding of electric hoist. The following is an introduction to the knowledge of the electric calabash limiter, so that you can better understand the electric hoist. 　　断火限位器是用来限制葫芦式起重机各机构在一定安全范围内运行，安装在各机构行程的终点，对电动机实行控制的保护电器。电动葫芦断火限位器是安装在起升电机机座上，与电动葫芦自身的限位杆配套使用，从而达到上升、下降双向限位的目的。 The cut-off limiter is used to limit the operation of the hoist crane of the hoist in a certain safe range, installation of the end point of the travel of the various agencies, the control of the electric motor to protect the electrical appliances. The electric hoist limit device is installed on the hoist motor seat, which is used with the limit rod of the electric hoist to achieve the aim of increasing and decreasing the two-way limit. 　　电动葫芦断火限位器（LXD或LX44型）LXD3A、10A、20A和、40A系列断火限位器，适用于交流50HZ，电压至380V，电流3A至40A的电力线路中，供0.5－10吨CD，MD，一般用于钢丝绳式电动葫芦作升、降限位保护之用，可直接分断提升电动机的主回路。LXD3A为重锤拉链式断炎限位器，专供环链电动葫芦使用。 Electric hoist fire limiter (LXD or LX44 type) LXD3A, 10 a, 20 a and b, 40 series a fire stop, applied to ac 50 hz, voltage 380 v, current 3 a to 40 a power line, for 0.5-10 tons of CD, MD, is generally used in wire rope electric hoist for ascending and descending limit protection, can be directly off the main circuit of hoist motor. LXD3A is used as a chain - chain - chain block for electric hoist. 　　断火限位装置由断火限位器和导杆组成。断火限位器安装于起升电动机接线盒上，用于起升机构的上下限位保护，其工作原理是：钢丝绳导绳器卡板拨动导杆进而带动断火限位开关切断起升电动机电源。 The cut-off limit device is composed of a fire limiter and a guide rod. Fire limiter installed on the hoisting motor terminal box, upper and lower limit protection for lifting mechanism, its working principle is: dial the guide rod and wire rope guide line, card kits to drive off the fire limit switch to cut off the hoisting motor power supply.