Shandong Delong Electronic Technology Co., Ltd. mainly produces and sells sensors, explosion-proof equipment, controllers, static torque sensor, dynamic torque sensor, positive-pressure explosion-proof control cabinet, pressure transmitter, solar water heater control instruments, gas oil-fired boiler, gas boiler control panels, explosion-proof electrical cabinets, explosion-proof junction boxes, explosion proof junction boxes, explosion-proof hose, explosion-proof limit switch, explosion-proof proximity switch. Explosion-proof limit switch 
 The scope of 1,1,1 and Zone 2 dangerous places. 2, iia, iib class of explosive gas environment. 
 Characteristics of an aluminum alloy shell with plastic sprayed surface 
 2, built-in MCB 
 3, overload, short circuit protection, and in accordance with the requirements with leakage protection 
 4, explosion-proof limit switch built lx19 trip switch 
 5, pipe and cable wiring. 
 6, the explosion-proof limit switch complies with standard requirements of gb3836-2000.iec60079 
 Model: blx5, can replace: lx5-, bzx51-, dlxk- 
 Purpose and scope of application: 
 Flammable gas, vapor Level: IIA, IIB, IIC, grade T1 ~ T6,, explosive gas areas: Zone 1, Zone 2, in AC 50Hz, voltage 500V, current 10A line as a limit switch with.