WSSX series of explosion-proof electrical contacts, bimetal thermometer casing made of aluminum alloy, aluminum alloy shell instrument may produce sparks arc circuit is separated with the case outside the explosive gas mixture, so as to achieve the purpose of the explosion-proof. 

 The explosion-proof electrical contacts, bimetal thermometer product performance in line BG3836.1-2000 "for explosive gas atmospheres with explosion-proof electrical equipment - Part 1: General requirements" and GB3836.2-2000 "explosive gas atmospheres - explosion-proof electrical equipment - Part 2: "d" "standards for explosion-proof electrical equipment. 

 The bi-metal thermometer of the explosion-proof electrical contact with the electrical contact device - that is, mechanical electrical contacts. When the measured medium temperature, fine on the free end of the shaft and the steering linkage to drive the pointer and moving contact rotation on the dial indicates the temperature of the change in value, with the fixed contact (lower limit touch point) contact or disconnect the instantaneous action of relays and contactors, circuit system, in order to achieve automatic control and alarm purposes. 

 WSSX series of explosion-proof electrical contacts, bimetal thermometer is wound into spiral tubular one end of the bimetal is fixed, another free end of the pointer is connected to rotate as the temperature changes, and promote the single needle pointer rotation indication temperature indicating thermometer. Petroleum, coking, chemical, pharmaceutical and other production site, carbide and other explosives in the range of -80 ℃ ~ +500 at liquid, steam and gases, and solid surface of the temperature measurement. 




 The main technical parameters 

 Dial nominal diameter: 100 
 Thermal response time: ≤ 40s 
 Explosion-proof rating: DIIBT4 
 Rated power: 10VA 
 Maximum working voltage: 220V 
 Maximum operating current: 0.7A 


 Specification: 


 Model temperature range ° C accuracy class protection tube material specification install the device 

 WSSX-410B -80 - +40 

 -40 - +80 

 0-50 

 0-100 

 0-150 

 0-200 

 0-300 

 0-400 

 0-500 
 1.5 1Cr18NI9Ti 

 304 

 316 

 316L 

 Hastelloy C-276 

 H.AIIoyc-276 
 75 

 100 

 150 

 200 

 300 

 400 

 500 

 750 

 1000 
 Fixtures thread 
 WSSX-480B 
 WSSX-411B movable external thread 
 WSSX-481B 
 WSSX-412B movable internal thread 
 WSSX-482B 
 WSSX-413B mounting flange 
 WSSX-483B 
 WSSX-414B fixed thread 
 WSSX-for grace grace Show details for grade grade 
 WSSX-415B card sets thread 
 WSSX-485B 
 WSSX-416B card flange 
 WSSX-486B