The United States the UE the J120-174, the J120-494, the J120-455 explosion-proof pressure switch 


 Technical Specifications 
 Storage temperature -54 ~ 71 ℃ 
 Temperature limit of -50 ~ 71 ° C; type 36 ~ 39, 520 ~ 525 type .701-705 type for -17 to 71 ° C; 
 Every change of the ambient temperature of 28 ℃, the typical drift of the set point value is less than 1% of full scale; for the E121 and E122 type, less than 2%; 
 Set point repeatability of the temperature switch for the adjustable range of ± 1%; pressure switch, 50-55, S50B-S55B ,126-164, S126B-S164B.171-174 ,270-274 ,358-376 ,520-535 ,560-564 ,701-705 model is the adjustable range of ± 1% ,450-559 adjustable range of ± 0.5%; 36-39,183-194,483-494,565-567,612-680 models such as the adjustable range of ± 1.5% 
 Impact by 10 ms, 15G impact test can reproduce the set point 
 Anti-vibration 2.5G, 5 ~ 500Hz vibration experiments can reproduce the set point 
 Shell aluminum alloy (Max.0.4% Cu) die-casting shell; epoxy coating; gasket seal; the former standard for J, C, F switch has an internal set point locking feature; the former standard for the B, H, E model with the anti-jamming airtight aluminum scale cover; aluminum nameplate 
 Enclosure rating NEMA 4X; 7; 9; IP66; 
 Switch output one or two single pole double throw (SPDT) output; double switch were set to 100% span the entire range; switch can be connected as normally open or normally closed 
 Power rating of 15A, 125/250/480VAC 
 Weight of 3 to 8 pounds; (varies by model) 
 Electrical interface 3/4 "NPT; standard terminals; 
 S50B-S55B, pressure port, S126B-S164B ,171-194 ,483-494 ,520-535 and other models of interface 1/2 "NPTF; 560-564 type 2 Disc health level access; 565-567 type 1 1/2 "Disc health level connection; other models for 1/4" NPTF 
 Model: the J120-126, the J120-127, the J120-128, the J120-129, the J120-130, the J120-131, the J120-132, the J120-133, the J120-134, the J120-135, the J120-136, the J120-137 J120-138, J120-139, J120-140, J120-141, J120-142, J120-143, J120-145, J120-146, J120-147, J120-148, J120-149, J120-150, J120- 151, J120-152, J120-153, J120-154, J120-155, J120-156, J120-157, J120-158, J120-159, J120-160, J120-161, J120-162, J120-163, the J120-164; 

 J120-S126B, J120-S127B, J120-S128B, J120-S129B, J120-S130B, J120-S131B, J120-S132B, J120-S133B, J120-S134B, J120-S135B, J120-S136B, J120-S137B, J120- S138B, J120-S139B, J120-S140B, J120-S141B, J120-S142B, J120-S143B, J120-S145B, J120-S146B, J120-S147B, J120-S148B, J120-S149B, J120-S150B, J120-S151B, J120-S152B, J120-S153B, J120-154, J120-155, J120-S156B, J120-S157B, J120-S158B, J120-S159B, J120-S160B, J120-S161B, J120-S162B, J120-S163B, J120- S164B