Flame Proof 40amps Counter Weight Operated Limit Switch Shunt Gravity Type – Gas Group 2A / 2B
Flame Proof 40amps Counter Weight Operated Limit Switch is designed for operation in a hazardous environment where explosive gases/vapors are present. The robustly designed Flame-proof enclosure is a closed-grain aluminum casting and is vacuum impregnated. The enclosure is certified by CIMER-Dhanbad. Dhanbad for use in Gas Groups I, II, and IIB Each casting is subjected to a hydrostatic pressure test as specified in the standard,
limit switch with 2 NC Contacts rated for 40 Amps at 500 V.A.C.
A two ( or more) Contact elements (2NO-ZNC) e operated by respective rotating cams, suitably adjusted on a square cam-shaft When a cam on the moving load hits the ruler of the limit switch and the change over contacts rotates the square camshaft, which in turn operates.