II 3G Ex dc ec IIB T5 Gc / II 2D Ex tb IIIC T85°C Db / Zona 2-21 (Gas and Dust)
Limit Switches FGR2-Ex, certified ATEX and IECEx, in aluminum and antistatic plastic case, suitable for use in Zone 2 (Gas) and Zone 21 (Dust).
The device works through a gear transmission, drives a cam system operates on 4 or 6 microswitch that after a certain number of revolutions predispose the engine or equipment at startup or at the stop. Each cam is provided with an adjusting screw to adjust “micrometer” that operates independently, and thus can calibrate the ‘opening and closing of each microswitch according The necessary functional requirements. The gear drive system allows to choose different ratios and can be provided even in twin rear shaft version.
Reference standards: EN 80079-34, EN 60947-3, EN 61241-0, EN60079-0, EN60079-31, EN60079-15.
Directive: ATEX 2014/34 /EU