El-O-Matic - FS0200.NM50CWALL.YD22SNA.00XX Drive
the EL-O-MATIC F series, DIN, F10, single-acting, spring set 50, 90° closing clockwise / spring closing, Square mount 22mm diagonal, with double stroke limitation, adjustment range open position 80° to 95° - closed position 10° to - 5°, Standard temperature version -20°C to +80°C.