... position: Any, preferrably horizontal Optimize performance: match with a variety of mounting brackets and fan blades according to the ... horizontal installations position) Motor protection: impedance switched ( combination D-H)Mounting: guard grille and wall ring are mounted onto the ... with pulling peg and an M4 screw(combination A-D) OR M5 (combination E-H) screw.Power specifications: At 50/60Hz, the ...