Mcdonnell & Miller AFE-1, Air flow switch w/ NEMA 7 & 9 enclosure (Hazardous Environment Applications)

For industrial hazardous environment applications requiring a NEMA 7 (Class I, Division I, Group C and D) or NEMA 9 (Class II, Division I, Group E, F, and G) rated flow switch for medium velocity 1/2" NPT conduit connection Paddle fits 8" (203mm) minimum duct size Single pole, double throw snap switch Brass, steel and aluminum construction Sensitivity adjusting screw makes flow adjustment easy Magnetic switching mechanism eliminates need for bellows Maximum ambient temperature 120 Deg. F (49 Deg. C) Maximum duct temperature 275 Deg. F (135 Deg. C)