Blower, Flex Mount, Wheel Dia 4 In., Wheel Width 2-1/2 In., CFM @ 0.000-In. SP 250, Voltage 24DC, Full Load Amps 5.3, Motor Type Wound Field DC, Lead Length 15 In., Ambient Temp. -32 to 130 Deg. F, Max. Inlet Temp. 130 Deg. F, Inlet Dia. 4 In., Outlet Dia. 4 In., Overall Height 9-5/8 In., Overall Width 9-1/8 In., Overall Depth 9-3/16 In., Mounting Multi Positional, Agency Compliance NMMA / CE and ISO 8846 Flange- and Flex-Mount Plastic BlowersRadial design gives high output even in complex installations with longer ducting lengths and/or multiple bends in the ducting. Feature corrosion-resistant materials throughout, low current draw, and slip-on inlet ducting connection. Flex-mount motors feature universal bracket that permits outlet to face any direction. Blowers should not be installed close to sources of direct heat exceeding 130 F. Designed for noncontinuous-duty applications such as emergency backup ventilation portable equipment, and marine, motor, or recreational vehicles.DC blowers comply with USCG 183.410 and ISO 8846 MARINE (ignition protection), are listed as NMMA type accepted, and comply with ISO 9097 MARINE (electric fans). CE Certified.