Hammond DNFF254BK115 550 CFM 254 mm Filtered Fan Kit, 115 VAC

The DNFF254BK115 is a hard-wired AC filter fan kit built for cooling industrial enclosures, electrical cabinets and rack systems while helping keep dust and airborne contaminants out. It is the largest fan size in the DNFF Series, pairing a 10.00 in (254 mm) fan with an IP5X-rated replaceable filter to deliver 550 CFM of free-flow air. Specifiers include OEM engineers, panel builders, industrial automation teams and facilities groups who need permanent wiring rather than a plug-in cord set.

Both the front screen and the back panel are ABS plastic, and the DNFF Series filter grille is flame-retardant ABS offered in Black, ANSI 61 Gray and RAL 7035 Light Gray to match Hammond cabinets and enclosures; this part number is the Black grille version. The kit is complete for installation: fan, plastic filter grille, replaceable filter, metal safety guard, wiring leads or cord (model dependent) and mounting hardware, which here includes 12 panhead self-tapping 10-32 x 1/2" screws, 8 black panhead #10-32 x 1/2" screws, 8 #10 flat washers and 8 #10-32 serrated nuts.

Electrically, DNFF254BK115 is rated 115 VAC, 50/60 Hz, 0.29 Amps, with a measured noise level of 60 dB. The series ordering table lists a 24 inch cord for this model and the drawing shows a 2 foot wire lead. The unit can be run continuously (always on) or switched by an external thermostat.

The assembly measures 305.00 mm [12.008 in] square with an overall side dimension of 119.30 mm [4.697 in]. The required plate cutout is 279.40 mm [11.000 in] square with 16 mounting holes of 6.35 mm [0.250 in] diameter. Fan components are UL Recognized to UL 507 and cUL Recognized or CSA Certified to CSA-C22.2 No. 113, and the part is RoHS and REACH compliant. PFF6000 standard and PLFF6000 pleated filter media are available for routine maintenance.