Stego RFF 018 Data Sheet
Ventilating
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RFF018/06-08/US
Specifications are subject to change without notice. Suitability of this product for its intended use and any associated risks must be determined by the end customer/ buyer in its final application.
STEGO, Inc. · 1395 South Marietta Parkway · Building 800 · Marietta, GA 30067 · Tel: (770) 984-0858 · Fax: (770) 984-0615
Toll free: 1-888-783-4611 (US & Canada only) · www.stegousa.com
RFF 018 Roof Filter Fan 237 cfm
Roof filter fans and roof exhaust filters are used in enclosures from which warm air must be
diverted due to increased heat development. The ready-to-connect and low-noise roof filter fan
is used to expel warm air from within the enclosure. Alternatively, the roof exhaust filter provides passive ventilation. The RFF 018 series utilizes four small axial fans instead of one
large one, improving reliability and maintaining continuous operations even if one of the fans
should fail.
Axial fans, ball bearing service life min. 50,000h at 77°F (25°C) and 65% RH
aluminum fan body, plastic rotor
Connection 3-pole clamp, AWG 14 (2.5mm²), clamping torque 0.8Nm max.
Housing plastic, UL 94V-0 / lacquered steel sheet, light grey
Filter mat G3 acc. to DIN EN 779, filtering degree 85%
Filter material synthetic fiber with progressive construction, temperature
resistant to 100°C, self-extinguishing class F1;
moisture resistant to 100% RH, reusable - can be cleaned by
washing or vacuuming
Operating / Storage temperature 49 to +158°F (-45 to +70°C)
Protection class I (grounded)
Protection type IP43 (with G3 filter mat) / IP33 (without filter mat)
Approvals UL File No. E234324
Important note: For reasons of pressure compensation, the roof filter fan must always be operated in combi-
nation with another filter fan (e.g. Part No. 01803.0-00) or a passive intake filter (e.g. Part No. 11803.0-00).
Filter mat 11.1 x 11.1” (282 x 282 mm)
G3 (1 packing unit = 3 pcs.) Part No. 08613.0-00
FM 086 Filter Mats
Part No. Mounting depth Enclosure cut-out Weight (approx.) Filter mat Protection type
11850.0-00 none 9.8 x 9.8” 4.4 lbs. (2.0kg) G3 acc. to DIN EN 779, filtering degree 85% IP43 (w/ G3 filter mat)
REF 118 Roof Exit Filter
Part No.
Operating
voltage
Air volume, free blowing
(w/ G3 filter mat)
Air volume, free blowing
(w/out filter mat)
Power
consumption
Average noise level
(DIN EN ISO 4871)
Mounting
depth
Enclosure
cut-out
Weight
(approx.)
01850.0-00 230VAC, 50Hz
1)
206 cfm (350m³/h) 294 cfm (500m³/h) 60W 55db (A) 1.7” (44mm) 9.8 x 9.8” 9.7 lbs. (4.40kg)
01851.0-00 120VAC, 60Hz 237 cfm (402m³/h) 338 cfm (575m³/h) 60W 55db (A) 1.7” (44mm) 9.8 x 9.8” 9.7 lbs. (4.40kg)
RFF 018 Roof Filter Fan
2.4”
(62 mm)
1.7”
(44 mm)
2.4” (62 mm)
15.5” (394 mm)
15.5” (394 mm)
Roof Filter Fan
Roof Exhaust
Filter
Very low noise
Minimal mounting depth
High air volume
Uniform air circulation
High reliability
Time-saving installation
10” (256 mm)
10” (256 mm)
Ø 0.12”
(3 mm)
9.8” (250 mm)
9.8” (250 mm)
Hole centers
Enclosure cut-out
4x Axial f
ans
Technical Data
1)
air volume increases by 15% when operating 230VAC filter fans at 60Hz
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