Filter Fan Plus
FPI/FPO 018 | up to 1010 m³/h (291 x 291 mm)

  • New air-flap outlet technology for high airflow
  • Easy mounting
  • Protection type test/Environmental rating by independent testing institutes (VDE & UL)
  • Two systems for optimal airflow (FPI/FPO)
  • Standard enclosure cut-out sizes (5 sizes)
  • One filter mat
  • Two fan speeds

Filter fans are used to provide an optimum climate in enclosures and cabinets with electrical/electronic components. The interior temperature of an enclosure can be reduced by channelling cooler filtered outside air into the enclosure thus expelling heated internal air. The resulting airflow prevents formation of localised hot pockets in installations and protects electronic components from overheating.

The Filter Fan Plus series uses a new airflap-outlet technology for the air outlet and thus reaches a high degree of airflow. A ratchet mechanism is used for mounting and provides high stability and tightness. Depending on the application there are two systems that are available - the FPI or FPO system. The FPI system is a standard installation with a filter fan in the lower part of the enclosure which ensures that fresh air is fed into the enclosure (airflow direction "In"). This system consists of a filter fan and exit filter. Whereas in the FPO system, the filter fan is located in the upper area of the enclosure to avoid heat buildups (airflow direction "Out"). The FPO system is composed of an intake filter and exit filter fan. The Filter Fan Plus series may also be used outdoors with appropriate protective measures or when equipped with weather proof accessories, e.g. Hose-proof Hood FFH 086.

Axial fan, ball bearing

fan speed 1: service life L10 at +40 °C (+104 °F): min. 76,000 h
rotor metal
fan speed 2: service life L10 at +40 °C (+104 °F): min. 54,000 h
rotor plastic

Connection3-pole clamp for 2.5 mm², clamping torque 0.8 Nm max.
Casing, hood, flapsplastic according to UL94 V-0, light grey;
UV light resistant according to UL746C (f1)
Enclosure cut-out291 x 291+1 mm
Mounting frame4 built-in ratchet braces for mounting
(6 notches for wall thickness 1-4 mm).
Additional use of screws possible if needed1.
Filter matG3 acc. to DIN EN 779, average arrestance Aa 84 %
Filter materialsynthetic fibre with progressive construction, temperature
resistant to +100°C, self-extinguishing class F1,
moisture resistant to 100% RH, reusable
Operating temperature

fan speed 1 & 2, 50 Hz: -25 to +55 °C (-13 to +131 °F)
fan speed 1, 60 Hz: -25 to +35 °C (-13 to +95 °F)
fan speed 2, 60 Hz: -25 to +50 °C (-13 to +122 °F)

Storage temperature-40 to +70 °C (-40 to +158 °F)
Operating/Storage humiditymax. 75 % RH (non-condensing)
Protection type/Protection classIP54 / I (earthed)
Environmental rating UL/NEMAUL TYPE 12 / NEMA 12
ApprovalsVDE, UL File No. E234324, EAC
Noteother voltages on request

1 Drilling marks for screw mounting are indicated on mounting frame.

Airflow direction "In": Filter Fan FPI 018

Art. No.Operating voltageSpeedAir volume,
free flow
Air volume
with exit filter
(50/60 Hz)
Average noise level
(DIN EN ISO 4871)
Depth in
Filter mat
01874.0-30AC 230 V, 50/60 Hz1433 m³/h373 m³/h400/480 mA95 W62 dB (A)160 mm3.1 kgG3
01874.0-31AC 230 V, 50/60 Hz2624 m³/h560 m³/h550/700 mA140 W70 dB (A)160 mm3.3 kgG3
01874.9-30AC 115 V, 50/60 Hz1394 m³/h339 m³/h660/800 mA90 W61 dB (A)160 mm3.1 kgG3
01874.9-31AC 115 V, 50/60 Hz2665 m³/h593 m³/h1100/1450 mA165 W72 dB (A)160 mm3.3 kgG3

Airflow direction "In": Exit Filter FPI 118

Art. No.Depth in enclosureWeight (approx.)Air outlet
11874.0-0050 mm1.0 kgair-flap outlet technology

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Airflow direction "Out": Filter Fan FPO 018

Art. No.Operating
SpeedAir volume,
free flow
Air volume
with intake filter
(50/60 Hz)
Average noise level
(DIN EN ISO 4871)
Depth in
Air outlet
01884.0-00AC 230 V, 50/60 Hz1727 m³/h413 m³/h400/480 mA95 W63 dB (A)160 mm3.2 kgair-flaps
01884.0-01AC 230 V, 50/60 Hz21010 m³/h599 m³/h550/700 mA140 W70 dB (A)160 mm3.4 kgair-flaps
01884.9-00AC 115 V, 50/60 Hz 1703 m³/h391 m³/h660/800 mA90 W62 dB (A)160 mm3.2 kgair-flaps
01884.9-01AC 115 V, 50/60 Hz21031 m³/h609 m³/h1100/1450 mA165 W71 dB (A)160 mm3.4 kgair-flaps

Airflow direction "Out": Intake Filter FPO 118

Art. No.Depth in enclosureWeight (approx.)Filter mat
11884.0-3025 mm0.8 kgG3 acc. to DIN EN 779, average arrestance Aa 84 %

Filter Mat FM 086

Filter class283 x 283 mmAverage arrestance Aa1 packaging unit
G3 acc. to DIN EN 779Art. No. 08637.0-0084 %5 pieces

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Technical Drawings

FPI 018/FPI 118
FPO 018/FPO 118