The Filter Fan Plus model 01874.0-30 is a 291 x 291 mm air intake fan unit designed for cooling electrical enclosures by drawing filtered outside air inward. It operates at 230 V AC, 50 Hz, with a power consumption of 95 W, providing an airflow of 219.5 cfm inward and 254.9 cfm at the exhaust. The unit features an axial fan with an aluminum body and metal rotor, a G3-grade filter mat meeting ISO 16890 standards, and a UL94 V-0 plastic housing in light grey. It has an IP54 protection rating, a service life exceeding 76,000 hours, and operates between -13 °F and 131 °F. Mounting is via a frame with four rotary latches and a 291 x 291 mm cut-out; connection is through a 3-pole clamp rated for 2.5 mm² and 0.8 Nm torque. The device is certified to UL NEMA Type 12.
Filter fans are used to provide "cooling" by forced air-circulation in enclosures and cabinets containing eletrical/electronic
The Filter Fan Plus series encompasses a new air-flap technology on the air outlet side, thereby reaching an unparalleled high degree of airflow. A unique ratchet mechanism is used for easy installation. It provides safe and secure mounting while guaranteeing a tight seal. Depending on the requirements, there are two optional systems available – the FPI or the FPO system (FPI = "in", FPO = "out"). The FPI system is the more commonly known installation system, where a filter fan located in the lower part of the enclosure draws cleaner, cooler air into the enclosure (airflow direction "In"). This system consists of a filter fan and exhaust filter. On opposite, with the newer FPO system, the filter fan will be located in the upper area of the enclosure to draw warmer air out of the enclosure (airflow direction "Out"). The FPO system consists of an intake filter and exhaust filter fan. The Filter Fan Plus series has been designed for indoor use.
| Axial fan, ball bearing | service life L10 at +104 °F (+40 °C): min. 76,000 h metal impeller |
|---|---|
| Connection | 3-pole clamp for AWG 14 (2.5 mm²), clamping torque 0.8 Nm max. |
| Housing, hood, flaps | plastic UL 94V-0, light grey; UV light resistant according to UL746C (f1) |
| Enclosure cut-out | 11.46 x 11.46" (291 x 291 mm) |
| Mounting frame | 4 built-in ratchet push levers for mounting (6 ratchet stops to accommodate for wall thicknesses Gauge 9 to 19 or 1-4 mm). Additional screw mounting possible if needed 1. |
| Filter mat | G3 acc. to DIN EN 779, average arrestance A
a 84 % |
| Filter material | synthetic mesh with progressive construction, temperature resistant to 212 °F (100 °C), self-extinguishing class F1, moisture resistant to 100 % RH, reusable |
| Operating temperature | 50 Hz: -13 to +131 °F (-25 to +55 °C) 60 Hz: -13 to +95 °F (-25 to +35 °C) |
| Storage temperature | -40 to +158 °F (-40 to +70 °C) |
| Operating/Storage humidity | max. 75 % RH (non-condensing) |
| Protection type/Protection class | IP54 / I (grounded) |
| Environmental rating UL/NEMA | UL TYPE 12 / NEMA 12 |
| Approvals | VDE, UL File No. E234324, EAC |
| Note | other voltages on request |
| STEGO | |
|---|---|
| Product Category | Electronic Cooling Fans |
| Product Number | 01874.0-30 |
| Product Name | Filter Fan Plus- Airflow Direction "IN" Filter Fan FPI 018 291x291mm |
| Application | Industrial/Commercial Fans and Blowers |
| Maximum Air Flow | 220 to 255 SCFM (373 to 433 m³/hr) |
| Nominal Voltage | 230 volts |
| Voltage Range | 230 volts |
| Nominal Power | 95 watts |
