The Lobisong LBAA4E200S-5MEW-19 is a low-speed, long-life 200mm AC axial fan built for operators who count total cost of ownership rather than unit price. This low-speed axial fan unit is driven by a single-phase 220V 50Hz motor, turning a Ø200mm impeller at just 1,370 rpm to deliver 464 m³/h at 50 dB(A). IP44 sealing, Class F insulation fan and -40°C to +60°C operating window let this low-speed axial fan unit run for years with no maintenance, no capacitor failures and no surprise replacements. Choose this low-speed axial fan unit when replacement cost and energy spend matter more than peak CFM.

Speed is the hidden lever in fan economics. Bearing life scales inversely with rotational speed; grease degradation, ball fatigue and raceway wear all accelerate as rpm climbs. By running at 1,370 rpm instead of the 2,400–3,000 rpm common in compact axial fans, this low-speed axial fan unit puts far less stress on its sealed ball bearings. The trade-off is airflow: 464 m³/h rather than 1,000+, but for residential fresh-air systems, TCO-optimized ventilation fan and greenhouse exchange, that volume is exactly the right match. Oversizing a fast fan wastes energy and shortens life; matching speed to load is the TCO move that makes this low-speed axial fan unit pay back over years rather than months.

The single-phase 220V winding is sized to 50 W and 0.21 A — deliberately modest. A smaller motor runs cooler, has lower copper losses and leaves more thermal margin inside the enclosure. Class F insulation permits 155°C hotspot, but the low-speed axial fan unit will never approach it at 50 W. The impeller is cold-rolled sheet, balanced to G6.3 per JB/T8686, so panel resonance stays low enough for quiet residential mounting. IP44 seals out dust and splashes, and the -40°C start-up fan means this low-speed axial fan unit will come alive in unheated greenhouses and cold-climate telecom cabinets where cheaper fans simply will not turn.

• 1,370 rpm low-speed operation: Slower tip speed cuts bearing wear, vibration and noise, extending service life to 30,000 h L10.

• Single-phase 220V 50Hz: Runs directly from standard mains — no three-phase wiring, no VFD, no transformer needed.

• 464 m³/h at 50 dB(A): Matched airflow for residential and light-commercial loads without over-sizing.

• -40°C to +60°C wide-temperature rating: Starts and runs in unheated greenhouses, cold-climate cabinets and seasonal outdoor shelters.

• IP44 sealing: Dust- and splash-resistant for humid, dusty or condensation-prone environments.

• 50 W ultra-low consumption: Lower energy bill than over-speed alternatives, with 0.21 A branch loading.

Total cost of ownership (TCO) has three lines: purchase, energy and replacement. This long life axial fan optimizes all three. The purchase price sits in a mid-range bracket; the 50 W draw trims annual electricity spend; and the 30,000-hour L10 bearing life pushes the first replacement years out. At continuous 24/7 duty, 30,000 hours is roughly three and a half years of runtime — but because this low-speed axial fan unit runs at 1,370 rpm rather than 2,800, actual service intervals often extend well beyond the rated L10 figure. Grease shearing and ball spin rate are the dominant wear mechanisms, both of which fall steeply with speed, which is why a low-speed axial fan unit outlasts faster alternatives.

The wide-temperature rating deserves attention. Most 220V single-phase axial fans bottom out at -10°C or -20°C because their bearing grease stiffens and their capacitor loses capacitance. This low-speed axial fan unit specifies -40°C start-up: the grease, the magnet wire and the housing polymers are all rated for that point. In agricultural greenhouses, unheated stairwells and Nordic telecom cabinets, that rating is the difference between a working ventilation season and a January service call. IP44 industrial fan keeps humidity and dust out without the cost of a full IP54 wash-down build, which is the right trade for a low-speed axial fan unit serving clean, dry environments.

• Residential fresh-air systems: 464 m³/h and 50 dB(A) for ductless room ventilation in apartments and villas.

• TCO-optimized ventilation fan: Quiet ceiling or wall-mount airflow in offices, retail and small clinics.

• Light industrial cooling: Low-speed thermal management for control cabinets, printers and test benches.

• Agricultural greenhouse ventilation: -40°C start-up and IP44 sealing for year-round humidity and temperature control.

• Cold-climate telecom cabinets: Reliable winter start-up in unheated shelters where cheaper fans fail.

For OEMs and installers, this low-speed axial fan unit wins on lifetime math. The 50 W draw, 30,000-hour bearing life and single-phase 220V install point each trim a small recurring cost; multiplied across a multi-hundred-unit project, those trims compound into real savings. There is no capacitor to stock, no three-phase cable to pull, and no winter service call because the low-speed axial fan unit refused to start. TCO, not unit price, is the decision metric here, and that is where this low-speed axial fan unit leads.

Q1: Why does this 200mm axial fan move only 464 m³/h when other 200mm units move 1,000?

A: It runs at 1,370 rpm on purpose. Lower rpm cuts bearing wear, vibration and noise — the trade-off is airflow. For residential, greenhouse and light-commercial loads, 464 m³/h is the correct match; oversizing a fast fan wastes energy and shortens life.

Q2: Will this fan actually start at -40°C?

A: Yes. Bearing grease, magnet wire and housing materials are all rated for -40°C start-up, which is why this wide-temperature axial fan is specified for unheated greenhouses, cold-climate telecom cabinets and Nordic outdoor shelters.

Q3: Do I need a three-phase supply or a VFD to run this fan?

A: No. It is a true single-phase 220V 50Hz fan rated at 50 W and 0.21 A. Connect it to standard mains — no three-phase wiring, no transformer, no variable-frequency drive required.