The Lobisong LBAA2D185S-7MNW-03 is a three-phase industrial axial fan engineered for non-stop factory-floor service. 3 phase industrial axial fan is wound for 380V 50Hz factory fan and rated IP54 continuous duty fan, so 3 phase industrial axial fan delivers 670 m³/h at 2,400 rpm while drawing only 55 W and 0.15 A. Class F insulation, IP54 protection and G6.3 balancing keep the 3 phase industrial fan stable across -30°C to +60°C — a dependable choice for production lines, switchgear rooms and 24/7 HVAC loops.

Three-phase induction motors start hard and run cool — that is why 3 phase industrial axial fan is built for continuous cycles rather than intermittent duty. A single-phase axial fan must phase-shift its auxiliary winding with a run capacitor, the weakest link behind millions of cabinet failures in the field. The LBAA2D185S-7MNW-03 3 phase industrial fan omits that consumable entirely: the rotating field is generated directly across three lines, so torque develops on switch-on without a starting relay, a centrifugal switch or a film capacitor to dry out. At 0.15 A and 55 W, the winding of 3 phase industrial axial fan stays thermally headroom-rich, and Class F insulation fan permits 155°C hotspot well above the 60°C ambient ceiling.

The Ø185mm cold-rolled sheet impeller is balanced to G6.3 per JB/T8689, which is the vibration band expected in continuous-duty industrial equipment rather than quiet office appliances. At 2,400 rpm the disc sweeps enough area to push 670 m³/h, yet the acoustic footprint stays at 51 dB(A) — audible, not intrusive — because the tip speed is moderate and the blade count was selected to avoid resonance with mounting panels. IP54 sealing means dust and occasional wash-down splash will not migrate into the bearing cavity of 3 phase industrial axial fan. Sealed, permanently lubricated ball bearings are specified to L10 30,000 hours, and S1 rated cooling fan explicitly allows the 3 phase industrial fan to run 24/7 without thermal cycling penalties.

• 380V 50Hz factory fan: No run capacitor and no start relay — the failure-prone consumable in single-phase axial fans is eliminated outright.

• S1 continuous-duty rating: Rated for non-stop, unattended operation across the full -30°C to +60°C ambient range for production-line 24/7 cycles.

• 670 m³/h at 2,400 rpm: A Ø185mm impeller moves real industrial volume at only 55 W and 0.15 A, so branch-circuit loading stays low.

• IP54 ingress sealing: Dust-protected and splash-resistant for switchgear rooms, refrigeration plants and outdoor equipment shelters.

• Class F insulation (155°C): Thermal headroom keeps winding temperatures in a safe band even when ambient hits +60°C.

• 30,000 h L10 bearing life: Maintenance-free ball bearings with G6.3 balancing (JB/T8689) let you plan on a multi-year service interval.

A continuous-duty axial fan is a different engineering brief from a spot-cooling fan. Spot coolers run for minutes at a time and cool between cycles; S1-rated equipment runs until the plant shuts down. That distinction changes bearing grease, magnet wire temperature rise, capacitor choice and structural fatigue. On this 50Hz axial fan, the motor was sized so that winding temperature rise stays well below the 155°C Class F ceiling even at 40°C ambient — a margin that accumulates as years of extra life for the 3 phase industrial fan.

Why three-phase rather than a beefier single-phase motor? The answer is cost of ownership. A three-phase winding distributes current across three conductors, so copper losses are lower per watt; the absence of a run capacitor removes a consumable that typically fails first in field returns; and starting torque is high enough to drive the impeller against partial restriction. Pair that with IP54 sealing and G6.3 balancing, and 3 phase industrial axial fan behaves the same in month 12 as in month 1 — exactly what a production line needs.

• Factory production-line cooling: Mount along conveyors, welding stations and packaging machines where 24/7 airflow prevents drive derating.

• Switchgear and MCC rooms: IP54 ventilation for low-voltage switchboards, variable-frequency drives and capacitor banks that must never trip.

• Industrial HVAC and make-up air: S1-duty supply/exhaust fans in rooftop units and AHU coils on 50Hz three-phase networks.

• Refrigeration and cold-storage auxiliaries: 670 m³/h for compressor-rack rooms and evaporator bays where heat rejection never stops.

• Telecom and battery rooms: Steady thermal management for rectifiers, UPS systems and VRLA battery strings on continuous plant power.

For OEMs and EPC contractors, specifying 3 phase industrial axial fan standardizes the BOM on a 50Hz three-phase platform already present in most Chinese and EU plants. The absence of a run capacitor removes a warranty-return vector; the 30,000-hour L10 life stretches replacement intervals; and the 55 W draw trims annual energy cost compared with oversized blowers. 3 phase industrial axial fan SKU covers production-line, HVAC and switchgear applications, so spares inventory shrinks and field replacement crews need only one part number on the truck.

Q1: What does the S1 duty rating actually mean for 24/7 operation?

A: S1 (continuous duty) means the motor can run indefinitely at rated output without cooling-off cycles. Winding temperature rise, bearing grease and insulation are all validated against non-stop operation, so this 50Hz axial fan is engineered for months of continuous runtime rather than intermittent spot cooling.

Q2: Why is three-phase better than single-phase for a production-line fan?

A: Three-phase motors need no start capacitor or auxiliary winding — the single most common failure point in single-phase axial fans. They also start with higher torque, run smoother and draw less current per watt, which lowers heat, vibration and warranty risk on 24/7 lines.

Q3: What voltage range does this 380V industrial axial fan actually accept?

A: Rated at 380V three-phase 50Hz, it operates across 342–418V. That window absorbs plant voltage sags during heavy motor starts and long cable runs, so normal grid fluctuation will not stall the fan or shorten its life.