Technical specification scope for centrifugal fan requirement
On April 1, 2026, LONGWELL opened a project to address a requirement for a technical specification for an EC forward centrifugal fan, model LWFE3G180-092DS-02-00. LONGWELL engineering developed and reviewed the specification document (version A0) on April 1, 2026, establishing the official electrical and physical parameters for customer evaluation.
Electrical data and performance parameters
The standard technical specification defines the nominal operating limits and performance parameters for the LWFE3G180-092DS-02-00 fan assembly:
| Parameter Label | Documented Value |
|---|---|
| Nominal Voltage | 220 VAC |
| Voltage Range | 175~264 VAC |
| Frequency | 50/60 Hz |
| Speed | 1090±10% rpm |
| Power | 165 W |
| Rated Current | 1.22 A |
| Maximum Air Flow | 1730 m³/h (1030 CFM) |
| Maximum Static Pressure | 247 Pa |
| Noise Level (LpAin) | 63 dB(A) |
| Operating Temperature Range | -25 to 60 °C |
| Protection Type | IP44 |
Control signals and wiring interface
The unit features speed regulation via a 0–10 VDC control input (VSP voltage range 1.0±0.1 VDC to 9.5±0.2 VDC) and provides speed feedback output rated at 4 pulses per revolution. Standard electrical protections listed in the specification include over-temperature protection, over-current protection, locked-rotor protection, as well as over-voltage and under-voltage protection.
For project evaluation reference, you may access the specification document:
Download Technical Specification PDF
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