Description
Nominal Voltage | DC5V (4.0 – 5.5 VDC); DC12V (6 – 13.8 VDC); DC24V (12 – 27.6 VDC); EC (115V, 230V), AC 115V, 230V |
Dimensions | 50x50x25 mm |
Nominal Diameter Ranges | 25mm – 254mm |
Specifications Options | AS, RD, FG, PWM, Temperature Control, IP56, IP68 |
Materials | Frame: Plastic (UL94-VO) Impeller: Plastic (UL94-VO) |
Mainly Applications | · Electronic cabinet cooling · Ventilation cooling system · AutoMotive · Server CCTV · Air-cooling system · Pharmaceutical/biological control systems · Computer room air conditioning (CRAC) systems -etc |

Speed Control: PWM VSP Temperature control fixes speed with intermittent pressure.
Out Signal: FG RD LD
Insulation Resistance: 10 MΩ/500V DC
Dielectric Strength: 2 min/500 V AC/5 mA

A: The frequency shall be able to accept 25 kHz; B: At a 0% duty cycle, the rotor will spin to a stop.
C: At 100% duty cycle, the rotor will spin at maximum speed.
D: With the control signal lead disconnected, the fan will spin at maximum speed.
C: At 100% duty cycle, the rotor will spin at maximum speed.
D: With the control signal lead disconnected, the fan will spin at maximum speed.












Longwell is a manufacturer of HVAC fans, blowers, motors, and components, as well as water purifier pumps and home appliances, established in 1990 and equipped with highly advanced testing and production facilities.
Manufacturing companies typically purchase Longwell Co., Ltd. as OEM solutions or as aftermarket replacement parts for HVAC, FCU, FFU, and AHU systems. Customers can select from the large variety of preexisting products developed by Longwell, including but not limited to:
As a direct source manufacturer with robust 0-to-1 R&D capabilities, Longwell goes beyond standard models. We provide comprehensive OEM and ODM customization for all types of industrial fans, motors, and specialized accessories. Partnering directly with our factory ensures you receive highly competitive pricing, rigorous quality control, and rapid delivery cycles tailored exactly to your project specifications.
Ready to discuss your custom project? Connect with our engineering and sales team today:
● Contact Us Now: Click Here
● Email: sales@longwellfans.com
● WhatsApp: +86-18358274663





















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