Product Description

The Systemair FG 4 (40402A) is a centrifugal inline fan designed for duct installation. The fan uses a galvanized steel housing and is suitable for both residential and commercial use. Designed to be airtight, it incorporates advanced production techniques for tight tolerances.

• Speed-controllable operation
• Built-in thermal overload protection with automatic reset
• Maintenance-free design

Product Highlights

This fan is equipped with backward-curved impeller blades and external rotor motors. The motor is located in the airstream for effective heat dissipation which helps improve reliability and longevity. It can be placed in any position, including outdoors.

Product Information

Standard Information

• Brand: Systemair
• MPN: 40402A

Technical Specifications

• Voltage: 120 V
• Frequency: 60 Hz
• Phase: 1
• Input Power (P1): 20.4 W
• Current: 0.18 A
• Max. Airflow: 139 cfm
• Fan Impeller Speed: 2886 r.p.m.
• Max. Temperature of Transported Air: 140 ¬∞F
• Insulation Class: B
• Enclosure Class, Motor: IP44
• Working Airflow: 69.7 cfm
• Working Static Pressure: 0.515 in.wg.
• Power: 19.5 W
• Speed: 2966 r.p.m.
• SFP: 0.279 W/(cfm)
• Duct Size: 4.00 inch diameter