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Dayton Clean Air Direct-Drive Fan, Roof Mount, 4,247 cfm - Clean Air Direct-Drive Fans
DaytonClean Air Direct-Drive Fans

Dayton Clean Air Direct-Drive Fan, Roof Mount, 4,247 cfm

The Dayton Axial Downblast Roof Supply Fan (SKU 3G-OTH-77861) is a clean air direct-drive fan with an 18-inch blade. It features a standard-efficiency, totally enclosed motor with one speed, delivers 4,247 cfm, and…

SKU 3G-OTH-77861

Brand
Dayton
Item
Clean Air Direct-Drive Fan, Roof Mount, 4,247 cfm
Category
Clean Air Direct-Drive Fans
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Dayton
Type
Direct Drive, Includes Drive Pack, 4,247 cfm, TEAO, 3
Motor Efficiency
Standard-Efficiency Motor
Number of Speeds
1
Mounting Location
Roof
Motor Enclosure Design Broad
Totally Enclosed Motor

Technical Documents

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Dayton Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dayton Axial Downblast Roof Supply Fan (SKU 3G-OTH-77861) is a clean air direct-drive fan with an 18-inch blade. It features a standard-efficiency, totally enclosed motor with one speed, delivers 4,247 cfm, and is designed for roof mounting. The unit includes a drive pack.

Frequently Asked Questions

What is the Dayton Axial Downblast Roof Supply Fan used for?

The Dayton Axial Downblast Roof Supply Fan () is used for clean air supply in commercial and industrial roof-mounted ventilation systems. It delivers 4,247 cfm of airflow for general exhaust or intake applications where a direct-drive, standard-efficiency motor is suitable.

What are the specifications of the Dayton fan?

The Dayton is an axial downblast roof supply fan with an 18-inch blade, direct drive, and a standard-efficiency totally enclosed motor. It operates at one speed, delivers 4,247 cfm, and includes a drive pack. The motor enclosure is TEAO, designed for roof mounting.

Where to buy the Dayton fan worldwide?

You can source the Dayton axial downblast roof supply fan through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time.

How to install a Dayton downblast roof supply fan?

Install the Dayton fan on a roof curb or structural support, ensuring proper sealing to prevent leaks. Connect the direct-drive motor to a dedicated power supply per local codes. Secure the fan housing and verify blade clearance before operation. Consult the manual for torque specs.

Used in

Common applications for Dayton
HVAC ventilation — DAYTON centrifugal upblast roof exhaust fans (SKU 7M7U3) for kitchen exhaust systems
Mechanical power transmission — DAYTON HTD timing pulleys (SKU 404GV0) for conveyor belt drives
Process water handling — DAYTON self-priming centrifugal pumps (SKU 2ZXT4) for dewatering or transfer
Roofing and building services — DAYTON fixed ventilated roof curbs (SKU 4HX59) for filtered supply fan installations
Material handling — DAYTON latch assemblies (SKU 2KEN4) for electric chain hoist hook safety
Industrial air movement — DAYTON downblast roof exhaust fans (SKU 3HFL9) for clean air exhaust in manufacturing plants

Dayton Products

3G Electric supplies Dayton clean air direct-drive fans. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
This direct-drive fan is designed for roof-mounted supply ventilation in industrial and commercial buildings. It delivers 5,742 cfm with a single-speed, standard-efficiency totally enclosed motor. The unit includes a drive pack and is suitable for bringing fresh outdoor air into facilities
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This direct-drive fan is designed for roof-mounted supply ventilation in industrial and commercial buildings. It delivers 5,742 cfm with a single-speed, standard-efficiency totally enclosed motor. The unit includes a drive pack and is suitable for bringing fresh outdoor air into facilities
Direct-drive axial downblast roof supply fan delivering 5,355 cfm. Includes a drive pack and a standard-efficiency totally enclosed motor with one speed. Designed for roof-mounted clean air supply or exhaust in commercial and industrial ventilation systems
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Direct-drive axial downblast roof supply fan delivering 5,355 cfm. Includes a drive pack and a standard-efficiency totally enclosed motor with one speed. Designed for roof-mounted clean air supply or exhaust in commercial and industrial ventilation systems
This direct-drive fan is assembled with a square base for roof mounting. It includes a drive package and features a totally enclosed air-over (TEAO) motor with standard efficiency. The single-speed unit delivers 4,578 cfm exhaust airflow using an 18-inch blade, operating at 208-230/460V AC. Suitable for clean air exhaust applications in commercial or industrial settings
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This direct-drive fan is assembled with a square base for roof mounting. It includes a drive package and features a totally enclosed air-over (TEAO) motor with standard efficiency. The single-speed unit delivers 4,578 cfm exhaust airflow using an 18-inch blade, operating at 208-230/460V AC. Suitable for clean air exhaust applications in commercial or industrial settings
This direct-drive fan is assembled with a square base for roof mounting. It includes a drive package and a 1-speed, standard-efficiency totally enclosed air-over motor rated at 208-230/460V AC. The 20-inch blade delivers 5,943 cfm of exhaust airflow at 0.000 in SP, suitable for general clean-air ventilation in industrial or commercial buildings
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This direct-drive fan is assembled with a square base for roof mounting. It includes a drive package and a 1-speed, standard-efficiency totally enclosed air-over motor rated at 208-230/460V AC. The 20-inch blade delivers 5,943 cfm of exhaust airflow at 0.000 in SP, suitable for general clean-air ventilation in industrial or commercial buildings
This direct-drive fan is assembled with a square base for roof mounting. It includes a drive package and features a totally enclosed air-over motor with standard efficiency, operating at 208-230/460V AC with one speed. The fan delivers 6,042 cfm at 0.000 in SP, suitable for clean air exhaust applications
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This direct-drive fan is assembled with a square base for roof mounting. It includes a drive package and features a totally enclosed air-over motor with standard efficiency, operating at 208-230/460V AC with one speed. The fan delivers 6,042 cfm at 0.000 in SP, suitable for clean air exhaust applications
Centrifugal downblast roof exhaust fan with direct drive, assembled with an 18-inch wheel and square base. Includes drive package. Open dripproof, standard-efficiency motor, single speed, 208-230/460V AC. Exhaust airflow 4,433 cfm. For general clean-air ventilation in commercial or industrial roof-mounted applications
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Centrifugal downblast roof exhaust fan with direct drive, assembled with an 18-inch wheel and square base. Includes drive package. Open dripproof, standard-efficiency motor, single speed, 208-230/460V AC. Exhaust airflow 4,433 cfm. For general clean-air ventilation in commercial or industrial roof-mounted applications

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This direct-drive axial downblast roof exhaust fan is designed for industrial and commercial clean-air applications. It features an 18-inch blade, delivers 2,982 cfm exhaust airflow, and includes a drive package. The fan is assembled with a square base for roof mounting, has an open air over motor enclosure, and operates on 115V AC with a single speed
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This direct-drive axial downblast roof exhaust fan is designed for industrial and commercial clean-air applications. It features an 18-inch blade, delivers 2,982 cfm exhaust airflow, and includes a drive package. The fan is assembled with a square base for roof mounting, has an open air over motor enclosure, and operates on 115V AC with a single speed
This direct-drive centrifugal downblast roof exhaust fan is assembled with a square base and an 11-inch wheel. It delivers 571 cfm at 0.000 in SP and operates on 115V AC with a single-speed, standard-efficiency open-air-over motor. The unit includes a drive package and is intended for general clean-air ventilation in roof-mounted applications, suitable for exhausting heat, odors, and stale air
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This Dayton direct-drive clean air fan is assembled with a square base and includes a drive package. It features an 8-inch wheel and an open dripproof, standard-efficiency motor operating at 115V AC with three speeds. Designed for roof mounting, it delivers exhaust airflow up to 1,999 cfm at low static pressure, suitable for general ventilation in commercial or industrial buildings to remove heat, odors, or stale air
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This Dayton direct-drive clean air fan is assembled with a square base and includes a drive package. It features an 8-inch wheel and an open dripproof, standard-efficiency motor operating at 115V AC with three speeds. Designed for roof mounting, it delivers exhaust airflow up to 1,999 cfm at low static pressure, suitable for general ventilation in commercial or industrial buildings to remove heat, odors, or stale air
This direct-drive clean air fan is assembled with a square base for roof mounting. It features a 14 3/4 in wheel and a 3/4 hp electronically commutated high-efficiency motor with variable speeds, operating at 115V AC. The unit includes a drive package and delivers exhaust airflow from 2,000 to 4,999 cfm at both 0.000 in SP and 0.500 in SP. Suitable for general ventilation in commercial and industrial buildings
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This direct-drive clean air fan is assembled with a square base for roof mounting. It features a 14 3/4 in wheel and a 3/4 hp electronically commutated high-efficiency motor with variable speeds, operating at 115V AC. The unit includes a drive package and delivers exhaust airflow from 2,000 to 4,999 cfm at both 0.000 in SP and 0.500 in SP. Suitable for general ventilation in commercial and industrial buildings
This Dayton clean air direct-drive fan is assembled with a square base and includes a drive package. It features an 8-inch wheel, a shaded-pole motor with open air over enclosure, and operates at 115V AC with three speeds. Designed for roof-mounted exhaust ventilation, it delivers up to 495 cfm and is suitable for low static pressure applications
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This Dayton clean air direct-drive fan is assembled with a square base and includes a drive package. It features an 8-inch wheel, a shaded-pole motor with open air over enclosure, and operates at 115V AC with three speeds. Designed for roof-mounted exhaust ventilation, it delivers up to 495 cfm and is suitable for low static pressure applications
Direct-drive axial fan for roof-mounted clean air supply or exhaust. Includes drive pack. Features a standard-efficiency open dripproof motor, single speed, delivering 5355 cfm. Suitable for general ventilation in industrial and commercial buildings
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Direct-drive axial fan for roof-mounted clean air supply or exhaust. Includes drive pack. Features a standard-efficiency open dripproof motor, single speed, delivering 5355 cfm. Suitable for general ventilation in industrial and commercial buildings
Direct-drive axial downblast roof exhaust fan for industrial and commercial clean air applications. Includes drive package, 24 in blade, 5,091 cfm exhaust airflow at 0.000 in SP. Open Air Over motor enclosure, standard-efficiency single-speed motor rated 115/230V AC. Square base for roof mounting
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Direct-drive axial downblast roof exhaust fan for industrial and commercial clean air applications. Includes drive package, 24 in blade, 5,091 cfm exhaust airflow at 0.000 in SP. Open Air Over motor enclosure, standard-efficiency single-speed motor rated 115/230V AC. Square base for roof mounting
This direct-drive centrifugal fan is assembled with a square base and includes a drive package. It features a 14 3/4 in wheel and a 3/4 hp electronically commutated, open dripproof motor operating at variable speeds on 208-230V AC. Designed for roof mounting, it delivers exhaust airflow from 2,000 to 4,999 cfm at static pressures up to 0.500 in SP, suitable for general ventilation in clean air applications where high static pressure is not required
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This direct-drive centrifugal fan is assembled with a square base and includes a drive package. It features a 14 3/4 in wheel and a 3/4 hp electronically commutated, open dripproof motor operating at variable speeds on 208-230V AC. Designed for roof mounting, it delivers exhaust airflow from 2,000 to 4,999 cfm at static pressures up to 0.500 in SP, suitable for general ventilation in clean air applications where high static pressure is not required