We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

3G Electric
RFQ CartGet a QuoteSign inSign up
Dayton Centrifugal Roof Supply Fan: 20 in Wheel, 4,930 cfm, 2 3/4 in wc Max., 2 hp - Belt-Drive Filtered Supply Fans with Drive
DaytonBelt-Drive Filtered Supply Fans with Drive

Dayton Centrifugal Roof Supply Fan: 20 in Wheel, 4,930 cfm, 2 3/4 in wc Max., 2 hp

The DAYTON Centrifugal Roof Supply Fan (SKU 857PP7) is a belt-drive filtered supply fan with a 20-inch wheel, delivering 4,930 cfm at a maximum static pressure of 2 3/4 in wc. It features a 2 hp, 208-240V AC, 3-phase…

SKU 3G-OTH-79154

Brand
Dayton
Item
Centrifugal Roof Supply Fan: 20 in Wheel, 4,930 cfm, 2 3/4 in wc Max., 2 hp
Category
Belt-Drive Filtered Supply Fans with Drive
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Dayton
Manufacturer Part Number
857PP7
Type
4,930 cfm, 2 3/4 in wc Max., 2 hp, Roof
AC
208-240V
Ph
3
Number of Speeds
Variable
Nameplate Voltage
208-240V AC
Motor Enclosure Design Broad
Totally Enclosed Motor
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The DAYTON Centrifugal Roof Supply Fan (SKU 857PP7) is a belt-drive filtered supply fan with a 20-inch wheel, delivering 4,930 cfm at a maximum static pressure of 2 3/4 in wc. It features a 2 hp, 208-240V AC, 3-phase motor with variable speeds and a totally enclosed motor enclosure.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Dayton 857PP7 centrifugal roof supply fan used for?

The Dayton 857PP7 is a belt-drive filtered supply fan designed for rooftop installation. It delivers 4,930 cfm at up to 2 3/4 in wc static pressure, making it suitable for commercial or industrial ventilation systems requiring filtered fresh air supply.

What are the specifications of the Dayton 857PP7 roof supply fan?

The Dayton 857PP7 has a 20-inch wheel, 2 hp motor, 208-240V AC, 3-phase power, variable speed, and a totally enclosed motor enclosure. It delivers 4,930 cfm at a maximum static pressure of 2 3/4 in wc. The Dayton brand ensures reliable performance for industrial air movement.

Where to buy the Dayton 857PP7 centrifugal roof supply fan worldwide?

3G Electric supplies the Dayton 857PP7 centrifugal roof supply fan worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install a Dayton belt-drive filtered supply fan?

Install the Dayton 857PP7 on a compatible roof curb, ensuring structural support. Connect 208-240V AC, 3-phase power to the variable-speed motor. Secure the belt drive per Dayton's manual, and verify airflow direction. Always follow local electrical codes and use qualified personnel.

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 belt-drive filtered supply fans with drive. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 21 1/2 in Wheel, 3,680 cfm (MPN 7A568). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 21 1/2 in Wheel, 3,680 cfm (MPN 7A568). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 50 in Wheel, 29,494 cfm, 3 (MPN 7A688). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 208-230/460V AC.
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 50 in Wheel, 29,494 cfm, 3 (MPN 7A688). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 208-230/460V AC.
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 36 in Wheel, 10,966 cfm, 1 (MPN 7A583). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 36 in Wheel, 10,966 cfm, 1 (MPN 7A583). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 14 3/4 in Wheel, 2,866 cfm (MPN 7A557). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 14 3/4 in Wheel, 2,866 cfm (MPN 7A557). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 11 in Wheel, 1,296 cfm, 1 (MPN 7A548). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 11 in Wheel, 1,296 cfm, 1 (MPN 7A548). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 50 in Wheel, 17,245 cfm, 1 (MPN 7A585). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.
Dayton
Centrifugal Downblast Roof Exhaust Fan: Belt Drive, Includes Drive Pack, 50 in Wheel, 17,245 cfm, 1 (MPN 7A585). Key specifications — Assembly: Unassembled; Base Shape: Square; Brand: DAYTON; High-Efficiency Motor: No; For High-Static Pressure Applications: No; Motor Enclosure: Open Dripproof; Mounting Location: Roof; Nameplate Voltage: 115/208-230V AC.

More from Dayton

View all Dayton parts →
Centrifugal Roof Supply Fan: 27 in Wheel, 8,750 cfm, 2 3/4 in wc Max., 5 hp, 380-480V AC, 3 Ph, Roof (MPN 857PP8). Key specifications — Brand: DAYTON; Nameplate Voltage: 380-480V AC; Number of Speeds: Variable; Motor Enclosure Design_Broad: Totally Enclosed Motor.
Dayton
Centrifugal Roof Supply Fan: 27 in Wheel, 8,750 cfm, 2 3/4 in wc Max., 5 hp, 380-480V AC, 3 Ph, Roof (MPN 857PP8). Key specifications — Brand: DAYTON; Nameplate Voltage: 380-480V AC; Number of Speeds: Variable; Motor Enclosure Design_Broad: Totally Enclosed Motor.
Centrifugal Roof Supply Fan: 18 1/4 in Wheel, 3,475 cfm, 2 3/4 in wc Max., 1 hp, 3 Ph, Roof (MPN 857PP6). Key specifications — Brand: DAYTON; Nameplate Voltage: 115/208-230V AC; 277V AC; Number of Speeds: Variable; Motor Enclosure Design_Broad: Totally Enclosed Motor.
Dayton
Centrifugal Roof Supply Fan: 18 1/4 in Wheel, 3,475 cfm, 2 3/4 in wc Max., 1 hp, 3 Ph, Roof (MPN 857PP6). Key specifications — Brand: DAYTON; Nameplate Voltage: 115/208-230V AC; 277V AC; Number of Speeds: Variable; Motor Enclosure Design_Broad: Totally Enclosed Motor.
Centrifugal Roof Supply Fan: 15 in Wheel, 2,105 cfm, 2 3/4 in wc Max., 1 hp, 115/208-230V AC/277V AC (MPN 857PP5). Key specifications — Brand: DAYTON; Nameplate Voltage: 115/208-230V AC; 277V AC; Number of Speeds: Variable; Motor Enclosure Design_Broad: Totally Enclosed Motor.
Dayton
Centrifugal Roof Supply Fan: 15 in Wheel, 2,105 cfm, 2 3/4 in wc Max., 1 hp, 115/208-230V AC/277V AC (MPN 857PP5). Key specifications — Brand: DAYTON; Nameplate Voltage: 115/208-230V AC; 277V AC; Number of Speeds: Variable; Motor Enclosure Design_Broad: Totally Enclosed Motor.
Centrifugal Roof Supply Fan: 12 1/4 in Wheel, 1,705 cfm, 2 3/4 in wc Max., 1 hp, 3 Ph, Roof (MPN 857PP4). Key specifications — Brand: DAYTON; Nameplate Voltage: 115/208-230V AC; 277V AC; Number of Speeds: Variable; Motor Enclosure Design_Broad: Totally Enclosed Motor.
Dayton
Centrifugal Roof Supply Fan: 12 1/4 in Wheel, 1,705 cfm, 2 3/4 in wc Max., 1 hp, 3 Ph, Roof (MPN 857PP4). Key specifications — Brand: DAYTON; Nameplate Voltage: 115/208-230V AC; 277V AC; Number of Speeds: Variable; Motor Enclosure Design_Broad: Totally Enclosed Motor.