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Dayton 2RB61 downblast roof exhaust fan belt drive 11 inch wheel square base 19 inch assembled motor included

Dayton

Dayton 2RB61 Downblast Vent Belt Drive 11 In 60 Hz

SKU CH-RM52-7V8PC MPN 2RB61

Centrifugal downblast roof exhaust fan with 11 in wheel, belt drive, 1/4 hp motor, and 296 cfm airflow at zero static pressure

  • TypeDrain Components
  • 11-inch wheel moves 1,296 cfm at zero static pressure
  • Belt drive with included motor and drive package simplifies installation
  • 1/4 hp motor runs on 115/208-230 V single-phase power
  • Square 19-inch base fits standard roof curbs
  • Rated for clean-air exhaust up to 1 in wc static pressure

Product Identity

The Dayton 2RB61 is a centrifugal downblast roof exhaust fan built for commercial and industrial ventilation. It arrives fully assembled with belt-drive construction and an included motor rated at 1/4 hp for straightforward installation.

Installation Requirements

Verify that the roof opening matches the 19 in square base dimensions before ordering. Confirm the available supply voltage aligns with the 115/208-230V AC single-phase nameplate rating and that the application involves clean air only.

Thermal and Power Profile

The unit delivers 1,296 cfm at .000 in static pressure with a maximum static pressure capability of 1 in wc. Belt-drive operation and the 1/4 hp motor provide consistent airflow for standard exhaust duties without high-static-pressure demands.

Highlights

  • 11-inch wheel moves 1,296 cfm at zero static pressure
  • Belt drive with included motor and drive package simplifies installation
  • 1/4 hp motor runs on 115/208-230 V single-phase power
  • Square 19-inch base fits standard roof curbs
  • Rated for clean-air exhaust up to 1 in wc static pressure

Specifications

TypeDrain Components
BrandDayton
Model2RB61

Questions about this item

What does the Dayton 2RB61 come with, and what must I source separately?

The unit ships assembled with the belt drive, motor and drive package already installed. You will need to supply roof mounting hardware, duct connections and a 115/208-230 V single-phase power feed.

The specs list only one configuration — how do I decide if this 11 in wheel is right for my roof?

The 11 in wheel delivers 1,296 cfm at .000 in static pressure and handles up to 1 in wc, making it suited for clean-air exhaust where moderate flow and pressure are required.

What does the 1,296 cfm rating mean once the fan is ducted on a real roof?

That figure is measured at zero static pressure; actual airflow will drop as ductwork, filters or roof curbs add resistance, so size the system to stay within the 1 in wc maximum static pressure.

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