Morrill Motors

Morrill Motors is a manufacturer of electric motors and components for commercial refrigeration and HVAC applications. Founded in 1946 and headquartered in Erwin, Tennessee, Morrill is a vertically integrated manufacturer and a brand under Regal Rexnord (acquired by Regal Beloit in 2007). In 1996, Morrill introduced the world's first electronically commutated unit bearing motor, the SSC (Solid State Commutated), establishing the brand as an innovator in energy-efficient commercial refrigeration motor technology.

Product Lines

• PSC Internal Capacitor Unit Bearing Motors: 1 to 9 watt output; commercial refrigeration evaporator and condenser fan duty
• PSC External Capacitor Unit Bearing Motors: 16 to 25 watt output; evaporator and condenser fan duty
• ECM Unit Bearing Motors: 4 to 20 watt, 1450-1550 RPM; 115V, 115/230V, 208-230V; efficiencies up to 68%
• SSC (Solid State Commutated) Motors: World's first ECM unit bearing motor (introduced 1996); compact unit bearing format for direct replacement
• Shaded pole motors, condenser fan motors, replacement mounting kits
• Morrill Engineering (custom motor design) and Morrill Plastics (fan blades, housings)

Why Contractors Specify Morrill Motors

• Pioneer of ECM unit bearing motor technology; 60-plus years in commercial refrigeration
• ECM motors achieve up to 68% efficiency vs. 20-30% for PSC equivalents
• Compact unit bearing design for direct drop-in replacement in display cases, walk-ins, reach-ins
• Vertically integrated manufacturing: motors, engineering, plastic components from one source
• National distribution through HVAC and refrigeration supply houses as a Regal Rexnord brand

How to Choose a Morrill Motor

Match watt rating and voltage to the original motor. 1-9W: PSC Internal Capacitor. 16-25W: PSC External Capacitor. 4-20W ECM replacement: SSC or ECM unit bearing line. Confirm shaft diameter, mounting configuration, voltage (115V, 115/230V, or 208-230V), and frame dimensions before ordering.

Frequently Asked Questions

• What is an SSC motor? Solid State Commutated, the world's first ECM unit bearing motor, introduced by Morrill in 1996. ECM technology in the standard compact unit bearing format.
• What is a unit bearing motor? A motor with a single ball bearing for compact installation in commercial refrigeration evaporator and condenser fans. Allows direct drop-in replacement.
• Efficiency of Morrill ECM motors? Up to 68%, compared to 20-30% for PSC unit bearing motors.
• Who owns Morrill? Regal Rexnord brand (acquired by Regal Beloit in 2007).
• Custom motors available? Yes. Morrill Engineering provides custom motor engineering and design for OEM customers.