Mars mars-10874 Ecm Condenser Fan Motor 1/8-1/3 Hp 208-230V

Product Description

The MARS mars-10874 is a 5.5-inch Azure Digi-Motor, an electronically commutated motor (ECM) designed to replace a wide range of PSC condenser fan motor applications. Rated for 208-230V operation and spanning 1/8 to 1/3 HP, this self-adjusting, multi-horsepower motor runs at 825 or 1075 RPM. It eliminates the need for a run capacitor, simplifying both stocking and installation. A water slinger on the shaft provides basic moisture protection. The motor is UL Recognized and includes a wiring harness with an outboard surge protector built in — a replaceable component that protects the motor investment in the event of a power surge.

The mars-10874 is intended for residential and light commercial HVAC condenser fan applications where a standard PSC motor is being replaced with a higher-efficiency ECM alternative. Installation uses the supplied programming cable to connect the motor to a 115V power source for initial setup, after which the technician selects one of four operating modes before final installation. Shaft-down mounting applies to this unit. HVAC technicians handling condenser unit service are the primary installers for this motor.

Key Features

• Multi-horsepower, self-adjusting ECM — covers 1/8 to 1/3 HP range in a single unit
• No run capacitor required — simplifies replacement and reduces parts inventory
• Four selectable operating modes via supplied programming cable
• Outboard surge protector included in wiring harness — field-replaceable without swapping the motor
• Water slinger on shaft for moisture management in outdoor condenser applications
• Reversible rotation for flexible installation
• UL Recognized

Compatibility

Designed as a direct ECM replacement for standard PSC condenser fan motors in residential and light commercial HVAC systems. The mars-10874 is shaft-down mount only. Wiring connects the same as a standard PSC condenser fan motor without the capacitor.

Installation Notes

Installation should be performed by a qualified HVAC technician. Disconnect and lock out power to the condenser unit before removing the existing motor. Use the supplied programming cable and a 115V power source to select the appropriate operating mode before mounting the motor in the unit. Confirm shaft-down orientation is correct for this model prior to final installation, as shaft-up configurations require a different part number.

Technical Specifications

• Motor Type: ECM (Electronically Commutated Motor)
• Horsepower Range: 1/8 to 1/3 HP (multi-horsepower, self-adjusting)
• Voltage: 208-230V
• Speed: 825/1075 RPM
• Frame Diameter: 5.5 inches
• Rotation: Reversible
• Mounting Orientation: Shaft down only
• Capacitor Required: No
• Certifications: UL Recognized

Standard Information

• Brand: MARS
• Manufacturer Part Number: mars-10874