Mars M32781 Combination Starter 115V 1/12-1/5 Hp

Product Description

The MARS M32781 is a combination starter that integrates a relay, capacitor, and overload protector into a single assembly for single-phase PSC and split-phase motors. Rated for 115 volts and covering motor sizes from 1/12 HP to 1/5 HP, this unit provides starting assistance and running protection without requiring separate components. It is used in residential and light commercial HVAC and refrigeration equipment where a compact, all-in-one motor protection and starting solution is required. Licensed HVAC technicians and refrigeration service pros install this part during motor replacements or when restoring failed starting components on smaller compressors and fan motors.

The M32781 is suited for 115-volt single-phase motors rated between 1/12 HP and 1/5 HP, making it a practical fit for window air conditioners, small refrigeration compressors, fractional-horsepower condenser fan motors, and similar equipment. Its integrated overload function trips on sustained overcurrent conditions, protecting the motor windings. When a separate relay, capacitor, and overload are worn or mismatched, this combination unit restores correct motor operation in a single swap.

Key Features

• Combines relay, run capacitor, and overload protector in one assembly
• Rated for 115-volt single-phase applications
• Covers motors from 1/12 HP to 1/5 HP
• Integrated overload protection trips on overcurrent to prevent motor winding damage
• Compact design reduces component count and simplifies installation

Compatibility

Designed as an OEM-style replacement combination starter for 115-volt single-phase fractional-horsepower motors in residential and light commercial HVAC and refrigeration equipment rated between 1/12 HP and 1/5 HP.

Installation Notes

Installation should be performed by a qualified HVAC or refrigeration technician. Disconnect and lock out all power to the equipment before removing the existing relay, capacitor, or overload assembly. Verify motor voltage and horsepower rating match the M32781 specifications before wiring. Follow all applicable NEC requirements and equipment manufacturer wiring diagrams when connecting terminals.

Technical Specifications

• Voltage: 115 volts
• Motor HP Range: 1/12 to 1/5 HP
• UPC: 685744327813

Standard Information

• Brand: MARS
• Manufacturer Part Number: M32781