Rectorseal m11051 Motor Start Capacitor 189-227 Mfd 250/220V

Product Description

The RECTORSEAL m11051 is a round motor start capacitor rated at 189-227 microfarads (MFD) and 250/220 volts, designed to provide the high starting torque required to get compressor and fan motors running in AC and refrigeration systems. Built with a phenolic composition housing, this capacitor handles a wide operating temperature range from -40 degrees F to 149 degrees F, making it suitable for installations that see temperature extremes. It supports both 50 Hz and 60 Hz applications. HVAC technicians and refrigeration service pros install this part as a direct replacement when a failed or weak start capacitor is preventing motor startup.

The m11051 is rated for residential and commercial air conditioning and refrigeration applications. Its broad MFD range of 189-227 allows it to cover multiple motor replacement scenarios within a single capacitor. With a round shape and two-terminal connection, it fits standard capacitor mounting brackets found in condenser units, heat pumps, and refrigeration compressor cabinets. Up to 20 starts per hour makes it appropriate for systems with frequent cycling demand in commercial refrigeration or multi-stage cooling equipment.

Key Features

• 189-227 MFD rating covers a wide range of motor start requirements
• Rated for 250/220 volts, compatible with common residential and commercial supply voltages
• Phenolic composition housing for durability in varied environments
• Supports 50/60 Hz systems for broad application flexibility
• Rated for up to 20 starts per hour to handle frequent-cycle applications
• Round shape with 2-terminal connection for standard bracket fitment

Compatibility

Designed as an OEM-style replacement motor start capacitor for residential and commercial air conditioning and refrigeration systems requiring a 189-227 MFD, 250/220-volt round start capacitor.

Installation Notes

Motor start capacitors are installed by licensed HVAC technicians or qualified refrigeration service professionals. Always disconnect and lock out power to the unit before handling capacitors, as they store a charge and must be safely discharged prior to removal. Verify the replacement MFD rating and voltage rating match the motor nameplate requirements before installation. Follow applicable NEC guidelines and local codes when servicing capacitors in electrical enclosures.

Technical Specifications

• Capacitor Type: Motor Start
• MFD Rating: 189-227 MFD
• Operating Voltage: 250/220 volts
• Frequency: 50/60 Hz
• Shape: Round
• Terminals: 2
• Composition: Phenolic
• Maximum Rated Temperature: 65 degrees C
• Minimum Rated Temperature: -40 degrees C
• Starts Per Hour: 20
• Recommended Use: Residential and Commercial AC and Refrigeration

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: m11051