Rectorseal M11057 Motor Start Capacitor 30-36 Mfd 330V

Product Description

The RECTORSEAL M11057 is a motor start capacitor rated at 30-36 microfarads (MFD) and 330 volts, designed to provide the starting torque boost that single-phase compressor and fan motors need to initiate rotation. Built with a phenolic composition in a round form factor, this capacitor is engineered for reliable high-cycle service. It operates across a wide temperature range of -40 degrees F to 149 degrees F (corresponding to -40 to 65 degrees C) and supports up to 40 starts per hour, making it well-suited for demanding duty cycles in both residential and commercial applications.

This motor start capacitor is rated for use in residential and commercial air conditioning systems and refrigeration equipment. It is a standard replacement component for single-phase motors that require a start capacitor to achieve proper starting torque. HVAC technicians and refrigeration service professionals install this part when a motor fails to start, starts slowly, or draws excessive current on startup. Its 50/60 Hz compatibility makes it appropriate for standard North American electrical systems.

Key Features

• 30-36 MFD capacitance range accommodates typical motor start requirements
• 330-volt operating voltage rated for standard single-phase motor circuits
• Phenolic composition housing for durability in service environments
• Round shape for straightforward mounting in standard capacitor brackets
• Up to 40 starts per hour supports high-cycle commercial and refrigeration duty
• Wide operating temperature range from -40 to 65 degrees C for varied installation conditions

Compatibility

Recommended for use in residential and commercial AC and refrigeration applications requiring a motor start capacitor rated at 30-36 MFD and 330 volts.

Installation Notes

Installation should be performed by a licensed HVAC technician or refrigeration mechanic. Disconnect and lock out all power to the unit before removing or installing any capacitor — start capacitors can retain a dangerous charge even after power is removed and must be safely discharged before handling. Verify that the replacement MFD rating and voltage rating meet or exceed the original equipment specification before installation. Follow all applicable local electrical codes and manufacturer guidelines during service.

Technical Specifications

• Capacitor Type: Motor Start
• MFD Rating: 30-36 MFD
• Operating Voltage: 330 volts
• Frequency: 50/60 Hz
• Max Operating Temperature: 65 degrees C
• Min Operating Temperature: -40 degrees C
• Starts Per Hour: 40
• Shape: Round
• Terminals: 2
• Composition: Phenolic
• Recommended Use: Residential and Commercial AC and Refrigeration

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: M11057