Motors and Armatures 12066 Dual Run Capacitor 25/5 Mfd

Product Description

The MOTORS AND ARMATURES 12066 is a dual-section motor run capacitor rated at 25/5 MFD, designed for use in split-system HVAC equipment. Dual run capacitors combine two capacitor sections into a single round unit, providing start and run support for both the compressor and the condenser fan motor simultaneously. This style of capacitor is a standard component in residential and light-commercial air conditioning systems and heat pumps. Licensed HVAC technicians replace these units during compressor hard-start events, fan motor failures, or routine tune-up service when capacitance readings fall outside acceptable tolerance.

The 12066 is suited for residential split-system air conditioners and heat pumps where a single dual-section capacitor serves both the compressor and condenser fan motor circuits. The Base C oval or round base mount configuration simplifies installation in standard condensing unit cabinets. This part is appropriate for service calls involving weak-start symptoms, intermittent cooling loss, or failed fan operation traced to capacitor degradation.

Key Features

• Dual-section design combines 25 MFD and 5 MFD in one unit, reducing parts count in the cabinet
• Base C mounting style for secure, stable installation in condensing unit housings
• Motor run capacitor construction maintains continuous duty rating across normal operating cycles
• Serves compressor and condenser fan motor circuits simultaneously from a single component

Compatibility

Designed as an OEM-style replacement dual run capacitor for residential and light-commercial split-system air conditioners and heat pumps requiring a 25/5 MFD dual-section run capacitor with Base C mounting.

Installation Notes

Capacitor replacement is performed by licensed HVAC technicians. Always disconnect and lock out power to the condensing unit at the disconnect box before servicing capacitors. Capacitors retain a dangerous electrical charge even after power is removed — discharge the capacitor through a resistor before handling. Follow NEC requirements for electrical work inside the unit cabinet and verify the replacement MFD rating matches the motor nameplate specification before installation.

Technical Specifications

• Capacitance: 25/5 MFD
• Configuration: Dual Section
• Type: Motor Run Capacitor
• Mounting Style: Base C

Standard Information

• Brand: MOTORS AND ARMATURES
• Manufacturer Part Number: 12066