Description
The Mars 11945 is a heavy-duty round start capacitor engineered to deliver the high-torque starting boost that single-phase HVAC motors demand. With a capacitance range of 88–108 microfarads and a dual voltage rating of 220/250VAC, this capacitor is a versatile replacement solution for a wide range of residential and light commercial air conditioning, heat pump, and refrigeration equipment.
Start capacitors provide the temporary surge of electrical energy needed to get a motor spinning from a standstill. Once the motor reaches operating speed, the start capacitor is switched out of the circuit — making quality construction and consistent capacitance critical to reliable, long-term performance. The Mars 11945 delivers both.
Key Specifications
- SKU: 11945
- Brand: Mars
- Capacitance Range: 88–108 Microfarads (MFD/µF)
- Voltage Rating: 220/250VAC
- Form Factor: Round
- Type: Start Capacitor
Features & Benefits
- Wide capacitance tolerance (88–108 MFD) allows compatibility across multiple motor applications
- Dual voltage rating (220/250VAC) provides installation flexibility
- Round housing design for easy drop-in replacement in standard capacitor mounts
- Built to handle the high-current demands of motor starting cycles
- Suitable for use in air conditioners, heat pumps, refrigeration units, and other single-phase motor-driven equipment
Application
The Mars 11945 is ideal for HVAC technicians performing capacitor replacements on compressors, condenser fan motors, and other single-phase motors that require a start capacitor. Its broad MFD range and dual voltage rating make it a practical stocking item for service vans and supply houses alike.







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