Description
Mars 11913 Round Start Capacitor Overview
The Mars 11913 is a round start capacitor engineered to deliver the high-torque burst of energy needed to start single-phase motors in residential and commercial HVAC applications. Designed for dependable performance and long service life, this capacitor is a trusted choice for HVAC technicians and contractors.
Key Specifications
- Capacitance Range: 145–175 Microfarad (MFD/µF)
- Voltage Rating: 110/125VAC
- Form Factor: Round
- Type: Start Capacitor
- Brand: Mars (Motor Application and Research Systems)
- SKU: 11913
Features & Benefits
- Wide capacitance range (145–175 MFD) provides flexibility for a variety of motor applications
- Dual voltage rating (110/125VAC) for compatibility across common single-phase circuits
- Round housing design for easy installation in standard capacitor brackets and mounts
- Built to provide the high starting torque required by compressors, fan motors, and other HVAC equipment
- Manufactured by Mars, a trusted name in HVAC electrical components
Typical Applications
- Air conditioning compressors
- Single-phase fan and blower motors
- Heat pump systems
- Refrigeration equipment motors
- General HVAC motor starting applications
Why Choose the Mars 11913?
Start capacitors play a critical role in motor reliability — a failed start capacitor means a motor that won’t start. The Mars 11913 is built to exact electrical tolerances, ensuring your equipment starts smoothly every time. Keep one on your service van as a reliable replacement for a wide range of motor starting applications.







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