MARS 11950 Start Capacitor

For professional contractors servicing domestic or commercial refrigeration and air conditioning systems, the MARS 11950 Start Capacitor is a reliable, high-performance component designed for heavy-duty motor starting applications. Rated for 161-193 Microfarad (MFD) and 220/250Vac, this round electrolytic capacitor provides the essential high-torque surge required to initiate compressor and fan motor operation under demanding load conditions. Constructed with a hermetically sealed black bakelite case, the MARS 11950 is engineered to withstand moisture, oil, and grease, ensuring long-term stability in harsh mechanical environments. This unit features standard 1/4 inch dual-blade quick-connect terminals for rapid installation during a critical AC repair or system overhaul. Operating within a temperature range of -40°C to 65°C, this motor start capacitor ensures consistent performance across diverse climates, making it a critical stock item for any technician’s truck to address an air conditioner not cooling or a stalled motor.

• High Torque Starting: Optimized for providing the intensive boost necessary for compressors and motors to overcome initial resistance.
• Environmental Protection: The phenolic case construction ensures resistance to grease and moisture common in HVACR environments.
• Universal Compatibility: Standard 1/4" dual quick-connect terminals allow for easy replacement of most 161-193 MFD capacitors in this voltage class.
• Compact Round Form Factor: Measures approximately 3-3/8" in height and 1-3/4" in diameter, fitting standard mounting brackets in compact electrical housings.

• Can I use this 250V capacitor to replace a 220V start capacitor? Yes, the 220/250Vac rating is compatible with lower voltage applications; always ensure the MFD range matches your motor's specific requirements.
• What are the signs that my motor start capacitor is failing? Common indicators include a humming motor that fails to turn, tripped breakers upon startup, or visible bulging and leaking from the capacitor casing.
• Is this compatible with 50Hz and 60Hz systems? Yes, this MARS capacitor is engineered for use in standard AC electrical systems across typical industrial frequencies.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.