MARS 11045 Start Capacitor

The MARS 11045 Start Capacitor is a standard-service solution for single-phase motor applications, providing the high starting torque necessary for compressors and fan motors in HVACR systems. This 88-108 microfarad 220/250Vac round start capacitor is field-proven for its durability, featuring a rigid phenolic case designed to withstand the high-temperature environments common in professional mechanical rooms. Engineered for duty cycles up to 30 starts per hour, this unit facilitates a precise phase shift to overcome initial inertia during startup, protecting internal motor windings from excessive heat and prolonged locked-rotor current. The compact form factor allows for seamless integration into existing control boxes, and it serves as a direct replacement for many OEM parts, including the P281-8805. Reliability is further enhanced by its hermetic-style sealing, which shields the internal electrolytic plates from moisture and debris, ensuring consistent performance across 50/60 Hz cycles.

• Universal HVACR Compatibility: Directly replaces widely used industry part numbers, including the JARD 11045 and various Carrier-spec 88-108 MFD components.
• High Torque Output: Rated for 220/250VAC to provide the necessary boost for high-head-pressure startups in commercial and residential air conditioning.
• Industrial Build Quality: Encased in a rugged black Bakelite/phenolic housing that resists chemical exposure and mechanical stress.
• Standardized Terminals: Features dual quick-connect terminals for fast, secure field installation by service technicians.

Can I use the MARS 11045 to replace a capacitor with a lower voltage rating?
Yes, this 250V rated capacitor can safely replace 220V or even 125V start capacitors, provided the MFD range matches your motor specifications. A higher voltage rating provides increased insulation strength but does not affect motor speed.

How do I confirm the 11045 is the right match for my motor?
Check the physical dimensions and the rating on your existing part. The 11045 features a 88-108 MFD capacitance and is approximately 3-3/8 inches tall by 1-13/16 inches in diameter, making it a drop-in for most standard round start capacitor mounting brackets.

Is this capacitor suitable for 50Hz and 60Hz systems?
Absolutely. The MARS series is rated for dual-frequency operation, making it ideal for standard North American grids as well as international service calls.

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.