
MARS 11089 Capacitor
When you're out on a call and a compressor or blower motor is stalling on startup, you need a high-capacitance solution that can handle the initial torque requirements. The MARS 11089 motor start capacitor is the industry standard for providing that critical electrical boost to HVAC compressor motors and larger fan units. Engineered with a substantial 400-480 MFD (microfarad) rating, this electrolytic start capacitor is designed for intermittent duty, effectively shifting the phase in the motor windings to initiate rotation under heavy loads. The MARS 11089 is housed in a rugged, moisture-resistant Bakelite case, ensuring the internal components remain hermetically sealed against oil and dirt common in mechanical rooms and rooftop units.
This 250V/220V start capacitor maintains consistent performance across various electrical configurations, making it a versatile addition to any service truck. It features a compact 2-1/16 inch diameter and a 4-3/8 inch case height, allowing it to fit into standard mounting brackets and tight electrical panels where space is a premium. For technicians looking for a round motor start capacitor that meets EIA-463-B standards, the 11089 provides the reliability needed to prevent nuisance service calls and ensure smooth motor ignition cycles.
Key Benefits- High capacitance range of 400-480 MFD provides significant starting torque for heavy-duty motors.
- Dual voltage compatibility works seamlessly in 220V and 250V AC applications.
- Non-PCB biodegradable oil and hermetically sealed Bakelite housing protect against environmental contaminants.
- Standardized physical dimensions ensure easy drop-in replacement for existing start capacitors in HVACR equipment.
- Built with 1/4-inch quick-connect terminals for fast field wiring and secure transitions.
Can I use a start capacitor with a higher voltage rating than my original?
Yes, you can use a capacitor with a higher voltage rating (e.g., using this 250V unit to replace a 110V or 220V unit), provided the MFD rating matches or stays within 10% of the manufacturer’s specification.
Is the MARS 11089 suitable for continuous run applications?
No, this is a dedicated start capacitor. These are designed for momentary duty to assist in motor startup. For continuous operation, you must use a run capacitor.
How do I tell if my 400-480 MFD capacitor has failed?
Common signs of failure include a bulging top, visible leaking of the internal electrolyte, or a motor that "hums" but fails to spin. You should verify the capacitance with a multimeter set to the MFD/uF scale after safely discharging the unit.
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.
Original: $21.70
-65%$21.70
$7.59MARS 11089 Capacitor
When you're out on a call and a compressor or blower motor is stalling on startup, you need a high-capacitance solution that can handle the initial torque requirements. The MARS 11089 motor start capacitor is the industry standard for providing that critical electrical boost to HVAC compressor motors and larger fan units. Engineered with a substantial 400-480 MFD (microfarad) rating, this electrolytic start capacitor is designed for intermittent duty, effectively shifting the phase in the motor windings to initiate rotation under heavy loads. The MARS 11089 is housed in a rugged, moisture-resistant Bakelite case, ensuring the internal components remain hermetically sealed against oil and dirt common in mechanical rooms and rooftop units.
This 250V/220V start capacitor maintains consistent performance across various electrical configurations, making it a versatile addition to any service truck. It features a compact 2-1/16 inch diameter and a 4-3/8 inch case height, allowing it to fit into standard mounting brackets and tight electrical panels where space is a premium. For technicians looking for a round motor start capacitor that meets EIA-463-B standards, the 11089 provides the reliability needed to prevent nuisance service calls and ensure smooth motor ignition cycles.
Key Benefits- High capacitance range of 400-480 MFD provides significant starting torque for heavy-duty motors.
- Dual voltage compatibility works seamlessly in 220V and 250V AC applications.
- Non-PCB biodegradable oil and hermetically sealed Bakelite housing protect against environmental contaminants.
- Standardized physical dimensions ensure easy drop-in replacement for existing start capacitors in HVACR equipment.
- Built with 1/4-inch quick-connect terminals for fast field wiring and secure transitions.
Can I use a start capacitor with a higher voltage rating than my original?
Yes, you can use a capacitor with a higher voltage rating (e.g., using this 250V unit to replace a 110V or 220V unit), provided the MFD rating matches or stays within 10% of the manufacturer’s specification.
Is the MARS 11089 suitable for continuous run applications?
No, this is a dedicated start capacitor. These are designed for momentary duty to assist in motor startup. For continuous operation, you must use a run capacitor.
How do I tell if my 400-480 MFD capacitor has failed?
Common signs of failure include a bulging top, visible leaking of the internal electrolyte, or a motor that "hums" but fails to spin. You should verify the capacitance with a multimeter set to the MFD/uF scale after safely discharging the unit.
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.
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Description
When you're out on a call and a compressor or blower motor is stalling on startup, you need a high-capacitance solution that can handle the initial torque requirements. The MARS 11089 motor start capacitor is the industry standard for providing that critical electrical boost to HVAC compressor motors and larger fan units. Engineered with a substantial 400-480 MFD (microfarad) rating, this electrolytic start capacitor is designed for intermittent duty, effectively shifting the phase in the motor windings to initiate rotation under heavy loads. The MARS 11089 is housed in a rugged, moisture-resistant Bakelite case, ensuring the internal components remain hermetically sealed against oil and dirt common in mechanical rooms and rooftop units.
This 250V/220V start capacitor maintains consistent performance across various electrical configurations, making it a versatile addition to any service truck. It features a compact 2-1/16 inch diameter and a 4-3/8 inch case height, allowing it to fit into standard mounting brackets and tight electrical panels where space is a premium. For technicians looking for a round motor start capacitor that meets EIA-463-B standards, the 11089 provides the reliability needed to prevent nuisance service calls and ensure smooth motor ignition cycles.
Key Benefits- High capacitance range of 400-480 MFD provides significant starting torque for heavy-duty motors.
- Dual voltage compatibility works seamlessly in 220V and 250V AC applications.
- Non-PCB biodegradable oil and hermetically sealed Bakelite housing protect against environmental contaminants.
- Standardized physical dimensions ensure easy drop-in replacement for existing start capacitors in HVACR equipment.
- Built with 1/4-inch quick-connect terminals for fast field wiring and secure transitions.
Can I use a start capacitor with a higher voltage rating than my original?
Yes, you can use a capacitor with a higher voltage rating (e.g., using this 250V unit to replace a 110V or 220V unit), provided the MFD rating matches or stays within 10% of the manufacturer’s specification.
Is the MARS 11089 suitable for continuous run applications?
No, this is a dedicated start capacitor. These are designed for momentary duty to assist in motor startup. For continuous operation, you must use a run capacitor.
How do I tell if my 400-480 MFD capacitor has failed?
Common signs of failure include a bulging top, visible leaking of the internal electrolyte, or a motor that "hums" but fails to spin. You should verify the capacitance with a multimeter set to the MFD/uF scale after safely discharging the unit.
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.












