Tecumseh K146-52 Start Capacitor
The Tecumseh K146-52 Start Capacitor is a mission-critical component engineered for high-torque HVACR applications. Rated at 378-440 MFD and 125V, this dry electrolytic start capacitor provides the necessary phase shift to initiate compressor motor rotation under heavy head pressure. Built for reliability in Tecumseh reciprocating compressors, including the AJA and AKA series, it features a rugged black phenolic case designed to withstand the high-temperature environments of an electrical cabinet. This HVAC start capacitor replacement ensures rapid motor acceleration, typically disengaging within a fraction of a second via a potential relay or centrifugal switch to prevent winding damage. When your unit exhibits a hard start condition, humming without turnover, or excessive inrush current, a failed 378-440 microfarad capacitor is the primary suspect. Proper installation requires checking for a bleed resistor to protect relay contacts from arcing. This OEM-spec capacitor maintains the precise capacitance tolerance needed for optimal motor efficiency and long-term system performance.
Key Benefits for Contractors- High Starting Torque: Provides 378-440 MFD of capacitance to overcome static friction and back-pressure in refrigeration compressors.
- Universal 125V Compatibility: Designed for standard single-phase HVACR motor circuits requiring a robust voltage rating.
- Compact Form Factor: The round cylindrical design fits standard mounting brackets in tight electrical housings.
- Durable Construction: Engineered to handle the thermal stress of frequent cycling in commercial and residential systems.
- Optimized Motor Protection: Prevents compressor burn-out by ensuring the motor reaches 75% of rated speed quickly.
What are the symptoms of a bad 378-440 MFD 125V start capacitor?
Common indicators include a compressor that "struggles" to turn on, audible humming or clicking from the outdoor unit, and tripped breakers due to high locked rotor amps (LRA). Physical signs include a bulged top membrane or leaking fluid.
Can I use a capacitor with a higher voltage rating?
Yes, in HVACR applications, you can replace a 125V capacitor with one rated for 250V or higher, provided the MFD rating remains within the 378-440 range. Never use a capacitor with a lower voltage rating than the original.
Does this capacitor require a bleed resistor?
While some start capacitor kits come with them pre-installed, it is standard practice to verify. A 15k-18k ohm resistor prevents residual voltage from pitting the contacts of your start relay.
This item is not eligible for free shipping.
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: $46.44
-65%$46.44
$16.25Tecumseh K146-52 Start Capacitor
The Tecumseh K146-52 Start Capacitor is a mission-critical component engineered for high-torque HVACR applications. Rated at 378-440 MFD and 125V, this dry electrolytic start capacitor provides the necessary phase shift to initiate compressor motor rotation under heavy head pressure. Built for reliability in Tecumseh reciprocating compressors, including the AJA and AKA series, it features a rugged black phenolic case designed to withstand the high-temperature environments of an electrical cabinet. This HVAC start capacitor replacement ensures rapid motor acceleration, typically disengaging within a fraction of a second via a potential relay or centrifugal switch to prevent winding damage. When your unit exhibits a hard start condition, humming without turnover, or excessive inrush current, a failed 378-440 microfarad capacitor is the primary suspect. Proper installation requires checking for a bleed resistor to protect relay contacts from arcing. This OEM-spec capacitor maintains the precise capacitance tolerance needed for optimal motor efficiency and long-term system performance.
Key Benefits for Contractors- High Starting Torque: Provides 378-440 MFD of capacitance to overcome static friction and back-pressure in refrigeration compressors.
- Universal 125V Compatibility: Designed for standard single-phase HVACR motor circuits requiring a robust voltage rating.
- Compact Form Factor: The round cylindrical design fits standard mounting brackets in tight electrical housings.
- Durable Construction: Engineered to handle the thermal stress of frequent cycling in commercial and residential systems.
- Optimized Motor Protection: Prevents compressor burn-out by ensuring the motor reaches 75% of rated speed quickly.
What are the symptoms of a bad 378-440 MFD 125V start capacitor?
Common indicators include a compressor that "struggles" to turn on, audible humming or clicking from the outdoor unit, and tripped breakers due to high locked rotor amps (LRA). Physical signs include a bulged top membrane or leaking fluid.
Can I use a capacitor with a higher voltage rating?
Yes, in HVACR applications, you can replace a 125V capacitor with one rated for 250V or higher, provided the MFD rating remains within the 378-440 range. Never use a capacitor with a lower voltage rating than the original.
Does this capacitor require a bleed resistor?
While some start capacitor kits come with them pre-installed, it is standard practice to verify. A 15k-18k ohm resistor prevents residual voltage from pitting the contacts of your start relay.
This item is not eligible for free shipping.
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
The Tecumseh K146-52 Start Capacitor is a mission-critical component engineered for high-torque HVACR applications. Rated at 378-440 MFD and 125V, this dry electrolytic start capacitor provides the necessary phase shift to initiate compressor motor rotation under heavy head pressure. Built for reliability in Tecumseh reciprocating compressors, including the AJA and AKA series, it features a rugged black phenolic case designed to withstand the high-temperature environments of an electrical cabinet. This HVAC start capacitor replacement ensures rapid motor acceleration, typically disengaging within a fraction of a second via a potential relay or centrifugal switch to prevent winding damage. When your unit exhibits a hard start condition, humming without turnover, or excessive inrush current, a failed 378-440 microfarad capacitor is the primary suspect. Proper installation requires checking for a bleed resistor to protect relay contacts from arcing. This OEM-spec capacitor maintains the precise capacitance tolerance needed for optimal motor efficiency and long-term system performance.
Key Benefits for Contractors- High Starting Torque: Provides 378-440 MFD of capacitance to overcome static friction and back-pressure in refrigeration compressors.
- Universal 125V Compatibility: Designed for standard single-phase HVACR motor circuits requiring a robust voltage rating.
- Compact Form Factor: The round cylindrical design fits standard mounting brackets in tight electrical housings.
- Durable Construction: Engineered to handle the thermal stress of frequent cycling in commercial and residential systems.
- Optimized Motor Protection: Prevents compressor burn-out by ensuring the motor reaches 75% of rated speed quickly.
What are the symptoms of a bad 378-440 MFD 125V start capacitor?
Common indicators include a compressor that "struggles" to turn on, audible humming or clicking from the outdoor unit, and tripped breakers due to high locked rotor amps (LRA). Physical signs include a bulged top membrane or leaking fluid.
Can I use a capacitor with a higher voltage rating?
Yes, in HVACR applications, you can replace a 125V capacitor with one rated for 250V or higher, provided the MFD rating remains within the 378-440 range. Never use a capacitor with a lower voltage rating than the original.
Does this capacitor require a bleed resistor?
While some start capacitor kits come with them pre-installed, it is standard practice to verify. A 15k-18k ohm resistor prevents residual voltage from pitting the contacts of your start relay.
This item is not eligible for free shipping.
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.
