
Tecumseh K90-30 Overload
The Tecumseh K90-30 Overload is a critical hermetic protection component engineered to safeguard refrigeration compressors from thermal and electrical failure. As a veteran-grade OEM compressor part, this bimetallic overload relay is designed specifically for high-stress applications, including the Tecumseh AJA2419ZXA and AJA2419ZXD models. It functions as a primary safety line, monitoring Locked Rotor Amps (LRA) and motor winding temperatures. If the compressor stalls or experiences a rapid-cycling event due to high head pressure, the K90-30 interrupts power to prevent catastrophic winding burnout.
For field technicians, verifying this compressor overload kit is the first step when a unit is humming or cycling on its internal safety. This specific kit often works in conjunction with the K71-13 relay to manage starting torque and running current. Its calibrated trip curve ensures the motor stays within its operational envelope during 115V and 208-230V single-phase cycles. Precise internal motor protection is essential for maintaining the volumetric efficiency of your hermetic system and preventing expensive downtime caused by avoidable motor failure.
Key Benefits:
- Precision Thermal Sensing: Instantly responds to winding temperature spikes, preventing refrigeration compressor burnouts.
- OEM Compatibility: Specifically designed for Tecumseh AJA series compressors, ensuring the trip curve matches original specifications.
- Durability: Built for heavy-duty industrial and commercial refrigeration environments, resisting vibration and contact pitting.
- Fast Restoration: Features an automatic reset function that allows the system to resume operation once safe temperatures are achieved.
Common Questions:
- How do I know if the K90-30 is tripped or defective? Use a multimeter to check for continuity across the terminals. If the compressor is cool but the overload protector shows an open circuit, it likely needs replacement.
- Can I swap this with a different K90 series part? No. Overloads are calibrated to specific Rated Load Amps (RLA). Using an incorrect model can result in premature tripping or failure to protect the motor.
- What causes this overload to trip repeatedly? Common causes include a failing start capacitor, high ambient temperatures, non-condensables in the system, or restricted refrigerant flow.
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: $62.09
-65%$62.09
$21.73Tecumseh K90-30 Overload
The Tecumseh K90-30 Overload is a critical hermetic protection component engineered to safeguard refrigeration compressors from thermal and electrical failure. As a veteran-grade OEM compressor part, this bimetallic overload relay is designed specifically for high-stress applications, including the Tecumseh AJA2419ZXA and AJA2419ZXD models. It functions as a primary safety line, monitoring Locked Rotor Amps (LRA) and motor winding temperatures. If the compressor stalls or experiences a rapid-cycling event due to high head pressure, the K90-30 interrupts power to prevent catastrophic winding burnout.
For field technicians, verifying this compressor overload kit is the first step when a unit is humming or cycling on its internal safety. This specific kit often works in conjunction with the K71-13 relay to manage starting torque and running current. Its calibrated trip curve ensures the motor stays within its operational envelope during 115V and 208-230V single-phase cycles. Precise internal motor protection is essential for maintaining the volumetric efficiency of your hermetic system and preventing expensive downtime caused by avoidable motor failure.
Key Benefits:
- Precision Thermal Sensing: Instantly responds to winding temperature spikes, preventing refrigeration compressor burnouts.
- OEM Compatibility: Specifically designed for Tecumseh AJA series compressors, ensuring the trip curve matches original specifications.
- Durability: Built for heavy-duty industrial and commercial refrigeration environments, resisting vibration and contact pitting.
- Fast Restoration: Features an automatic reset function that allows the system to resume operation once safe temperatures are achieved.
Common Questions:
- How do I know if the K90-30 is tripped or defective? Use a multimeter to check for continuity across the terminals. If the compressor is cool but the overload protector shows an open circuit, it likely needs replacement.
- Can I swap this with a different K90 series part? No. Overloads are calibrated to specific Rated Load Amps (RLA). Using an incorrect model can result in premature tripping or failure to protect the motor.
- What causes this overload to trip repeatedly? Common causes include a failing start capacitor, high ambient temperatures, non-condensables in the system, or restricted refrigerant flow.
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 K90-30 Overload is a critical hermetic protection component engineered to safeguard refrigeration compressors from thermal and electrical failure. As a veteran-grade OEM compressor part, this bimetallic overload relay is designed specifically for high-stress applications, including the Tecumseh AJA2419ZXA and AJA2419ZXD models. It functions as a primary safety line, monitoring Locked Rotor Amps (LRA) and motor winding temperatures. If the compressor stalls or experiences a rapid-cycling event due to high head pressure, the K90-30 interrupts power to prevent catastrophic winding burnout.
For field technicians, verifying this compressor overload kit is the first step when a unit is humming or cycling on its internal safety. This specific kit often works in conjunction with the K71-13 relay to manage starting torque and running current. Its calibrated trip curve ensures the motor stays within its operational envelope during 115V and 208-230V single-phase cycles. Precise internal motor protection is essential for maintaining the volumetric efficiency of your hermetic system and preventing expensive downtime caused by avoidable motor failure.
Key Benefits:
- Precision Thermal Sensing: Instantly responds to winding temperature spikes, preventing refrigeration compressor burnouts.
- OEM Compatibility: Specifically designed for Tecumseh AJA series compressors, ensuring the trip curve matches original specifications.
- Durability: Built for heavy-duty industrial and commercial refrigeration environments, resisting vibration and contact pitting.
- Fast Restoration: Features an automatic reset function that allows the system to resume operation once safe temperatures are achieved.
Common Questions:
- How do I know if the K90-30 is tripped or defective? Use a multimeter to check for continuity across the terminals. If the compressor is cool but the overload protector shows an open circuit, it likely needs replacement.
- Can I swap this with a different K90 series part? No. Overloads are calibrated to specific Rated Load Amps (RLA). Using an incorrect model can result in premature tripping or failure to protect the motor.
- What causes this overload to trip repeatedly? Common causes include a failing start capacitor, high ambient temperatures, non-condensables in the system, or restricted refrigerant flow.
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.












