
Tecumseh K90-97 Overload Relay
The Tecumseh K90-97 Overload Relay is a high-precision thermal protection component engineered specifically for hermetic compressors in commercial refrigeration and HVAC systems. As a veteran technician knows, maintaining the integrity of the motor windings is critical; this external overload protector monitors current draw and temperature, safely interrupting the circuit before thermal runaway can damage the internal motor. It is a direct fit for Tecumseh AJA7455ZXA and AJA7461YXA 115V reciprocating compressors, providing the necessary sensitivity to detect stall conditions or excessive heat. This HVAC compressor relay features a self-resetting bimetal disc that allows the system to return to operation once normal thermal parameters are achieved, reducing unnecessary downtime during transient load spikes. When replacing a failed compressor protector, ensure the electrical terminals under the protective cover are clean and secure to prevent high-resistance connections. This OEM-spec part ensures calibrated response times that generic alternatives often fail to replicate, protecting your client's investment in refrigeration equipment.
Key Benefits- Precise Thermal Response: Calibrated to trip at specific temperature thresholds to protect motor insulation.
- OEM Compatibility: Designed for seamless integration with Tecumseh reciprocating compressors, ensuring correct fitment and wiring.
- Automatic Reset: Minimizes system downtime by restoring the circuit once the motor has cooled to safe operating levels.
- Durable Construction: Built to withstand the harsh vibration and temperature cycles found in condensing unit housings.
How do I verify if the K90-97 is the cause of my compressor not starting?
Perform a continuity check across the overload terminals while the part is cool. An open circuit indicates a failed bimetal disc or a permanent trip, necessitating a Tecumseh overload replacement.
Can I use this relay on a 230V system?
No, this specific model is engineered for 115V/60Hz/1Ph applications, such as the AJA7455ZXA compressor. For 230V applications, refer to the K90-98 or manufacturer cross-reference data.
What causes this overload to trip frequently?
Frequent tripping is often a symptom of high head pressure, a faulty start capacitor, low voltage delivery, or a restricted liquid line, all of which force the motor to draw excess amperage.
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.
Tecumseh K90-97 Overload Relay
The Tecumseh K90-97 Overload Relay is a high-precision thermal protection component engineered specifically for hermetic compressors in commercial refrigeration and HVAC systems. As a veteran technician knows, maintaining the integrity of the motor windings is critical; this external overload protector monitors current draw and temperature, safely interrupting the circuit before thermal runaway can damage the internal motor. It is a direct fit for Tecumseh AJA7455ZXA and AJA7461YXA 115V reciprocating compressors, providing the necessary sensitivity to detect stall conditions or excessive heat. This HVAC compressor relay features a self-resetting bimetal disc that allows the system to return to operation once normal thermal parameters are achieved, reducing unnecessary downtime during transient load spikes. When replacing a failed compressor protector, ensure the electrical terminals under the protective cover are clean and secure to prevent high-resistance connections. This OEM-spec part ensures calibrated response times that generic alternatives often fail to replicate, protecting your client's investment in refrigeration equipment.
Key Benefits- Precise Thermal Response: Calibrated to trip at specific temperature thresholds to protect motor insulation.
- OEM Compatibility: Designed for seamless integration with Tecumseh reciprocating compressors, ensuring correct fitment and wiring.
- Automatic Reset: Minimizes system downtime by restoring the circuit once the motor has cooled to safe operating levels.
- Durable Construction: Built to withstand the harsh vibration and temperature cycles found in condensing unit housings.
How do I verify if the K90-97 is the cause of my compressor not starting?
Perform a continuity check across the overload terminals while the part is cool. An open circuit indicates a failed bimetal disc or a permanent trip, necessitating a Tecumseh overload replacement.
Can I use this relay on a 230V system?
No, this specific model is engineered for 115V/60Hz/1Ph applications, such as the AJA7455ZXA compressor. For 230V applications, refer to the K90-98 or manufacturer cross-reference data.
What causes this overload to trip frequently?
Frequent tripping is often a symptom of high head pressure, a faulty start capacitor, low voltage delivery, or a restricted liquid line, all of which force the motor to draw excess amperage.
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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Product Information
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Description
The Tecumseh K90-97 Overload Relay is a high-precision thermal protection component engineered specifically for hermetic compressors in commercial refrigeration and HVAC systems. As a veteran technician knows, maintaining the integrity of the motor windings is critical; this external overload protector monitors current draw and temperature, safely interrupting the circuit before thermal runaway can damage the internal motor. It is a direct fit for Tecumseh AJA7455ZXA and AJA7461YXA 115V reciprocating compressors, providing the necessary sensitivity to detect stall conditions or excessive heat. This HVAC compressor relay features a self-resetting bimetal disc that allows the system to return to operation once normal thermal parameters are achieved, reducing unnecessary downtime during transient load spikes. When replacing a failed compressor protector, ensure the electrical terminals under the protective cover are clean and secure to prevent high-resistance connections. This OEM-spec part ensures calibrated response times that generic alternatives often fail to replicate, protecting your client's investment in refrigeration equipment.
Key Benefits- Precise Thermal Response: Calibrated to trip at specific temperature thresholds to protect motor insulation.
- OEM Compatibility: Designed for seamless integration with Tecumseh reciprocating compressors, ensuring correct fitment and wiring.
- Automatic Reset: Minimizes system downtime by restoring the circuit once the motor has cooled to safe operating levels.
- Durable Construction: Built to withstand the harsh vibration and temperature cycles found in condensing unit housings.
How do I verify if the K90-97 is the cause of my compressor not starting?
Perform a continuity check across the overload terminals while the part is cool. An open circuit indicates a failed bimetal disc or a permanent trip, necessitating a Tecumseh overload replacement.
Can I use this relay on a 230V system?
No, this specific model is engineered for 115V/60Hz/1Ph applications, such as the AJA7455ZXA compressor. For 230V applications, refer to the K90-98 or manufacturer cross-reference data.
What causes this overload to trip frequently?
Frequent tripping is often a symptom of high head pressure, a faulty start capacitor, low voltage delivery, or a restricted liquid line, all of which force the motor to draw excess amperage.
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.











