Tecumseh K90-40 Overload Kit

The Tecumseh K90-40 Overload Kit is a critical OEM replacement component engineered for precision thermal protection in hermetic compressors. As a veteran-grade compressor overload protector, this kit is specifically designed to handle the high-demand electrical requirements of Tecumseh CAJ2446Z and AJE2444ZHZ models, as well as various European-spec refrigeration units. By integrating a calibrated thermal overload protector, the K90-40 monitors current draw and temperature fluctuations, providing a reliable failsafe that interrupts power before winding damage occurs due to locked rotor amps (LRA) or excessive rated load amps (RLA).

For contractors performing field service, this overload kit serves as a direct cross-reference for part number 8300CRTK51. The kit includes the necessary thermal element and mounting hardware required for a secure fit within the compressor terminal box. Utilizing genuine Tecumseh parts ensures that the motor protection curves match the original manufacturer's specifications, maintaining the HVAC compressor's performance during high-ambient operations or voltage dips. This kit is a standard solution for 208-230V applications, offering the durability needed for commercial refrigeration and industrial cooling systems where system reliability is non-negotiable.

• OEM Compatibility: Exact calibrated replacement for Tecumseh CAJ2446Z and AJE2444ZHZ compressor series.
• Rapid Circuit Interruption: Protects against motor burnout by detecting excessive current and high internal temperatures.
• Precision Fit: Designed to mount directly to the terminal pins, ensuring consistent thermal contact for accurate sensing.
• Industry Standard: Meets the technical requirements for 208-230V, 60Hz single-phase refrigeration systems.

Is the K90-40 compatible with other compressor brands?
This kit is specifically engineered for Tecumseh compressors. While some electrical specs may overlap, we recommend using this only for the specified Tecumseh models to ensure improper trip curves don't lead to motor failure.

What is the primary cause of an overload tripping?
In most HVACR systems, a trip is triggered by high discharge pressures, low voltage, or a failing start capacitor. If the K90-40 remains open, always check your LRA and capacitor values.

Can I use the K90-40 to replace an 8300CRTK51?
Yes, the K90-40 is the verified technical equivalent and replacement for the 8300CRTK51 overload protector.

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.