Carrier EK02JA170 Fusible Plug

Carrier EK02JA170 Fusible Plug

Carrier

  • $22.09


The Carrier EK02JA170 Fusible Plug is a critical thermal safety component designed for suction line protection in commercial and residential HVAC systems. Engineered as a genuine Carrier OEM replacement part, this 1/16" NPT plug features a precision-calibrated eutectic alloy core that melts within a specific range of 160-170°F. This mechanical fail-safe acts as a pressure relief device, venting refrigerant to prevent catastrophic vessel rupture or compressor damage during extreme overheat conditions. Unlike electronic sensors, this brass fusible plug provides autonomous protection, ensuring HVAC system safety and compliance with pressure vessel standards. Whether you are performing routine HVAC maintenance or an emergency HVAC repair, using this official Carrier part ensures thread compatibility and reliable melt-point accuracy to protect your equipment and avoid costly downtime.

Key Benefits for HVAC Contractors:
  • Precise Thermal Activation: Rated for a 160-170°F melt range to ensure timely pressure release before equipment failure.
  • Standard Fitting: Features a 1/16" NPT connection for a secure, leak-resistant thread fit in standard suction line ports.
  • Mechanical Reliability: Operates without power or external controls, providing a permanent safety backup for Carrier HVAC units.
  • OEM Integrity: Built to original Carrier specifications, eliminating the risks associated with inconsistent aftermarket alloy tolerances.
Common Questions:

Is the EK02JA170 compatible with all Carrier models?
While designed for Carrier, Bryant, and Payne equipment, this plug is specific to systems requiring a 1/16" NPT thread and 160-170F activation. Always verify your specific model number before installation.

Can I reuse a fusible plug after it has activated?
No. Once the alloy core has melted to release pressure, the fusible plug is spent and must be replaced with a new EK02JA170 to restore system safety.

Where is this typically located in the system?
In most Carrier configurations, the EK02JA170 is installed on the suction line or heat exchanger to monitor for abnormal temperature spikes that could indicate a severe system malfunction.

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.

QUESTIONS & ANSWERS

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  • I this a course thread and what size is it (3/8") ?

    It's 1/16" NPT.