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The EATON H2026-3 is a thermal overload relay designed to protect motors and motor control circuits from sustained overcurrent conditions. It detects excess heat generated by overload current and trips the associated contactor or starter to prevent motor winding damage. This type of relay is a standard component in motor starter assemblies found in commercial HVAC equipment, pumping systems, and industrial control panels. Licensed electricians and controls technicians are the primary installers and service personnel for this device.
The H2026-3 is suited for use in motor control centers, combination starters, and standalone contactor assemblies where thermal overload protection is required. It is appropriate for both commercial and light industrial applications. Typical installations include air handling unit motors, pump motors, and compressor starters where overload protection must meet NEC requirements for motor branch circuit protection.
Designed as an OEM-style replacement thermal overload relay for use in motor starter and contactor assemblies requiring this form factor and overload class.
Installation should be performed by a licensed electrician in accordance with NEC Article 430 governing motor branch circuit and overload protection. De-energize and lock out the panel or motor control center before removing or installing any overload relay. Verify the replacement relay matches the required overload class and ampere rating for the protected motor before energizing the circuit.
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