ABB EF45-45 Electronic Overload Relay | 15.0A to 45.0A Range

1SAX221001R1102
ABB EF45-45 is a high-performance, self-supplied electronic overload relay engineered for superior protection of industrial motors. With an adjustable setting range of 15.0 to 45.0 Amperes, it is the perfect match for AF26, AF30, and AF38 contactors when operating at higher power levels. Its electronic design ensures that the trip curve remains stable and accurate, providing a massive upgrade in reliability over standard bimetallic relays.

Key Technical Features:

Broad 45A Setting Range: A 3:1 adjustment ratio (15-45A) provides exceptional flexibility for a wide variety of motor horsepowers and industrial loads.

Customizable Protection: Selectable trip classes (10E, 20E, 30E) allow you to protect motors with easy starts or high-inertia, heavy-duty starts.

Superior Phase Failure Protection: Fast-acting electronic sensors detect phase loss or imbalance in milliseconds, preventing catastrophic motor winding failure.

Eco-Friendly Energy Efficiency: Features significantly lower power loss compared to thermal relays, reducing heat generation in high-density electrical panels.

Rugged Reliability: Built to operate in harsh industrial environments with a design that is immune to ambient temperature fluctuations.