Eaton Overload Relay 1 NO/1 NC, 2.4 to 4A FLC Motor Rating, 4A Contact Current, 6W Power Rating, 500V AC 278449 ZB32-4

Eaton 278449 ZB32-4 Overload Relay is designed to provide precise thermal protection for motors in industrial automation and control applications. It supports motors with full load current ratings between 2.4 and 4 amperes, ensuring adaptable performance for varying motor sizes.

The relay is equipped with 1 normally open (NO) and 1 normally closed (NC) auxiliary contact, enabling versatile control schemes. Its reset can be performed automatically or manually to suit different operational requirements. The direct mounting type and screw terminal connections simplify installation and secure wiring integrity.

This device operates on a control voltage of 500 V AC and delivers a contact current rating of 4A with a power rating of 6W, suitable for managing electrical loads effectively. It functions reliably in ambient temperatures from -25°C to 55°C and carries an IP20 ingress protection rating, shielding against solid objects larger than 12.5 mm, making it ideal for indoor use.

Compact in size with precise dimensions (96mm length, 45mm width, 96mm depth), this overload relay fits neatly into control panels and machinery setups. It complies with international standards such as IEC/EN 60947 series, UL, CSA, CE, and VDE, ensuring safety and quality in demanding industrial environments.

Common use cases include motor protection in heating and cooling systems, industrial automation control circuits, machinery requiring overload safeguards, and branch circuit protection within commercial facilities.

This Overload Relay features 1 normally open (NO) and 1 normally closed (NC) contact for versatile control. The device supports both automatic and manual reset methods for operational flexibility. It is constructed for direct mounting with screw terminals to ensure secure connections.

The relay operates within a broad temperature range of -25°C to 55°C, suitable for various industrial environments. The IP20 rating provides protection against solid objects, appropriate for indoor applications. The compact dimensions enable easy integration into control panels and machinery.

This product meets multiple international certifications and standards for industrial safety and reliability. Explore the Electronics & Electricals category for more high-quality relay and contactor solutions at EnvMart.