Eaton Cutler-Hammer XTOB040DC1 Overload

The Eaton Cutler-Hammer XTOB040DC1 is a professional-grade XT IEC bimetallic overload relay engineered for precise thermal motor protection in heavy-duty HVACR and industrial control applications. Specifically designed for a 24-40A overload range, this 55 mm frame size component provides Class 10A trip characteristics, making it essential for protecting motors against phase failure and sustained overcurrent conditions. It integrates seamlessly through direct mounting with Eaton 40-72A contactors, reducing panel space requirements and installation time for contractors. The unit features built-in 1 NO and 1 NC auxiliary contacts, allowing for immediate signaling and control circuit integration. Built to meet global standards including IEC 60947 and UL Listing, this bimetallic relay is technically rated for the protection of EEx e-motors, ensuring reliable performance in specific hazardous environments and high-demand automation systems.

Key Benefits for Technicians:

• Optimized Motor Protection: The Class 10A trip type ensures rapid response to thermal overload while preventing nuisance tripping during standard motor startups.
• Broad Compatibility: Engineered for direct interface with XT series contactors, specifically the 40A to 72A frame range, ensuring a secure and vibration-resistant connection.
• Enhanced Safety Compliance: ATEX compliant and RoHS certified, meeting the technical requirements for modern electrical builds and environmental safety.
• Dual Auxiliary Contacts: Standard 1NO/1NC contact configuration allows for simultaneous motor disconnection and remote status notification.
• Extreme Environment Ready: Rated for a wide operating temperature range and suitable for diverse industrial machinery and control panel deployments.

Common Technical Questions:

How do you adjust the trip current on the XTOB040DC1?
The front-facing dial allows for precise adjustment within the 24-40A range using a standard screwdriver. Always set the dial to the Motor Full Load Amps (FLA) indicated on the nameplate.

Can this overload relay be used with non-Eaton contactors?
While designed for direct mounting to Eaton 40-72A contactors, separate mounting adapters can be utilized for standalone DIN rail or panel mounting in custom automation systems.

What is the reset functionality of this IEC relay?
The XTOB040DC1 features selectable manual or automatic reset modes, giving technicians flexibility based on the specific safety protocol of the machinery being serviced.

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.