The Schneider LRD083 is a thermal overload relay designed for robust protection within electrical power circuits. As a component of the widely recognized TeSys series, this relay provides essential thermal protection, preventing damage to motors and associated equipment from sustained overcurrent conditions. Its design focuses on reliable operation in demanding industrial environments, ensuring the longevity of critical machinery.

Technical details

• Series: TeSys LRD
• Adjustable Current Range: 2.5 to 4 Amps. This range allows for precise calibration to match the specific full load current (FLC) of the protected motor, ensuring optimal protection without nuisance tripping.
• Mounting Type: Designed for direct mounting onto compatible TeSys D series contactors, facilitating a compact and integrated motor control solution.
• Reset Type: Manual and automatic reset options are typically available, providing flexibility for different operational requirements and maintenance procedures.
• Phase Loss Sensitivity: Incorporates phase loss sensitivity to detect unbalanced voltage conditions, which can lead to motor overheating.
• Auxiliary Contacts: Includes standard auxiliary contacts (typically 1 Normally Open and 1 Normally Closed) for signaling purposes, such as indicating overload status to a control system or PLC.
• Trip Class: Supports standard trip classes (e.g., Class 10, Class 20), which define the time it takes for the relay to trip under specific overload conditions.
• Environmental Rating: Suitable for use in industrial environments, with considerations for temperature, humidity, and vibration as per manufacturer specifications.

Applications & compatibility

The Schneider LRD083 thermal overload relay is commonly integrated into motor control centers (MCCs) and individual motor starter assemblies. It is essential for protecting three-phase induction motors used in applications such as conveyor systems, pumps, fans, and machine tools across various industries including manufacturing, food and beverage processing, and water treatment.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the LRD083 or contact our technical team for cross-reference assistance with compatible TeSys components.