The Schneider B25.0 Thermal Unit is a melting alloy thermal overload relay designed for motor protection within industrial automation systems. Manufactured by Schneider Electric under the Square D brand, this unit is engineered for reliable overload detection and tripping. It is commonly integrated into motor control centers and individual motor starter applications.

Technical details

• Series: B25.0
• Type: Melting Alloy Thermal Overload Relay
• Trip Class: Class 10 (typical for this series, verify with datasheet)
• Mounting: Designed for direct mounting onto compatible Square D contactors (verify specific contactor compatibility)
• Reset Type: Manual/Automatic reset functionality (verify specific model configuration)
• Phase: Three-phase operation
• Amperage Range: Adjustable trip setting, nominal rating of 25A (verify specific adjustment range from datasheet)
• Voltage Rating: Suitable for use with standard industrial voltages up to 600VAC (verify specific voltage rating from datasheet)
• Contact Configuration: Typically includes auxiliary contacts for signaling (e.g., 1 NO + 1 NC, verify specific configuration)
• Operating Temperature: Designed for standard industrial ambient temperature ranges (verify specific range from datasheet)

Applications & compatibility

This thermal unit is suitable for protecting three-phase induction motors across a wide range of industrial machinery. Applications include conveyor systems, pumps, fans, machine tools, and other equipment requiring reliable motor overload protection. It is designed to be compatible with specific Schneider Electric Square D contactor families, ensuring seamless integration into existing motor control solutions.

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 Schneider B25.0 Thermal Unit or contact our technical team for cross-reference assistance with compatible Square D components.