SQUARE D Thermal Unit: 20 Trip Class, B9.10

A Square D thermal unit, such as the B9.10, is used in motor starters and overload relays to protect motors from overheating due to sustained overcurrent. It provides Class 20 trip protection, meaning it will trip within 20 seconds at 600% of the motor’s full-load current.

The Square D B9.10 thermal unit is a Class 20 trip element with manufacturer part number B9.10. It is designed for use with Square D motor starters and overload relays to provide accurate thermal protection. Always verify compatibility with your specific starter model before ordering.

3G Electric supplies Square D thermal units like the B9.10 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine Square D components and ensure they meet your application requirements.

To select the correct Square D thermal unit, match the unit’s trip class and current rating to your motor’s full-load amperage and starting characteristics. The B9.10 is a Class 20 unit, suitable for standard motor starting. Consult the motor nameplate and Square D selection tables for precise sizing.