B32.0 - Square D Thermal Unit

B32.0 - Square D Thermal Unit

Keep your motors safe and efficient with the Square D B32.0 Thermal Unit—a dependable, high-performing overload protector engineered for NEMA Type S motor starters. Sensitive to current changes, it reacts quickly under adverse conditions to prevent motor damage and downtime, giving both electricians and facility managers confidence in their equipment protection.

Key Features and Benefits

• Precise Overload Guard: Uses a melting-alloy technology to accurately trip at the right time, stepping in exactly when motors overdraw, reducing risk of damage and unexpected shutoffs.
• Heavy-Duty Design: Built from quality materials to endure harsh environments, it supports long-lasting, dependable performance.
• Plug-and-Play Fit: Features a simple plug-in mounting, making it easy to install or switch out—perfect for maintenance teams and upgrades.
• High Voltage Capacity: Rated for up to 600 VAC, covering a wide range of industrial applications without compromising safety.

Technical Specifications

• Thermal Overload Type: Melting Alloy
• Motor Trip Class: 20
• Full-Load Current: 21.3 – 23.0 A
• Voltage Rating: Up to 600 VAC
• Mounting Style: Plug-In
• Dimensions:
  • 2.5" (L) × 1.2" (W) × 0.8" (H)
• Net Weight: 0.64 oz (18.14 g)

Material Compliance and Certifications

• Certified CE: For global safety compliance
• PVC-Free Construction: Aligns with eco-friendly practices
• Proposition 65 Warning: Contains lead and lead compounds, which may pose cancer or reproductive risks in California

Where It Works Best

• The B32.0 is a wise choice for industrial and commercial environments—whether you’re in a factory, processing plant, or commercial building. Ideal for machinery that operates under frequent use, this thermal unit is compatible with a wide array of NEMA Type S motor starters, making it a flexible option for both routine maintenance and system upgrades.