Allen Bradley 140U-D6D2-B80 Series B Motor Protection Circuit Breaker

Condition = New Surplus

The 140U-D6D2-B80 is a reliable, UL489-listed current limiting molded case circuit breaker from Rockwell Automation's Bulletin 140U-D series. Designed for global industrial applications, this D-frame breaker provides fixed short circuit and overcurrent protection with high interrupting ratings.

Key Specifications:

• Part Number: 140U-D6D2-B80 (Series B)
• Rated Current: 8A
• Poles: 2-Pole
• Frame Size: D-Frame (up to 30A devices)
• Trip Type: Fixed Thermal / Fixed Magnetic (T/M)
• Interrupting Rating: Up to 100 kA (high fault current handling)
• Voltage Rating: 600 VAC (suitable for 480V/60Hz systems)
• Current Limiting: Yes – Reduces let-through energy for better protection
• Mounting: DIN Rail compatible
• Applications: Motor branch circuit protection, control panels, machinery, and global installations requiring UL489/IEC compliance

This breaker offers a compact footprint to save panel space, field-installable accessories, and compatibility with Allen-Bradley contactors and busbar systems for simplified wiring.

Why Choose the 140U-D6D2-B80?

• High interrupting capacity ensures safety in demanding environments.
• Current-limiting design minimizes damage during faults.
• Proven Rockwell Automation quality for long-term reliability.

Compatibility & Related Products:

• Often used in motor control circuits with Allen-Bradley 100-C contactors.
• Replacement/migration path: Consider newer 140UT-D7D2-B80 equivalents for legacy upgrades.