Thomas & Betts | TB320 | Circuit Breaker | 20A | 3-Pole | 240V

Meet the TB320, a dependable Thomas & Betts circuit breaker designed to guard 240V, 3‑pole circuits with a precise 20A rating. Built for maintenance, retrofit, and replacement work, this unit slides into panels where exact specifications matter, delivering consistent protection when it counts.

Why choose TB320? The part number TB320 is the best reference for compatibility. Always confirm fit and ratings before ordering to ensure seamless integration with your panel or equipment and to avoid unexpected downtime.

Key specifications

• Amperage: 20A
• Poles: 3-Pole
• Voltage: 240V
• Brand: Thomas & Betts
• Part number: TB320

Ideal use cases

• Retrofits in 240V, 3-pole panel configurations to restore or upgrade protection
• Replacement projects where exact 20A, 3-pole, 240V specs are required
• Maintenance workflows in commercial or light-industrial environments that rely on dependable circuit protection

What makes it practical

Choosing the TB320 means opting for a manufacturer-backed solution that aligns with established electrical standards. It minimizes guesswork during installation and helps maintain panel performance across service intervals. If your system demands precise 20A, 3‑pole, 240V protection, this TB320 unit provides a reliable, drop‑in match that supports steady operation and safer circuits.

Important: Always verify fit and ratings before ordering. The TB320 part number is the best reference for ensuring compatibility with your panel or equipment.