Siemens | QJ3B080A01 | Circuit Breaker | 80A | 3-Pole | 240V

Meet the Siemens QJ3B080A01 circuit breaker—a genuine Siemens protection device designed for demanding three‑phase electrical installations. With an 80A rating, a 3‑pole configuration, and 240V operation, this breaker delivers reliable, coordinated protection across all three hot lines to help prevent overloads and outages in your critical equipment and distribution panels.

Key specifications at a glance

• Amperage: 80A
• Poles: 3‑Pole
• Voltage: 240V
• Part number: QJ3B080A01
• Compatibility note: Confirm fit and ratings before ordering. The part number is the best reference for compatibility.

This breaker is ideal for maintenance, retrofit, and replacement projects where exact specifications matter. By matching the QJ3B080A01’s form factor and trip characteristics, you ensure seamless integration with your existing Siemens panels and downstream equipment, preserving protective coordination and overall system reliability.

Who benefits from this Siemens 80A, 3‑pole, 240V circuit breaker?

• Maintenance teams replacing aging or damaged protection devices in three‑phase 240V networks
• Retrofit projects upgrading existing circuits to robust Siemens protection with precise amperage and pole configuration
• Facility managers and engineers safeguarding motors, feeders, and 3‑phase distribution points in manufacturing, data centers, and commercial environments

Practical considerations and optimization tips

• Always verify panel compatibility by cross‑checking the exact part number (QJ3B080A01) and the panel’s labeling before purchase.
• Use this 3‑pole design to achieve synchronized protection across all three hot conductors in a 240V three‑phase system.
• Store and handle breakers in clean, dry conditions to preserve performance and trip reliability.

Choose the Siemens QJ3B080A01 when you need a precise, reliable 80A circuit breaker that aligns with Siemens protection schemes. Its part‑number‑driven compatibility ensures you’re getting a component that fits your panel’s design intent, delivering dependable protection when it matters most.