Siemens | QJ23B080L | Circuit Breaker | 80A | 3-Pole | 240V

The Siemens QJ23B080L Circuit Breaker is a purpose-built protection device designed for dependable performance in commercial and light industrial panels. With an 80A rating and a 3‑pole configuration at 240V, this unit is engineered to handle demanding three‑phase distribution applications while delivering precise, reliable tripping when faults or overloads occur.

• Amperage: 80 A
• Poles: 3‑Pole
• Voltage: 240 V
• Reference: QJ23B080L — the exact part number is the best reference for compatibility and replacement accuracy

What makes the QJ23B080L stand out is its focus on exact specifications for continuity and safety in systems that require a precise match. This isn’t a generic breaker; it’s a deliberate choice for maintenance, retrofit, and replacement projects where the panel expects a QJ series solution with specific amperage, pole count, and voltage ratings. The 3‑pole design supports balanced three‑phase loads, helping to maintain stable distribution and protect sensitive equipment across all three phases.

Use cases and ideal scenarios

• Replacing a worn or failed breaker in a Siemens panel or a system designed to accept QJ‑type devices, ensuring compatibility with existing wiring and trip characteristics
• Retrofit projects where upgrading to an 80A, 3‑pole, 240V solution provides the needed protection for upgraded equipment or expanded loads
• Maintenance spares for facilities managers who rely on dependable, stockable components with clear part-number references

Why professionals choose Siemens for this role

• Reliability and predictable performance trusted in critical power distribution
• Clear part-number guidance to minimize guesswork during procurement and installation
• Designed to integrate smoothly with panels and systems that support QJ‑type breakers, reducing the risk of non‑ conformity after retrofit

Important compatibility note: Always confirm fit and ratings before ordering. The QJ23B080L is identified by its part number, and that reference remains the most reliable determinant of compatibility with your panel or distribution setup. If your project requires a precise 80A, 3‑pole, 240V breaker, this Siemens unit delivers the protection, form factor, and reliability you need to keep circuits safe and downtime to a minimum.

Practical installation tip: when replacing or retrofitting, follow the manufacturer’s installation instructions and use a licensed electrician to verify wiring integrity, panel compatibility, and proper reset/trip behavior after installation.