Siemens | QJ23B080HA01 | Circuit Breaker | 80A | 3-Pole | 240V | Bolt-On

Siemens QJ23B080HA01 is a purpose-built circuit breaker designed for reliable overcurrent protection in 240V, 3‑pole electrical systems. Engineered for maintenance, retrofit, and replacement projects, this unit fits seamlessly into Siemens panels that require the QJ bolt-on style, helping you restore safe operation quickly and with confidence.

Performance and protection for 3‑phase 240V systems

• Amperage: 80A — sized to guard high‑demand circuits without unnecessary nuisance tripping.
• Poles: 3‑Pole — ideal for 3‑phase 240V applications, providing coordinated protection across all live conductors.
• Voltage rating: 240V — suitable for common industrial and commercial panel configurations.
• Mounting: Bolt-On — facilitates secure, durable attachment in compatible enclosures and simplifies field service.
• Part reference: QJ23B080HA01 — using the exact part number ensures compatibility and correct replacement in Siemens systems.

Compatibility and practical use

This breaker is intended as a maintenance, retrofit, and replacement solution within Siemens panels that accept QJ‑type bolt‑on breakers. Its precise specs make it a reliable matching component for panels that require an 80A, 3‑pole, 240V protective device.

Ideal use cases

• Upgrading or restoring power distribution in commercial electrical rooms where a 3‑phase 240V feed is standard.
• Retrofit projects where existing equipment relies on a bolt‑on 3‑pole Siemens breaker to maintain system protection and coordination.
• Spare parts preparation for service fleets handling Siemens QJ‑series installations.

Installation tips and best practices

• Before ordering, confirm fit and ratings against the target panel’s labeling and the QJ series requirements. The part number QJ23B080HA01 is the most reliable reference for compatibility.
• Power should be isolated and all local safety protocols followed during replacement or retrofit work.
• Secure the breaker to the panel using the bolt‑on hardware specified by the enclosure manufacturer, and ensure proper seating on the bus bars to maintain a solid electrical connection.
• After installation, verify that the tripping mechanism engages under simulated fault conditions per your panel’s testing procedure.

Why choose this Siemens breaker over alternatives

When your goal is dependable, manufacturer‑matched protection for a 3‑phase 240V system, the Siemens QJ23B080HA01 delivers precision‑engineered performance tuned for Siemens panels. The bolt‑on design minimizes field mounting challenges, reducing installation time and ensuring a secure, repeatable fit. By using the exact part number for compatibility, you minimize the risk of misfit components that can compromise safety and performance in critical electrical infrastructure.

Whether you’re maintaining an existing installation, upgrading to restore capacity, or replacing a worn device, this 80A, 3‑pole, 240V bolt‑on breaker from Siemens provides clear protection boundaries for your electrical distribution — with the reliability you expect from the QJ family.