Siemens | QJH23B150A02 | Circuit Breaker | 150A | 3-Pole | 240V | Bolt-On

Protect your three‑phase 240V distribution with the Siemens QJH23B150A02 Circuit Breaker. Featuring a 150A rating and 3‑pole configuration, this bolt‑on unit delivers dependable overcurrent protection for commercial and industrial panels. Built for maintenance, retrofit, and replacement projects, it slots into compatible Siemens systems with ease, helping you minimize downtime and keep critical equipment safeguarded.

Key specifications

• Amperage: 150A
• Poles: 3‑Pole
• Voltage: 240V
• Mounting: Bolt‑On
• Part number: QJH23B150A02

Why choose this Siemens circuit breaker

As a genuine Siemens component, the QJH23B150A02 is designed to integrate seamlessly with Siemens panels and the broader Q‑series ecosystem. Its bolt‑on mounting provides a secure, straightforward installation path, reducing field wiring complexity during upgrades or replacements. The 3‑pole, 240V configuration is ideal for balanced protection across all three phases in typical commercial and light industrial applications.

Ideal use cases

• Maintenance: swap in a like‑for‑like 150A, 3‑pole, 240V breaker to restore protection without panel modification.
• Retrofit: upgrade aging distribution boards to a reliable Siemens part that matches existing specs.
• Replacement stock: keep the exact part on hand to minimize downtime when a failure occurs in a 3‑phase system.

Practical considerations

Before ordering, confirm fit and ratings for your specific panel. The part number is the best reference for compatibility, so using QJH23B150A02 will help ensure you receive a match to your existing Siemens installation. Verify that your panel is rated for 240V and configured for bolt‑on 3‑pole devices to avoid mismatches.

In short, the Siemens QJH23B150A02 is a precise, reliable solution for safeguarding 3‑phase circuits at 150A, with mounting designed to streamline installation and compatibility anchored in Siemens’ proven engineering.