Siemens | HQJ23B150HA02 | Circuit Breaker | 150A | 3-Pole | 240V | Bolt-On

Siemens HQJ23B150HA02 Circuit Breaker — a precise, bolt-on protection solution designed for 240V systems that demand reliable current handling and quick replacement in Siemens panels. Engineered for maintenance, retrofit, and spare-parts scenarios, this 150A, 3-pole device keeps your electrical distribution safe and compliant with exact Siemens specifications.

• Amperage: 150A
• Poles: 3-Pole
• Voltage rating: 240V
• Mounting: Bolt-On
• Part number: HQJ23B150HA02

Why choose this Siemens circuit breaker

Designed to match the precise Siemens protection scheme, this HQJ23B150HA02 unit delivers dependable overcurrent protection for three separate conductors on a 240V supply. The bolt-on mounting provides a secure, vibration-resistant fit that’s well-suited to commercial and light-industrial panels where service interruptions must be minimized. By selecting the exact part number, you ensure compatibility with the bus configuration, trip characteristics, and enclosure standards of your Siemens system.

Ideal use cases

• Replacement for a failed or outdated 3-pole, 240V Siemens breaker in service panels and switchgear.
• Retrofit projects where the existing protection device must maintain the same amperage, pole count, and mounting style.
• Maintenance inventory for critical pathways in commercial facilities, ensuring fast swaps with minimal downtime.
• New installations within Siemens-designed systems that require a bolt-on, three-phase 240V protection device.

Compatibility and installation notes

To ensure a perfect match, confirm fit and ratings before ordering. The part number HQJ23B150HA02 is the best reference for compatibility with your Siemens panel and protection scheme. If your panel requires a bolt-on, 3-pole 240V device with a 150A rating, this breaker is positioned to slot into the existing hardware and bus connections without adapters or reconfiguration.

What problems this solves

Accurate protection aligned with your system’s specifications reduces nuisance trips, protects wiring and appliances, and simplifies maintenance planning. With the HQJ23B150HA02, you get a dependable, field-ready solution that supports steady operation, minimizes downtime during replacements, and preserves the integrity of your electrical distribution network.

Whether you’re upgrading an aging panel, performing a retrofit, or stocking spare parts for critical circuits, this Siemens 150A, 3-Pole, 240V bolt-on circuit breaker is built to deliver consistent performance and straightforward service in demanding environments.