Siemens | QJ23B20000S01 | Circuit Breaker | 3-Pole | Bolt-On

Siemens QJ23B20000S01 Circuit Breaker — a robust 3-pole bolt-on protection device built for demanding electrical panels. This Siemens component is designed for maintenance, retrofit, and replacement projects where exact specifications matter, ensuring reliable protection for your three-phase system.

• Poles: 3-Pole
• Mounting: Bolt-On
• Part number: QJ23B20000S01

Important note: Confirm fit and ratings before ordering. The part number is the best reference for compatibility across Siemens systems, helping you avoid mismatches and ensure proper electrical protection in your panel.

Ideal use cases

• Maintenance and service: quickly replace a worn or failed breaker in three-phase configurations to minimize downtime.
• Retrofit projects: upgrade or align existing Siemens equipment with a compatible, OEM-grade breaker that fits your panel’s architecture.
• New installations: suitable for three-phase panels that require secure bolt-on mounting and dependable protection.

What makes this breaker stand out

• OEM-grade compatibility: designed to integrate smoothly with Siemens panels, reducing guesswork during installation and service.
• Secure bolt-on mounting: delivers solid mechanical retention in environments subject to vibration or movement.
• Specifically chosen for Siemens ecosystems: when you need a replacement that mirrors the original protection characteristics, this unit aligns with your system’s design intent.

Practical tips for installers and buyers

• Keep the QJ23B20000S01 part number handy during inventory and purchasing to ensure exact compatibility.
• Before installation, verify that the breaker’s specifications align with your panel’s requirements as documented for this model.
• Store spare breakers in a clean, dry area to maintain insulation integrity and reliable performance when needed.

For reliable, purpose-built circuit protection in three-phase systems, the Siemens QJ23B20000S01 3-Pole Bolt-On breaker delivers precise compatibility, secure installation, and durable performance you can trust in maintenance, retrofit, and replacement scenarios.