Siemens | QJ23B225A01 | Circuit Breaker | 225A | 3-Pole | 240V | Bolt-On

Siemens QJ23B225A01 is a rugged, bolt-on circuit breaker designed for reliable three‑phase protection in demanding industrial and commercial panels. With a 225 A rating and 3-pole configuration at 240 V, this unit is purpose-built for retrofit, maintenance, and replacement projects where exact specifications matter.

Key specifications

• Amperage: 225 A
• Poles: 3-Pole
• Voltage: 240 V
• Mounting: Bolt-On
• Part number: QJ23B225A01

Why this Siemens breaker stands out

The QJ23B225A01 is built for durability and dependable performance in three‑phase systems. Its bolt‑on design provides a secure, vibration‑resistant mounting that’s well-suited for panels where space is tight and reliability is non‑negotiable. Because it’s a Siemens part with a very specific form factor, it’s especially valuable for upgrades or replacements in panels that require the QJ series footprint and ratings.

Ideal use cases

• Maintenance and service of existing Siemens panels that require a like‑for‑like 225 A, 3‑pole, 240 V solution
• Retrofit projects where upgrading to a higher-current three‑phase breaker is needed
• Replacement of worn or failed breakers in industrial or commercial electrical systems

Compatibility and installation notes

Before ordering, verify fit and ratings for your specific panel and system. The part number QJ23B225A01 is the most reliable reference for compatibility, ensuring the breaker aligns with the bus, mounting hardware, and wiring configuration of Siemens panels designed for bolt‑on three‑pole devices.

Practical guidance for best results

• Inspect the mounting area and bus connections for signs of wear or corrosion during replacement to ensure a solid, long‑lasting fit
• Follow standard safety procedures: de‑energize the panel and verify there is no residual voltage before handling breakers
• Tighten mounting hardware to secure the breaker and maintain a stable connection under normal operating conditions

Who benefits from this product

Electrical distribution technicians, facilities engineers, and panel upgrade teams tasked with maintaining or expanding three‑phase power systems will find the Siemens QJ23B225A01 a precise, compatible, and dependable choice when the project calls for a 225 A, 3‑pole, 240 V bolt‑on breaker.

Equip your electrical system with trusted Siemens protection—select the QJ23B225A01 for accurate compatibility, solid protection, and a straightforward retrofit path.