Siemens | QJ3B225H00S01 | Circuit Breaker | 225A | 3-Pole | 240V | Bolt-On

Meet the Siemens QJ3B225H00S01 circuit breaker—a robust bolt-on solution engineered for demanding 240V three‑phase systems. With a 225A rating across 3 poles, this unit delivers dependable overcurrent protection for feeders, motors, and distribution panels in industrial and commercial environments. It's an ideal choice for maintenance, retrofit, or replacement projects where exact compatibility matters, and the part number is the best reference for ensuring a correct fit.

• Amperage: 225A
• Poles: 3-Pole
• Voltage: 240V
• Mounting: Bolt-On
• Part Number: QJ3B225H00S01
• Manufacturer: Siemens

Why this Siemens circuit breaker matters

Designed for reliable protection in 3‑phase networks, the QJ3B225H00S01 helps safeguard critical equipment and minimize downtime by providing precise, high‑current interrupt capability where it’s needed most. The bolt‑on design ensures a secure, vibration‑resistant installation, which is especially valuable in busy electrical rooms and industrial environments. When you’re upgrading or replacing existing gear, this unit aligns with Siemens’ established protection standards to support consistent performance over the long term.

Ideal use cases

• Retrofit or replacement in existing Siemens bolt‑on panelboards and distribution systems
• New installations for commercial or industrial facilities requiring 3‑phase, 240V protection
• Service panels and switchgear where a high‑current, 3‑pole breaker is needed

Installation and compatibility tips

Before ordering, confirm fit and ratings—the QJ3B225H00S01 part number is your best reference for compatibility. Ensure your panel supports bolt‑on breakers in the QJ3 family and that the bus bar layout matches the unit’s mounting pattern. Adhere to local electrical codes, and follow the panel manufacturer’s torque specs and safe de‑energization procedures during installation and commissioning.

For reliable, scalable protection in 240V three‑phase systems, the Siemens QJ3B225H00S01 bolt‑on circuit breaker stands out as a purpose‑built solution designed to integrate with compatible Siemens equipment and deliver dependable performance when it matters most.