Siemens QJ23B200H - 200 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens QJ23B200H—a robust 200A, 240V, 3-pole bolt-on molded case circuit breaker designed to guard every branch circuit in panelboards and load centers. Built for enduring performance in homes, offices, and light industrial setups, this breaker delivers dependable overcurrent and short-circuit protection when it matters most.

• Bolt-on mounting provides a rigid, vibration‑resistant connection to the bus, helping maintain reliable trip performance even in environments with equipment vibration or movement.
• Thermal‑magnetic trip unit combines slow-blow current handling with fast magnetic protection, delivering stable, repeatable protection across a wide range of loads and inrush conditions.
• OEM‑compatible design is engineered to pair with matching Siemens load centers and panelboards, ensuring seamless integration and reliable bus connections.
• 3-pole configuration protects 3‑phase circuits, promoting balanced protection for all phases and reducing the risk of uneven fault conditions.
• Versatile for multiple settings ideal for residential, commercial, and light industrial applications where dependable branch‑circuit protection is essential.

Why this matters for your panel

The QJ23B200H is more than a breaker—it's a strategic component that supports system uptime and safety. By combining a sturdy bolt‑on mount, precise thermal‑magnetic protection, and OEM compatibility, it minimizes downtime during maintenance and simplifies panel servicing. Its 200A rating makes it suitable for feeders and large branch circuits, while the 3‑pole design ensures comprehensive protection in three‑phase installations.

Key specifications

• Manufacturer: Siemens
• Part Number: QJ23B200H
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage Rating: 200A
• Voltage Rating: 240V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short‑circuit protection

Practical use cases and installation mindset

• Protect 3‑phase equipment and feeders in commercial spaces, data rooms, or light industrial panels where reliable trip characteristics are critical.
• Upgrade or retrofit existing panelboards that require a compatible, high‑capacity bolt‑on breaker to maintain system integrity.
• Pair with Siemens load centers designed for bolt‑on devices to ensure a clean, secure bus connection and straightforward servicing.
• Ideal for applications where vibration is a factor, such as equipment rooms with heavy mechanical loads or HVAC banks, thanks to its rigid mounting approach.

Choose the Siemens QJ23B200H when you need durable, precise protection for large 3‑phase circuits backed by engineering that aligns with Siemens panel ecosystems. It’s a purpose‑built solution for reliable overcurrent and short‑circuit defense that electricians and facility managers can trust for long‑term performance.