Siemens | HQR23B250 | Circuit Breaker | 250A | 3-Pole | 240V | 65kA | Bolt-On

Meet the Siemens HQR23B250 circuit breaker — a rugged, bolt-on protective device engineered for 250A, 3-pole protection in 240V three-phase systems. Built for maintenance, retrofit, and replacement projects, it delivers reliable interruption and trip performance when upgrading legacy panels or installing high-demand equipment in demanding industrial environments.

Designed to align with Siemens panels and compatible enclosures, this unit provides a straightforward, secure installation path for critical power feeds. Its bolt-on mounting ensures solid contact and stability in vibration-prone or compact panel layouts, helping keep downtime to a minimum during service or upgrades.

Key specifications

• Amperage: 250A
• Poles: 3-Pole
• Voltage: 240V
• Interrupting Capacity: 65kA
• Mounting: Bolt-On

What makes this breaker unique

• Part number HQR23B250 is the best reference for matching your panel and circuit requirements. Always confirm fit and ratings before ordering to ensure seamless replacement or retrofit.
• 250A capacity paired with 65kA interrupting capability offers robust protection for demanding three-phase loads, reducing the risk of fault-related damage.
• Bolt-on design simplifies field service and replacement in compatible Siemens panels, minimizing downtime and streamlining maintenance workflows.

Ideal for

• Maintenance and retrofit projects in commercial and industrial facilities
• Replacement of aging or worn breakers in 240V three-phase distributions
• Upgrading electrical systems to meet present-day protection requirements without changing panel architecture

Practical guidance and use cases

Use the Siemens HQR23B250 when you need reliable, three-phase protection for motor drives, processing lines, or critical power feeders operating at 240V. Its 65kA interrupting capacity provides a safety margin for systems with higher fault current potential, while the bolt-on mounting keeps installation straightforward in compatible panels. Always verify fit and ratings against your panel documentation and use the official part number as your primary compatibility reference.

Whether you're performing a scheduled retrofit, replacing a failed breaker, or planning a panel upgrade, this 3-pole, 250A bolt-on Siemens breaker delivers dependable protection with a clear upgrade path for existing infrastructure.