Siemens HQR23B225 - 225A, 3-Pole, Circuit Breaker

Introducing the Siemens HQR23B225 — a robust 225A, 3-Pole circuit breaker engineered for heavy-duty power distribution. Designed to slot into panelboards, switchboards, and control panels, it delivers dependable overcurrent protection for demanding industrial, commercial, and OEM applications.

Key specs at a glance

• Current rating: 225 A
• Poles: 3-Pole (three-phase)
• Breaker type: Circuit Breaker

Why this 3-pole, 225A breaker matters

In three-phase electrical systems, a 3-Pole circuit breaker like the HQR23B225 protects all three conductors simultaneously. The 225A rating is well-suited for feeding large feeders, motor circuits, and distribution segments in panelboards and motor control centers, helping prevent costly damage from overloads and short circuits. This unit is built for long service life in environments where reliability is non-negotiable.

Ideal applications

• Industrial panelboards and switchboards with high-current loads
• Motor control centers and equipment bays requiring robust phase protection
• Commercial power distribution where a compact, reliable three-phase breaker is needed
• OEM assemblies that require a Siemens-compatible, high-capacity protection device

Unique value propositions

• Siemens compatibility: Seamlessly integrates with Siemens distribution panels, ensuring clean electrical protection and consistent trip characteristics within HQR families.
• Three-phase coverage: The 3-pole design provides synchronized protection across all three phases, reducing the risk of unbalanced faults.
• High-current protection: 225A capacity supports large feeders and motor circuits while still fitting standard enclosure footprints.
• OEM-ready: A trusted choice for equipment manufacturers needing reliable protection in custom panels and control gear.

Installation and compatibility tips

Before installing, confirm that your panelboard or switchgear is designed for the HQR series and three-pole, 225A protection. Ensure proper torque on connections and follow all relevant electrical codes and standards. The HQR23B225 is intended for use where safe operation and overcurrent protection are essential in distribution panels and motor control centers.

How it compares to lighter-duty options

For facilities with multiple high-current feeders or demanding motor loads, a 3-pole 225A breaker provides cohesive three-phase protection that smaller, two-pole devices cannot deliver. This unit reduces wiring complexity and ensures all phases trip together, improving safety and minimizing downtime in critical power paths.