Siemens | HGB3K110B | Circuit Breaker | 110A | 3-Pole | 600V | Bolt-On

Meet the Siemens HGB3K110B Circuit Breaker, a robust three-pole protector engineered for demanding 600V systems. With a 110A rating, this device delivers reliable overload and short-circuit protection for three-phase equipment, motor drives, and distribution panels.

Key specifications

• Amperage: 110 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Mounting: Bolt-On
• Part number: HGB3K110B

Why this 3-Pole Bolt-On breaker stands out

The 3-pole design ensures simultaneous disconnection of all three phases, delivering coordinated protection for three-phase circuits. The bolt-on mounting provides a secure, vibration-resistant connection in compatible Siemens panels and switchgear, making it a practical choice for retrofit, maintenance, or replacement projects where rapid, clean installation matters.

Ideal use cases

• Retrofit or upgrade projects in industrial control panels that require 110 A per phase and a 600 V operating environment
• Maintenance replacements in legacy Siemens switchgear to maintain system protection standards
• New installations in three-phase distribution setups where a compact, bolted solution is preferred for reliability and serviceability

Compatibility and installation notes

Before ordering, verify that HGB3K110B matches your panel’s specifications. The part number is the best reference for compatibility, ensuring correct mounting, ratings, and trip characteristics. Confirm that your enclosure supports bolt-on breakers and that the wiring and bus connections align with the device’s three-pole, 600 V rating.

Tip: Keep a record of the exact part number for future replacements and service intervals to minimize downtime during maintenance cycles.