Siemens BQ3B030 - 30 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Siemens BQ3B030 is a robust 30A, 240V, 3-pole bolt-on molded case circuit breaker designed to safeguard panelboards and load centers with dependable branch circuit overcurrent and short-circuit protection. Built for demanding environments, this device combines secure mounting, precise protection, and seamless compatibility in a single, reliable package.

Key advantages that set the BQ3B030 apart

• Secure bolt-on mounting for a rigid, vibration-resistant connection to the bus bars—minimizing loose connections that can lead to overheating and trips in electrical enclosures.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance against both overloads and short circuits, helping protect wiring and connected equipment from damage.
• Three-pole, 240V design ideal for 3-phase systems and multi-circuit protection in commercial and light industrial settings, while still suitable for residential applications that require robust 3-pole protection.
• OEM-compatible performance engineered to work with matching Siemens OEM load centers and panelboards, ensuring a seamless fit and reliable operation within your existing electrical distribution system.

What problems does it solve?

• Prevents electrical fires and equipment damage by quickly interrupting fault currents at their source.
• Reduces maintenance headaches with a durable, vibration-resistant design that stays secure in challenging environments.
• Provides precise, predictable tripping behavior, minimizing nuisance trips and maintaining steady operation for critical loads.

Ideal for

• Electricians and facilities managers configuring subpanels, feeders, or new installs in residential, commercial, and light industrial applications.
• Projects that require reliable, Siemens-designed protection within panelboards and load centers that match OEM specifications.

Technical snapshot

• Manufacturer: Siemens
• Part Number: BQ3B030
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 30A
• Voltage Rating: 240V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

With the Siemens BQ3B030, you’re choosing a trusted, purpose-built solution that aligns with Siemens panelboards and load centers, delivering dependable protection for everyday electrical demands. Whether upgrading an aging installation or stocking spare parts for ongoing service, this 3-pole, 30A bolt-on breaker provides reliable performance, peace of mind, and a clear path to compliant, safe electrical distribution.