Siemens BQD270 - 70 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Siemens BQD270 is a 70A, 480V, 2-pole bolt-on molded case circuit breaker designed to deliver dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. Built for reliability in demanding electrical environments, this breaker combines robust mounting with precise protective action to keep your systems running smoothly.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, helping maintain reliable electrical continuity in panels subject to field vibrations or movement.
• Thermal-magnetic trip unit delivers stable, repeatable protection for both overcurrent and short-circuit conditions, reducing nuisance trips and protecting equipment when demand spikes occur.
• OEM-compatible design is engineered to work with matching Siemens load centers and panelboards, simplifying replacement and ensuring consistent performance within existing installations.
• Versatile application suitable for residential, commercial, and light industrial environments where 480V distribution is used and dependable protection is essential.

Technical Specifications

• Manufacturer: Siemens
• Part Number: BQD270
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 70A
• Voltage Rating: 480V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why choose the Siemens BQD270

For panel builders and electricians who value predictable protection and a seamless integration experience, the BQD270 stands out with its combination of secure mounting, robust trip behavior, and OEM-wide compatibility. It’s designed to minimize downtime during maintenance or upgrades by fitting neatly into Siemens-powered systems and providing dependable protection across a range of commercial and light industrial applications.

Use cases and optimal environments

Deploy the BQD270 in 480V distribution schemes within panelboards and load centers where two-pole protection is needed. It’s well-suited for systems that require solid mechanical mounting, reliable trip performance, and straightforward replacement within Siemens-based electrical architectures. Use cases include protection of branch circuits in service panels, motor control feeders, and building distribution feeders in commercial or light industrial facilities.

In short, the Siemens BQD270 delivers a precise, durable, and compatible bolt-on solution for demanding 480V electrical installations that need dependable, long-term protection without trade-offs in performance.