Siemens BQ1B030H - 30 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Introduce trusted protection for your electrical system with the Siemens BQ1B030H—a 30A, 120V, 1-pole bolt-on molded case circuit breaker designed to shield branch circuits in panelboards and load centers. Built for durability and consistent performance, this device delivers decisive overcurrent and short-circuit protection where you need it most, in both home and light commercial environments.

• Secure bolt-on mounting for a rigid, vibration-resistant bus connection that stays solid under demanding conditions.
• Thermal-magnetic trip unit provides stable, repeatable protection against overcurrent and short circuits, reducing nuisance trips and ensuring dependable operation.
• OEM-compatible design crafted to work with matching Siemens load centers and panelboards for a seamless, plug‑and‑play fit.
• Versatile applications suitable for residential, commercial, and light industrial circuits, offering reliable protection across a range of installations.

Key specifications

• Manufacturer: Siemens
• Part Number: BQ1B030H
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 30A
• Voltage Rating: 120V
• Number of Poles: 1
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

• Residential panelboards where a dedicated 30A branch circuit protection is required for high-draw appliances or circuits.
• Commercial distribution boards needing reliable, vibration-resistant breakers in shared spaces like offices or retail environments.
• Light industrial installations where secure mounting and predictable trip characteristics minimize downtime and maintenance.

Installation and compatibility

The BQ1B030H is engineered for bolt-on installation and is designed to pair with matching OEM load centers and panelboards. When wiring a new circuit or upgrading an existing panel, this breaker provides a straightforward, dependable upgrade path that aligns with Siemens’ system architecture, helping you maintain consistent protection across your electrical distribution.

For professionals and seasoned DIYers alike, the Siemens BQ1B030H offers a precise, durable solution for protecting branch circuits against overcurrent and short-circuit events—delivering peace of mind in a compact, single-pole package from AmpState.