Siemens BQ1B030 - 30 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Siemens BQ1B030 delivers reliable, single-pole protection for branch circuits in panelboards and loadcenters. At 30A and 120V, this bolt-on molded case circuit breaker is built to interrupt fault currents quickly while withstanding everyday panel vibrations, ensuring dependable performance in diverse environments.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection that stays tight under operation, reducing the risk of loose connections and intermittent trips.
• Thermal-magnetic trip unit combines precise thermal overload protection with fast magnetic response for short circuits, delivering stable, repeatable protection without nuisance trips.
• OEM panel compatibility designed to pair with matching Siemens OEM loadcenters and panelboards, helping maintain system integrity and predictable trip curves.
• Versatile, practical design suited for residential, commercial, and light industrial applications where a single-pole 30A protection device is appropriate.
• Durable molded-case construction engineered for long service life in service panels, with straightforward bolt-on installation for quick field replacement.

Key specifications at a glance: Siemens BQ1B030, 30A, 120V, 1-pole, bolt-on mounting, thermal-magnetic molded case circuit breaker. This unit protects against overcurrent and short circuits on branch circuits, helping you maintain panelboard reliability and electrical safety. Ideal for technicians upgrading or stocking panels in homes, small commercial spaces, or light industrial setups where consistent, code-compliant protection is essential.

How it helps you in real-world scenarios: upgrading an existing panel in a retrofit project, replacing a failed breaker in a Siemens-compatible loadcenter, or engineering a new installation that requires a compact, dependable 30A single-pole protective device. By choosing the BQ1B030, you get a trusted Siemens component that prioritizes connection integrity, predictable trip behavior, and compatibility with your panel system—reducing installation guesswork and post-installation concerns.