Siemens BQD380 - 80 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens BQD380 is a robust 3-pole bolt-on molded-case circuit breaker engineered to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. With an 80 A rating at 480 V, this device provides precise, reliable protection where it matters most.

• Secure bolt-on mounting creates a rigid, vibration-resistant bus connection that stays tight through operation, improving long-term reliability in demanding electrical environments.
• Thermal-magnetic trip unit offers stable, repeatable protection performance, responding to both overloads and short circuits with consistent trip characteristics across temperature and wear.
• OEM compatibility designed to pair seamlessly with matching Siemens OEM load centers and panelboards, ensuring a clean fit and straightforward integration during upgrades or replacements.
• Versatile application suitable for residential, commercial, and light industrial installations, delivering dependable protection where you need it most.

Technical specifications at a glance

• Manufacturer: Siemens
• Part Number: BQD380
• Type: Thermal-magnetic molded-case circuit breaker
• Amperage Rating: 80 A
• Voltage Rating: 480 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Who benefits from the Siemens BQD380

electricians, facility managers, and maintenance teams who assemble or upgrade panelboards and load centers will appreciate the combination of secure mounting, predictable trip behavior, and OEM compatibility. It’s an ideal choice for equipment rooms, commercial spaces, or light-industrial environments where robust protection and reliable operation are essential.

Why this bolt-on breaker stands out

Unlike generic substitutes, the BQD380 is designed for seamless integration with Siemens’ own load centers, reducing installation guesswork and ensuring consistent performance across the system. The bolt-on design minimizes connection looseness in the field, while the thermal-magnetic trip ensures that both sustained overloads and short-circuit events are detected quickly and cleared accurately. Paired with the right Siemens panelboard, this breaker helps maintain electrical safety, protect downstream equipment, and minimize nuisance trips in varying operating conditions.

Engineered for practical, real-world use, the Siemens BQD380 is a reliable, ready-to-stock solution for projects that require a trusted, performance-driven 3-pole protection device. Stocked by AmpState, it’s a dependable choice for upgrading or replacing protection in residential, commercial, and light industrial electrical systems.