Siemens BQD6320 - 20 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens BQD6320—a rugged, 20A, 600V three-pole bolt-on molded case circuit breaker engineered for reliable branch circuit protection in panelboards and load centers. Its secure bolt-on mounting delivers a rigid, vibration-resistant bus connection, reducing trip variability in panels that see movement or vibration. The thermal-magnetic trip unit provides stable, repeatable protection against both overloads and short circuits, so your critical circuits stay safeguarded without nuisance trips.

Designed for seamless compatibility, the BQD6320 pairs with matching Siemens OEM load centers and panelboards, delivering predictable performance across residential, commercial, and light industrial environments. Whether upgrading an existing panel or installing new equipment, this breaker offers dependable protection that electricians trust.

• Bolt-on mounting for a solid, vibration-resistant connection that stays secure over time.
• Thermal-magnetic trip unit delivers reliable protection against overloads and short-circuit events with repeatable trip curves.
• 3-pole design provides coordinated protection across three conductors, ideal for 3-phase or multi-wire configurations.
• 600V, 20A rating suited for higher voltage panel boards and a range of commercial and light industrial applications.
• OEM compatibility ensures smooth integration with Siemens panelboards and similar Siemens-based assemblies for consistent performance.

Technical snapshot

• Manufacturer: Siemens
• Part Number: BQD6320
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 20A
• Voltage Rating: 600V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases include protecting three-conductor branches in residential service panels, commercial distribution panels, or lightweight industrial equipment where reliable, common-trip protection is essential. When you need a dependable, purpose-built breaker that aligns with Siemens panels and delivers solid performance in demanding environments, the BQD6320 stands out with its secure mounting, robust protection strategy, and clear fit in standard panel architectures.