Siemens BQD330 - 30 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens BQD330, a 30A, 480V, 3-pole bolt-on molded case circuit breaker built for dependable branch-circuit protection in panelboards and loadcenters. When reliability and precise protection matter, this unit delivers a robust solution designed to fit seamlessly into Siemens ecosystems.

• Secure bolt-on mounting: A rigid, vibration-resistant bus connection that stays put, reducing movement and wear in challenging installation environments.
• Thermal-magnetic trip unit: Combines overload protection with fast magnetic action for short-circuit events, delivering stable, repeatable protection performance.
• OEM-compatible: Engineered to align with matching Siemens load centers and panelboards for straightforward installation and reliable coordination.
• Versatile application: Ideal for residential, commercial, and light industrial settings where reliable 30A protection at 480V is required.
• 3-pole configuration: Suitable for three-phase circuits with coordinated, common-trip protection in distribution panels.

This device provides essential branch circuit overcurrent and short-circuit protection with a design focused on longevity and dependable operation. The bolt-on installation preserves bus integrity and minimizes movement, while the thermal-magnetic mechanism reduces nuisance trips and ensures prompt response during fault conditions, safeguarding wiring and downstream equipment.

Technical specifications

• Manufacturer: Siemens
• Part number: BQD330
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 30 A
• Voltage rating: 480 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal for upgrading panel infrastructure or stocking a critical protection component for maintenance-ready electrical rooms, the Siemens BQD330 delivers reliable, industry-standard performance that aligns with Siemens panelboards and loadcenters. Whether wiring a commercial space, retail environment, or light industrial facility, this 3-pole breaker helps keep circuits safe, compliant, and ready for service.