Siemens BQ3B02000S01 - 20 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Introducing the Siemens BQ3B02000S01 — a 20A, 240V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for steady performance in dynamic electrical environments, this device combines rugged mounting with precise protection to keep your circuits safe and running smoothly.

Why the Siemens BQ3B02000S01 stands out

• Secure bolt-on mounting for a rigid, vibration-resistant bus connection that stays engaged under demanding conditions, reducing the chance of loose connections over time.
• Thermal-magnetic trip unit delivers stable, repeatable protection by reacting to both sustained overloads and instantaneous short circuits, helping to minimize nuisance trips while safeguarding wiring and equipment.
• OEM compatibility designed to work with matching Siemens OEM load centers and panelboards, ensuring a proper fit, coordinated trip characteristics, and streamlined installation.
• Versatile 3-pole design provides comprehensive protection for balanced three-phase circuits, ideal for applications where coordinated phase protection matters.

Who this is for and practical use cases

• Ideal for residential upgrades, commercial panel installations, and light industrial distribution where reliable three-phase protection is required.
• Use in panelboards and load centers to protect branch circuits feeding motors, HVAC equipment, lighting, and other demanding loads.
• Suitable for retrofit projects where existing Siemens bolt-on breakers and OEM enclosures are specified, helping you maintain system consistency and compliance.

Key specifications at a glance

• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 20A
• Voltage rating: 240V
• Poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection
• Manufacturer/Part number: Siemens BQ3B02000S01

Benefits that matter in real-world terms

• Reliable protection that minimizes downtime: the thermal-magnetic mechanism responds quickly to short circuits while accommodating normal load fluctuations.
• Long-term connection integrity: secure bolt-on mounting supports consistent bus contact, reducing arc risk and maintaining protection performance over time.
• Streamlined installations and maintenance: compatibility with Siemens OEM equipment simplifies sourcing, inventories, and service across panelboards and load centers.

Upgrade or install with confidence using the Siemens BQ3B02000S01 20A 240V 3-pole bolt-on circuit breaker — a thoughtful choice for dependable, code-aligned protection in modern electrical distributions.