Siemens BQ1B02000S01 20A 1P 120V Circuit Breaker, Shunt Trip | AmpState

Siemens BQ1B02000S01 is a 1-pole, 20A, 120V circuit breaker with shunt-trip, built for reliable circuit protection in panelboards, load centers, and electrical distribution networks. Designed for everyday electrical work, this device combines standard protection with remote trip capability to meet safety and control needs across commercial and residential installations.

It’s the ideal replacement part and a smart spare to keep your BOM aligned with the original part number. The shunt-trip feature provides remote interruption, allowing quick, external shutdown when triggered by safety systems—perfect for coordinating with building management, fire alarms, or emergency controls without opening the panel.

Key features

• 1-pole, 20-amp, 120-volt circuit protection from Siemens
• Shunt-trip capability for remote, external tripping
• Designed for seamless replacement in panelboards and load centers, preserving BOM integrity
• Part number BQ1B02000S01 with trusted Siemens reliability
• Available from AmpState, with support to verify fit and compatibility

Why this matters

In electrical distribution, compatibility and quick service are critical. This BQ1B02000S01 delivers dependable protection while offering the flexibility of remote tripping, enabling safer, faster responses to alarms or safety signals. By choosing a genuine Siemens part, you ensure consistent performance, easier maintenance, and fewer surprises during upgrades or replacements.

Use cases and applications

- Replacement projects: drop-in compatibility that keeps the original BOM intact

- Spare parts for maintenance: minimized downtime with ready-to-go protection

- Safety-integrated systems: remote trip integration with fire alarms, emergency shutdowns, and building automation

Technical specs

Part: BQ1B02000S01 • Type: Circuit Breaker • Poles: 1 • Amperage: 20 A • Voltage: 120 V • Features: Shunt-trip

Compatibility & support

Need help matching a part number or confirming compatibility? Message AmpState and we’ll help you confirm fit for your panelboard or load center. This product is readily available from AmpState to simplify sourcing and stocking for ongoing maintenance and upgrades.