Siemens | BQ3B020HL | Circuit Breaker | 20A | 3-Pole | 240V

Choose reliability for your three‑phase protection with the Siemens BQ3B020HL Circuit Breaker. This 20A, 3‑pole device is purpose‑built for 240V systems, delivering precise, predictable protection for motors, equipment, and control panels in commercial or light industrial environments. When you’re maintaining, retrofitting, or replacing a circuit, this breaker provides a trusted Siemens‑origin option that aligns with your existing panel architecture.

Key specifications

• Amperage: 20A
• Poles: 3‑Pole
• Voltage: 240V
• Part number: BQ3B020HL

Why this Siemens breaker stands out

• Three‑pole protection for 3‑phase systems: Simultaneous disconnection of all three conductors in fault conditions helps prevent equipment damage and improves safety in 3‑phase circuits.
• Direct compatibility with Siemens installations: Built to match Siemens panels and load centers, promoting consistent fit and predictable performance during upgrades or replacements.
• Clear fit and compatibility reference: The part number BQ3B020HL is the most reliable reference when confirming compatibility with your setup.

Ideal use cases

• Retrofits and replacements in existing 3‑phase 240V electrical architectures
• Maintenance upgrades in commercial or light industrial environments with Siemens gear
• Replacement for aging breakers in three‑phase motor control applications and 240V distributions

How to verify compatibility

• Ensure the circuit requires 20A protection and a 3‑pole configuration for 240V systems.
• Cross‑check the panel labeling and the Siemens panel family to confirm form factor compatibility.
• Use the part number BQ3B020HL as the definitive reference when ordering to match specifications precisely.

Important note: Confirm fit and ratings before ordering. The part number is the best reference for compatibility, helping you avoid mismatches and ensuring reliable protection from the moment you install the BQ3B020HL.