Siemens B220 - 20A, 2-Pole, GFCI Ground-Fault Circuit Breaker

Meet the Siemens B220 — a 20A, 2-Pole GFCI Ground-Fault Circuit Breaker engineered for demanding electrical environments. This device delivers precise ground-fault protection while simultaneously interrupting both hot legs on a fault, making it an essential choice for safe, reliable operation in industrial, commercial, and OEM applications.

Why the B220 stands out

• Current rating: 20 amperes, providing robust protection for standard branch circuits, motor loads, and control circuits.
• Poles: 2-Pole design for balanced protection across paired conductors and compatibility with multi‑wire branch circuits.
• Breaker type: GFCI (Ground-Fault Circuit Interrupter) to quickly detect imbalances between live and neutral and disconnect power to prevent shock hazards.
• Flexibility: Optimized for use in panelboards, switchboards, and control panels—perfect for reconfigurations, retrofits, or new builds that rely on Siemens hardware.

The Siemens B220 provides dependable overcurrent and ground-fault protection in a compact, integration-friendly package. Its 2-Pole configuration ensures coordinated protection on dual‑line circuits, helping you maintain safe operation across complex distribution architectures without sacrificing space or compatibility.

Ideal use cases

• Industrial panelboards and motor control centers where reliable 20A protection and quick fault isolation are essential.
• Commercial electrical rooms that require compliant, easy-to-install GFCI protection on critical feeders.
• OEM equipment enclosures needing compact, integrated GFCI protection that aligns with Siemens design ecosystems.

Practical installation and maintenance tips

• Commission the breaker by qualified personnel and follow local codes and Siemens installation guidelines.
• Verify line/load orientation to ensure accurate sensing and reliable tripping behavior during fault conditions.
• Confirm compatibility with your Siemens panelboard family to maximize space efficiency and electrical performance.

What outcomes you can expect

• Rapid detection of ground faults reduces the risk of electric shock and protects connected equipment from damage.
• Streamlined protection in multi-wire branch circuits thanks to the 2-Pole design and coordinated disconnect on fault.
• Simple, reliable GFCI protection that integrates smoothly into existing Siemens distribution systems, cutting downtime and simplifying maintenance planning.