Siemens QAF2120 - 20A, 1-Pole, Circuit Breaker

Meet the Siemens QAF2120—a focused, reliable 20A, 1-Pole circuit breaker designed to shield electrical systems from overcurrent in real-world environments. Its compact, single‑pole footprint makes it a practical fit for dense panel enclosures while delivering dependable protection for critical circuits in distribution panels, switchboards, and control panels.

What makes it stand out

• 20 A current rating provides precise protection for single‑phase circuits, helping prevent overheating and electrical faults before they interrupt operations.
• 1-Pole configuration optimizes space and wiring in panelboards and control systems, offering flexible installation in a variety of enclosure layouts.
• Versatile applications ideal for industrial, commercial, and OEM settings, supporting reliable protection in distribution panels and motor control centers.
• Durable, dependable operation designed to maintain safe performance in demanding environments where uptime matters.
• Seamless integration aligns with Siemens protection schemes and maintenance workflows, simplifying sourcing and replacement within existing systems.

Practical use cases

• Panelboards and switchboards in manufacturing facilities, commercial buildings, and utility rooms
• Control panels for automation, machinery, and process equipment
• OEM equipment where compact, single‑pole protection is required
• Motor control centers needing dedicated protection for individual circuits

Why choose this breaker? It delivers straightforward, predictable protection for critical circuits, helping you minimize downtime and safeguard equipment in distribution panels and control centers. The QAF2120 is a practical, no-nonsense solution built for reliability in demanding industrial and commercial environments.

Key specifications

• Current rating: 20 A
• Poles: 1-Pole
• Breaker type: Circuit Breaker