Siemens QT1-2020 20A 2-Pole 240 V Circuit Breaker

Meet the Siemens QT1-2020 20A 2-Pole 240 V Circuit Breaker—that dependable safeguard designed to protect your 240V circuits with precision and reliability. Built for Siemens QT-series panels, this breaker delivers clean, predictable protection for two-pole loads that demand solid performance.

• Part Number: QT1-2020 — a direct, compatible replacement within the Siemens QT system.
• Current rating: 20 A — ideal for dedicated 240V circuits that require steady, reputable protection without overloading the branch circuit.
• Poles: 2 — interrupts both hot conductors for full circuit isolation on 240V loads.
• Voltage rating: 240 V — suitable for typical 240V residential and light commercial applications.

Who should consider this breaker? It’s well-suited for homeowners, technicians, and facility managers who maintain Siemens panels and need a reliable 2-pole, 240V solution for loads such as air handling equipment, 240V tool circuits, or other appliances that require a dedicated 20A two-pole protection.

Why this specific QT1-2020 makes a difference:

• Designed for seamless compatibility with QT-series panels, enabling quick upgrades or replacements without panel reconfiguration.
• Two-pole, 240V protection ensures both hot lines are interrupted in fault conditions, helping safeguard connected equipment and reducing shock risk.
• Siemens engineering and the QT family’s proven track record translate to dependable performance and consistent trips when needed.

Practical guidance for use and installation:

• Confirm that your electrical panel accepts QT-series breakers before installation to ensure a proper fit and maximum safety.
• Always power down the main disconnect and test circuits before removing or installing a breaker.
• Keep a spare QT1-2020 on hand for efficient maintenance or panel updates, minimizing downtime for critical 240V circuits.