Siemens Q2020 two-20-amp single-pole QT breaker shown, enabling reliable protection in compatible panels.

SIEMENS

Siemens Q2020 Two 20-Amp Single-Pole 120V QT Circuit Breaker

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$25.61

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Why customers choose TaskHolt Tools

Meet the Siemens Q2020 two 20-Amp single-pole QT circuit breaker, designed to plug into compatible Siemens load centers and provide dependable overload and short-circuit protection with a compact footprint. This duplex 1/2-inch frame fits where QT-type breakers are specified, helping you add circuits without crowding the panel.

Why choose the Q2020

  • Plug-in QT type; verify acceptance with the panel diagram
  • Easy plug-in connections in Siemens load centers and meter combos
  • Compatible with Siemens PL and ES series load centers
  • Thermal-magnetic protection for reliable response to faults
  • Accepts #14-6 AWG copper or aluminum wire
  • Space-saving design that helps you optimize panel layout
  • 10,000 AIC interrupting rating for robust fault handling
  • UL Listed for safety compliance

Duplex design and practical uses

The duplex design places two independent single-pole breakers into the space typically needed for one. This makes it a practical option when you’re adding circuits in a panel with limited spaces, or when upgrading an existing panel that requires additional protection for new loads.

In real-world terms, you might use this breaker to support a new lighting circuit, an expanded outlet run, or a dedicated small-appliance circuit, all while maintaining known protection levels across circuits. It’s a targeted option when QT compatibility is specified by the panel supplier.

Installation and safety tips

  • Turn off main power and verify no voltage before handling breakers
  • Consult the panel diagram to ensure QT acceptance
  • Use the correct wire gauge (#14-6 AWG Cu/Al)
  • Seat the duplex breaker fully into the correct slot(s)

FAQ

Q: Which panels accept the Siemens Q2020 QT breakers?

A: Only panels that specify QT-compatible breakers; check the panel diagram to confirm acceptance.

Q: How does the duplex design save space?

A: Two independent single-pole breakers fit into one 1/2-inch space, freeing panel slots for new circuits.

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