Siemens QE115 - 15 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState

Meet the Siemens QE115, a 15A, 120V, 1-pole plug-in molded case circuit breaker designed to deliver precise branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for fast, tool-free swaps, this breaker minimizes downtime during maintenance or panel upgrades while maintaining reliable protection for your electrical system.

Why the QE115 stands out

• Fast plug-in connection: Quick installation and effortless replacement in compatible Siemens OEM load centers and panelboards, helping you get circuits back online with minimal disruption.
• Thermal-magnetic trip unit: Combines a thermal sensor for stable, repeatable overload protection with a magnetic trip for immediate response to short circuits, safeguarding wiring and devices.
• Reliable, compatible design: Specifically engineered to fit QE-compatible panelboards and OEM enclosures, ensuring consistent performance and seamless integration.
• Versatile application: Ideal for residential, commercial, and light industrial environments where dependable single-pole protection is needed for lighting, outlets, and small-appliance circuits.

Key specifications

• Manufacturer: Siemens
• Part Number: QE115
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 15A
• Voltage Rating: 120V
• Number of Poles: 1
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases

The QE115 is well-suited for replacing a worn or trip-prone breaker in residential panels, upgrading lighting and small-appliance circuits in small offices, or provisioning lightweight commercial subpanels where quick, reliable protection is essential. Its plug-in design minimizes service interruptions, making it a practical choice for routine panel maintenance and new installations alike.

How it compares and why it matters

Unlike generic replacements, the QE115 is purpose-built for Siemens panelboards and OEM load centers, preserving intended trip characteristics and ensuring compatibility across the QE lineup. The combination of fast installation, a robust thermal-magnetic trip, and OEM-aligned fit translates to predictable protection, faster service, and fewer compatibility concerns when expanding or updating electrical systems.

Tips for best results

• Verify your panelboard is QE-compatible to ensure a secure fit and predictable operation.
• Power down the main disconnect before replacing a breaker, and confirm the new breaker seats firmly in the bus stab positions.
• Use the 15A rating for circuits with lighting, receptacles, and low-current devices to prevent nuisance trips while maintaining safety.