Siemens QN2175R - 175 A, 240 V, 2-Pole Plug-In Circuit Breaker | AmpState

Meet the Siemens QN2175R — a 175 A, 240 V, 2-pole plug-in molded case circuit breaker designed to provide dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. Its plug-in form delivers a quick, tool-free swap when upgrades or maintenance are needed, keeping your electrical system up and running with minimal downtime.

The QN2175R uses a thermal-magnetic trip unit to deliver stable, repeatable protection across a range of temperatures and load conditions. This means fewer nuisance trips on everyday surges, while still delivering swift responses to true short-circuit events, helping protect wiring, equipment, and people.

Designed to work in harmony with matching Siemens OEM load centers and panelboards, this 2-pole breaker is ideal for residential, commercial, and light industrial applications. Its two-pole design is perfect for multiwire branch circuits and shared-neutral feeders, providing coordinated protection where it matters most.

Key specifications

• Amperage Rating: 175 A
• Voltage Rating: 240 V
• Poles: 2
• Mounting: Plug-in
• Type: Thermal-magnetic molded case circuit breaker
• Part Number: QN2175R
• Application: Branch circuit overcurrent and short-circuit protection in panelboards and load centers

Why this matters in real-world use: A 175 A rating supports higher-load branches without sacrificing protection, making it suitable for feeders and subcircuits in environments where reliability and quick replacement are priorities. The 240 V specification aligns with standard US panelboard configurations, while the plug-in design reduces installation time and service interruption during panel maintenance or expansion.

Ideal for: Electrical contractors outfitting new installations or performing panel upgrades, building managers maintaining service panels, and dedicated hobbyists working on subpanels where Siemens compatibility ensures a seamless, code-compliant fit.

In short, the Siemens QN2175R provides robust, predictable protection with fast, straightforward installation, backed by Siemens engineering and compatible with your existing panel ecosystem. For projects that demand solid protection, simple service, and enduring performance, this 2-pole plug-in breaker is a precise, reliable choice.