Siemens Q2020NC 20 Amp 2 Pole Non-Current-Limiting Plug-In Circuit Breaker

The Siemens Q2020NC is a 20-amp, 2-pole non-current-limiting plug-in circuit breaker built for use in Siemens QP-style load centers and compatible panels. The "NC" designation indicates this is a non-current-limiting breaker, making it the correct replacement choice for panels that do not require current-limiting protection. It delivers dependable thermal-magnetic overcurrent protection for 240V branch circuits in residential and light commercial applications.

Key Specifications

• Amperage: 20 Amp
• Poles: 2 Pole
• Voltage Rating: 120/240V AC
• Interrupt Rating: 10,000 AIC
• Type: Plug-In (QP Series) — Non-Current-Limiting (NC)
• Compatible Panels: Siemens QP-style load centers; also fits Murray and certain ITE panels
• Standards: UL Listed, CSA Certified
• Trip Type: Thermal-magnetic

Common Applications

• 240V branch circuits in residential panels
• Small electric heating units
• Sump pumps and well pumps
• Garage sub-panels and workshop circuits
• General 240V appliance circuits

Why the "NC" Designation Matters

When replacing a circuit breaker, matching the correct type is critical for both safety and code compliance. The Q2020NC is specifically designed for installations where a non-current-limiting breaker is required. Using the wrong type can result in a failed inspection or unsafe installation. If you're unsure which type your panel requires, consult a licensed electrician or refer to your panel's documentation.

Siemens QP Series Reliability

Siemens QP breakers are among the most widely installed circuit breakers in North America. Known for their consistent trip accuracy and long service life, they are a trusted choice for electricians and homeowners alike. The plug-in design allows for straightforward installation in compatible load centers.

Note: Installation must be performed by a licensed electrician in compliance with the Canadian Electrical Code (CEC) and applicable local regulations. Always verify panel compatibility and breaker type requirements before installation.