Siemens | Q24020CT2NC | Circuit Breaker | 40A | 2-Pole | 240V

When you need reliable protection for 240V circuits in a Siemens panel, the Siemens Q24020CT2NC circuit breaker stands out with precise 40-amp, 2-pole performance. This device is designed for maintenance, retrofit, and replacement tasks where exact specs matter, delivering trustworthy interruption when faults occur.

Key specifications

• Amperage: 40 A
• Poles: 2-Pole
• Voltage rating: 240 V
• Part number: Q24020CT2NC

What makes it essential? If you're updating an aging panel, performing a retrofit, or replacing a tripped breaker, this model provides a direct, one-for-one fit for Siemens panels that require a 40A, 240V two-pole device.

Note: Confirm fit and ratings before ordering. The part number is the best reference for compatibility.

Ideal use cases

• Residential or light commercial 240V circuits requiring 40A protection
• Retrofits in Siemens panels where a 2-pole 40A breaker is specified
• Replacement for failed breakers in systems designed around Q-series components

Why this Siemens breaker solves the right problems

• Precise 40A protection for circuits feeding high-demand appliances and equipment
• Two-pole design ensures simultaneous disconnection of both hot legs on a 240V circuit, enhancing safety during faults
• Direct compatibility with Siemens Q-series panels and related equipment, streamlining installation and reducing guesswork

Practical installation tips

• Power down the main service disconnect and verify the panel label to confirm correct breaker type
• Use proper safety gear and insulated tools; ensure the breaker is a precise 1-for-1 replacement for your panel
• Consider keeping a spare Q24020CT2NC on hand for upcoming maintenance, panel refreshes, or unforeseen repairs