Siemens Q120AFH 120A 1-Pole 240 V Circuit Breaker

Introducing the Siemens Q120AFH 120A 1-Pole 240 V Circuit Breaker — a purpose-built protection device crafted for reliable performance in compatible Siemens panels. With a 120-amp current rating and a single-pole design, it provides precise overcurrent protection for 240-volt circuits, helping to safeguard wiring and connected equipment.

Key specifications

• Part Number: Q120AFH
• Current rating: 120 A
• Poles: 1
• Voltage rating: 240 V

Why this breaker stands out

The Siemens Q120AFH belongs to the trusted Q-series family, engineered for dependable trip performance and straightforward field replacement in compatible load centers. Designed specifically for 240 V circuits, it delivers clear, reliable protection for single-pole installations that demand robust current interruption up to 120 amps.

Ideal use cases

• Residential and light commercial 240 V circuits requiring protection up to 120 A
• Upgrading panels that accept Siemens Q-type breakers to improve circuit safety and reliability
• Dedicated circuits for high-demand appliances and equipment wired for 240 V in compatible Siemens panels

Practical considerations and tips

• Ensure your electrical panel accepts Q-series breakers and that the Q120AFH is the correct model for your setup
• Always shut off main power and follow the panel’s installation instructions when replacing a breaker
• Use this breaker to protect wiring and devices on 240 V circuits, helping to prevent overloads and potential damage

When you need dependable, clearly labeled protection for 240 V circuits up to 120 A, the Siemens Q120AFH 1-Pole 240 V Circuit Breaker is a precise, long-lasting choice that aligns with Siemens’ proven reliability and ease of maintenance in everyday electrical installations.