Siemens Q240HH 40A 2P 240V Circuit Breaker, Plug-On | AmpState

Designed for everyday electrical work, the Siemens Q240HH 40A 2P 240V circuit breaker delivers dependable protection for panelboards, load centers, and electrical distribution systems. This plug-on breaker is a straightforward, reliable solution for replacement projects and stocking spares that keep your bill of materials aligned with the original part number.

Key specifications

• Brand: Siemens
• Part Number: Q240HH
• Product Type: Circuit Breaker
• Amperage: 40 A
• Poles: 2
• Voltage: 240V
• Mounting: Plug-On for quick, secure installation
• Availability: Ready to ship from AmpState

Why this Siemens Q240HH stands out

The Q240HH isn’t just a 40‑amp, 2-pole breaker—it’s a purpose-built component that streamlines field installation while maintaining robust protection. The plug-on design minimizes wiring steps and reduces installation time, helping you finish service calls faster and with fewer opportunities for miswiring. With a 240V rating, it’s well-suited for branch circuits in both residential and light commercial settings, delivering reliable interruption protection where you need it most.

Ideal use cases

• Replacing a failed or aged 40A 2-pole circuit breaker in panelboards or distribution boards
• Using as a stock spare to ensure your BOM remains aligned with the original Siemens part number
• Planning routine maintenance or upgrades in electrical distribution networks
• Incorporating into refurbishment projects where consistent, compatible Siemens components are required

How it helps your project

With the Siemens Q240HH, you gain a reliable line of protection that integrates smoothly with existing panel infrastructure. The plug-on design reduces installation friction, while maintaining secure contact with the busbar to deliver stable performance under load. This makes it easier to uphold electrical safety standards and minimize downtime during upgrades or repairs.

Compatibility and support

Need help matching a part number or confirming compatibility with your panel or load center? Message AmpState and we’ll help you verify the fit for your specific application, ensuring your BOM stays consistent with the original specification.

Choose the Siemens Q240HH 40A 2P 240V circuit breaker for dependable protection, straightforward installation, and a part you can trust for everyday electrical work—available now from AmpState.