Siemens Q240H - 40 A, 240 V, 2-Pole Plug-In Circuit Breaker | AmpState

Meet the Siemens Q240H — a 40A, 240V, 2-pole plug-in molded case circuit breaker engineered to safeguard your electrical system with precision. Designed for dependable branch circuit overcurrent and short-circuit protection, it fits seamlessly into panelboards and load centers that rely on reliable, fast-acting protection.

• Fast plug-in connection for quick installation and straightforward replacement, reducing downtime during upgrades or maintenance.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance, adapting to load changes while minimizing nuisance trips.
• OEM-compatible design works with matching Siemens panelboards and other OEM load centers for a cohesive protection system.
• Versatile across settings suitable for residential, commercial, and light industrial applications where reliable 2-pole protection is required.

Technical details

• Manufacturer: Siemens
• Part Number: Q240H
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 40A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal uses and scenarios

The Q240H shines in both new installations and panelboard upgrades. Use it to protect individual branch circuits in residential service panels, small offices, or light industrial panels where a robust 40A, 240V two-pole solution is needed. It’s an excellent replacement option when upgrading aging breakers in Siemens-compatible panelboards, helping you restore reliable protection without compatibility concerns. The plug-in design makes service calls faster and reduces the risk of contact resistance or loose connections over time.

Why this breaker makes sense

Choosing the Siemens Q240H means leaning on a protection device that aligns with Siemens’ engineering standards and is proven across residential, commercial, and light industrial environments. The combination of a plug-in connection and a thermal-magnetic trip mechanism delivers predictable performance under varying loads, so you can count on consistent protection during peak demand or fault conditions. Its compatibility with OEM load centers ensures a cohesive, maintainable protection strategy for your electrical system.

For professionals and discerning property owners who value reliable, straightforward protection with minimal downtime, the Siemens Q240H 40A, 240V, 2-pole plug-in circuit breaker is a focused, no-nonsense choice that delivers on safety, compatibility, and serviceability.