Siemens Q24040CT2 Two 40-Amp Double Pole Circuit Breaker

Description

Product Overview

The Siemens Q24040CT2 is a 40‑amp, double pole magnetic circuit breaker designed for residential and light commercial electrical panels. Constructed with high‑conductivity copper contacts, this breaker offers superior current‑carrying capacity and reduced resistance, which translates into longer service life and reliable operation under load. Its plug‑in mounting style fits a Quadplex 1/2‑inch frame, allowing electricians to install the device quickly without the need for additional wiring or complex wiring configurations. The breaker is UL listed, confirming compliance with rigorous safety standards and providing peace of mind for homeowners and professionals alike. With a compact 3 × 2 × 3‑inch footprint, the Q24040CT2 maximizes panel space, making it an ideal choice for panels where space is at a premium. The product’s specifications include a 240‑volt rating, a standard circuit breaker type, and a robust copper construction that resists corrosion and wear over time. Its design incorporates a clear break arc, reducing the risk of arcing during fault conditions and enhancing overall system safety. The breaker’s rating of 40 amps ensures it can handle typical household loads such as lighting circuits, small appliances, and HVAC components without nuisance tripping.

Usage

Designed for a wide range of applications, the Siemens Q24040CT2 is suitable for protecting circuits that supply kitchen appliances, bathroom lighting, garage outlets, and small workshop equipment. Installers can use this breaker in new construction projects or retrofit it into existing panels to upgrade protection levels. Its plug‑in design simplifies the replacement process, allowing for rapid swaps when a breaker needs to be upgraded or replaced, minimizing downtime for homeowners. The breaker performs well in environments with fluctuating loads, such as homes with electric vehicle chargers or renewable energy systems, where reliable fault interruption is critical. Because the unit is UL listed, it can be confidently used in jurisdictions that require UL certification for electrical components. The Q24040CT2’s copper contacts provide a low‑resistance path, which is especially beneficial in high‑temperature installations where thermal performance can affect breaker reliability. Electricians appreciate the clear labeling on the breaker, which includes the model number, voltage rating, and amperage, facilitating quick identification during service calls.

Why Choose Us

Choosing the Siemens Q24040CT2 means selecting a product backed by a brand with a long history of engineering excellence in electrical distribution. Siemens rigorously tests each breaker to ensure it meets or exceeds industry standards for performance, durability, and safety. The copper contact material used in this breaker offers superior conductivity compared to aluminum alternatives, reducing heat buildup and extending the life of the device. Siemens also provides comprehensive technical support and documentation, helping installers troubleshoot and verify proper installation. The company’s warranty policy emphasizes the importance of using new, unused breakers, reinforcing the commitment to safety and reliability. By purchasing this breaker, customers benefit from Siemens’ extensive network of authorized distributors, ensuring authentic parts and consistent quality. The product’s UL listing further guarantees that it has undergone independent testing for fire safety, shock protection, and mechanical endurance. Additionally, the compact design reduces panel crowding, allowing for future expansion without compromising existing circuit protection.

Key Features

• 40‑amp rating provides robust protection for a variety of household circuits.
• Double pole design safeguards both hot conductors in 240‑volt applications.
• Copper contacts deliver low resistance and long‑term durability.
• Plug‑in mounting saves panel space and speeds up installation.
• UL listed ensures compliance with strict safety standards.
• Compact Quadplex 1/2‑inch frame fits crowded electrical panels.
• Clear labeling simplifies identification and maintenance.
• Siemens technical support and warranty provide confidence after purchase.

FAQ

What size panel can accommodate the Q24040CT2?

The breaker fits a standard Quadplex 1/2‑inch frame, making it compatible with most residential and light‑commercial panels that accept plug‑in style breakers.

Can I replace an older breaker with this model?

Yes. The plug‑in design allows for straightforward replacement of existing breakers, provided the panel supports the same frame size and voltage rating.

Is the copper contact material important?

Copper contacts offer lower resistance and better heat dissipation than aluminum, which improves reliability and extends the breaker’s service life.

Does this breaker require any special tools for installation?

No special tools are needed. Standard screwdriver or breaker puller tools are sufficient for installing or removing the Q24040CT2.

What warranty does Siemens provide for this breaker?

Siemens recommends using only new, unused breakers to maintain panel warranty coverage. The breaker itself is covered against manufacturing defects for the period specified in the product documentation.