The Siemens Energy part ED43B040 is a high-quality molded case circuit breaker designed to provide reliable protection for electrical circuits. This circuit breaker features a compact and durable design, making it ideal for use in various applications, including commercial buildings, industrial facilities, and power distribution systems.With a current rating of 40 amps, the ED43B040 circuit breaker is capable of efficiently handling electrical currents and automatically tripping in the event of an overload or short circuit. This ensures the safety and protection of your electrical equipment and minimizes the risk of electrical failures and fires.The ED43B040 circuit breaker is equipped with advanced features, such as thermal magnetic trip units, which provide accurate and precise tripping characteristics based on both thermal and magnetic effects. This enables effective protection against both overloads and short circuits, allowing for safe and reliable operation of your electrical systems.Additionally, the Siemens Energy ED43B040 circuit breaker is constructed with high-quality materials and components, ensuring longevity and optimal performance. It is designed to withstand harsh environments and extreme operating conditions, making it a dependable choice for demanding applications.Overall, the Siemens Energy ED43B040 molded case circuit breaker offers superior protection, reliability, and durability for a wide range of electrical systems. It is an essential component for maintaining the safety and efficiency of your electrical infrastructure.