This 2 PK Siemens B240 consists of 40 A, 120/240 V, 2‑pole molded case circuit breakers designed for reliable branch‑circuit protection. The Type BL bolt‑on design ensures secure and consistent installation in standard panelboards. With a 10 kA interrupting capacity, these breakers are suitable for typical commercial and light-industrial applications. They employ thermal–magnetic trip technology to protect circuits from overloads and short circuits. The compact dimensions make them compatible with most load centers, and this 2‑pack provides the convenience of multiple units for replacements or installations. Siemens’ robust build and UL certification deliver safety, durability, and dependable performance for any electrical system.