The Siemens 3VJ1 Molded Case Circuit Breaker is designed to provide reliable line protection for residential, commercial, and industrial electrical systems. With a 20A to 125A rated current, and robust 25kA breaking capacity, this single-pole MCCB ensures superior performance in demanding environments. Its fixed thermal/magnetic (thermo-magnetic) protection mechanism prevents circuit overloads and short circuits, while the screw terminal connection ensures secure and easy installation. The compact, fixed-base design and lever actuation make it ideal for applications requiring efficient and durable circuit protection.