The Siemens 1 Pole Type BL 20A Circuit Breaker B120 is a manual reset circuit breaker with a tripping characteristic of Type B. It is suitable for both wall interior and exterior use, offering features such as thermal overload protection, plug-on neutral, and a trip indicator. This circuit breaker, with a maximum amperage of 20A, is designed for any room and provides protection against overload, safety circuit, short circuit, overcurrent, low voltage, and overcharge situations. With an operating temperature of -40°C to 130°C, it is reliable and efficient for electrical connections in various industrial and commercial settings.