Circuit breaker 240V 14kA, single-pole, type B, 63A, T=70mm according to UL 489, same polarity. The circuit breaker is the automatic fuse for short circuit protection. Siemens circuit breakers are an essential part of the SENTRON protection components for electrical installations and provide effective protection for people and equipment through safe disconnection in overload and short circuit situations. Convenient mounting and connection technology, uniform additional components, and a consistent design are the hallmarks of this device family. Whether for infrastructure or industrial requirements, Siemens offers circuit breakers for all applications and every area of use. Siemens circuit breakers are particularly characterized by: 1. Effective protection for people, investments, and equipment against overload and short circuits. 2. Uniform accessories in a wide variety, easy to install and interchangeable at any time. 3. Reliable safety during installation thanks to standard included grip and touch protection. 4. Clearly visible switching position indicator. 5. Datamatrix code on the front of the device provides quick and easy access to all information regarding the circuit breaker. 6. Compliance with standards with worldwide approvals.