Siemens Main circuit breaker 20 400V

Main circuit breaker (SHU), 4-pole, E 20, 400V. The miniature circuit breaker is the automatic circuit breaker for short-circuit protection. The miniature circuit breakers from Siemens, as an important component of the SENTRON protection components for electrical installations, offer effective protection for persons and systems by means of safe disconnection in the event of overloads and short circuits. Convenient mounting and connection technology, uniform additional components, and a consistent design are the hallmarks of the device family. Whether for infrastructure or industrial requirements, Siemens offers miniature circuit breakers for all applications and every field of use. The Siemens miniature circuit breakers are characterized above all by: 1. Effective personal, investment, and system protection against overloads and short circuits. 2. Reliable safety during installation, thanks to the standard wrap-around protection and contact hazard protection. 3. Clearly visible switch position indication. 4. Optimum technology for your safety.