Busbar, 3-phase for N-circuit breakers 5SQ for 12TE, 210mm long, 16mm2 CU busbar SENTRON 5ST2 as an additional component for residual current devices and circuit breakers. These additional components can be installed universally. They are easy and convenient to install and connect. Thanks to the standard touch protection, safety during installation is reliably guaranteed. Optimum technology for your safety - only from Siemens.