Adapter for 5SY 3 - 4TE / 5SU1 3TE as an accessory for remote operator 5ST Adapter SENTRON 5ST3 as an additional component for residual current protective devices and circuit breakers.These additional components can be mounted universally. They are easy and convenient to install and connect. Thanks to the standard touch protection, safety during installation is reliably guaranteed.Optimal technology for your safety - only from Siemens.