Safety transformer, 16VA primary AC 230V, 50Hz, secondary 8V AC with PTC fuse, 2TE++ Safety transformers provide a safety extra-low voltage to supply control circuits, switching relays or Insta contactors. These safety transformers up to 63 VA provide a safety extra-low voltage to supply control circuits, switching relays or Insta contactors in continuous operation as an AC power supply for AC 8 V, 12 V, 16 V, 24 V and 32 V. Siemens safety transformers are protected against short circuits or moderate overloads by a PTC resistor. Whether for infrastructure or industrial requirements, Siemens offers safety transformers for all applications and every area of use. Siemens power supplies are characterized above all by: 1. Convenient and simple assembly and connection technology. 2. Reliable safety during installation thanks to standard touch protection. 3. Integrated short circuit and overload protection. 4. Optimum technology for secure power supply for your safety - only from Siemens.