Isolating transformers, according to the VDE and EN instructions.
Type TTGN 2 is a plug-in unit
which is plugged directly into the 230 V main socket.
Types TTGN 20 mounted in a steel-case with a handgrip.
Types -230/110- are for matching and operating of 110V-unit
at the 230 V line voltage.The input has a mounted Euro-plug.
The output has a US-socket (Ground not connected)
Types -120/230- are for matching and operating of 230 V-unit at the 110...120 V line voltage.
The input has a 2m mains lead with a mounted US-plug.
The output has a Schuko-socket (Ground not connected).
For protection against overload and short-circuit
a thermal-switch and a changable fuse are incorporated.