Frontplatte 1 HE
Front panel 21DU for BGT 3HU
Frontplatte 21TE für BGT 3HE
Front panel 7DU for BGT 3HU
Frontplatte 7TE für BGT 3HE
Remote control / fault reporting unit
Abgesetzte Steuer/ Störmeldeeineheit
Relay card 100 V with 6 relays (2 x changeover contacts)
Battery 12 V-120 AH
Akku 12V-120AH