Door opener relay for opening the door only after a voice connection, up to 32 indoor stations can be programmed, detector input for manual activation of the door opener using a button, potential-free relay contact (changeover contact: 230 V, 50/60 Hz / 3 A), performance features that can be changed without tools: programming and deleting the indoor stations, LED for status display, parameters can be set with Configo, only after manual activation, 3-wire technology required, series installation housing 1 TE for top hat rail DIN EN 50022, dimensions: H 85 mm x W 65 mm x D 18 mm