With its slim design, the installation housing IDG-A is suitable for applications in building automation. This enclosure has been designed according to DIN 43 880, providing the dimensions and specifications required for installation component standards. Conforming to VBG 4 and IEC529/DIN VDE 0470-1, the IDG-A prevents accidental shock and injury while meeting the requirements of the automation industries. This new housing enables users to incorporate a top horizontal pcb or three horizontal pcbs. The top horizontal pcb is ideal for holding signalling devices/ indicators and switches. Fully populated, the terminal blocks have a maximum of 12 screw clamp terminals. For applications not requiring all 12 I/O positions or requirements for additional internal space, selective loading may be done, with empty positions being filled with blind plugs.