Properties - Front-side measuring and test contacts, accessible without removing the switch. Surface-mounted installation. With plug-in terminals. Protection class IP 44. Dimensions approx. 83x73x56 mm. Accessories: AQUASTAR MEG3957-8000 label field inserts. AQUASTAR MEG3961-80xx double entry AQUASTAR MEG3961-80xx connecting piece AQUASTAR MEG3963-80xx pipe entry AQUASTAR MEG3964-8029. AQUASTAR MEG3965-80xx duct entry Slide with nozzle AQUASTAR MEG3962-8029. Scope of delivery With label field insert light. For every 5 buttons we supply 5 additional label field inserts 1 door, 3 bell and 1 neutral. Color polar white.