Power supply unit with frame Berker S.1 polar white, glossy 100 - 240 V~, 50 - 60 Hz Output voltage 24 V= Output current 250 mA Input current max. 180 mA Operating temperature -5 - +40 °C Approval according to EN 60335, EN 60950 For installation in standard installation boxes according to DIN 49073-1 IP40 (touch protection from 1mm, no water protection) Recommendation: Use a deep box. For the power supply of the emergency call system components with 24 V=. - Central piece plug-in fastening - suitable for multiple combinations - with screw terminals