Recessed luminaire; Sheet steel housing suitable for ceilings with visible T rails, concealed symmetrical rail constructions and cut-out ceilings; protection rating refers to visible luminaire surface; Housing colour traffic white RAL 9016; Direct light distribution using microprismatic pane made of acrylic glass with natural anodised aluminium frame; neutral white light colour (840) with very good colour consistency and high colour rendering Ra>80 for workstations, 65° < 3000 cd/m² with omnidirectional glare suppression according to current DIN-EN 12464-1 standard; The light source and driver are removable in accordance with the EU 2019/2020 ecodesign requirements and can be replaced in the factory. Electrical connection via 3-pole connection terminal with plug-in contacts.; With changeover converter for emergency lighting operation on request. An extractor is included for prismatic and frosted panes to remove the sealing frame. UBM universal mounting brackets for concealed symmetrical rail constructions or recessed ceilings and SCT locking clips for ceilings with visible T rails: please order separately. Dimensions (LxWxH/DxH): 1247mm x 309mm x 89mm Ceiling system: ceilings with visible T-rails [s-TS] (312.5x1250 mm), Concealed symmetrical rail construction [VS] (312.5x1250 mm), cut-out ceilings [AD] Installation depth: 150mm [AD]; 250mm [s-TS]; 150mm [s-TS] min; 150mm [VS] Ceiling cut-out (LxW/D): 1185mm x 285mm Placement: LED, Colour rendering/Light colour CRI ≥ 80 / 4000K Colour tolerance: 3SDCM Photobiological safety (Luminaire): RG0 LED service life: 50000h L80/B10 (Tq 25°C) Nominal luminous flux: 4291lm Luminaire luminous efficiency: 170lm/W Controller: Electronic driver (1 pcs.) System output: 25W Energy efficiency class/light source: C Mains voltage: 230V Mains frequency: 50Hz Impact resistance (IK rating): IK03 Ambient temperatur: ta 25°C UGR lat./long.: 18.1 / 19.1 Certification mark: IP54, Protection class I, VDU 65°<3000, F, HACCP DIN10500/Food/IFS/BRC, Indoor, CE Regiolux GmbH Type: protection-PREMP/312-1250 IP54 LED 4300 840 ET vw RAL 9016 Article number: 72512034150 Product deep link: https://www.regiolux.de/en/article/72512034150 General warranty conditions: www.regiolux.de/en/Service/Warranty