Schlegel QUARTRON L-JUWEL Series Dimensions (mm) Panel Cutout: 48x24mm Front Dimension: 54x27mm Front bezel height: 2.5mm Travel distance: 6mm Catalog (PDF-10Pg) This is the flush mount variation of QUARTRON-L with particularly large push-cap area. Rectangular mounting hole with flush rectangular bezels. Suitable Contact Blocks A-SERIES Features: 6mm travel Lamp socket T5.5K (telephone slide base) Connection = Fast-on terminals 2.8x0.8mm C/P-SERIES Features: 3mm travel Lamp socket T5.5K (telephone slide base) Connection = PCB mount terminals