Harmony XAP series empty enclosures. The modular Harmony pushbutton series with 22 mm or 30 mm installation dimensions combine simple installation, efficiency, modern design, flexibility with maximum robustness. https://elecena.pl/product/22523474/xapd2504-empty-housing-metal-gray-4-command-points-22-mm 2023-01-31 https://elecena.pl/product/22523474/xapd2504-empty-housing-metal-gray-4-command-points-22-mm 2025-04-18