B¹, the new in-situ concrete range for electrical installation. In addition to the tried and tested system features such as the flat front panel, stable mounting boss and the support holder with a spring-loaded box base, the new B¹ range features innovative pipe entries, stable holders for the new B¹ Prefix® system wings as well as subsequent break-out separators for connecting devices in combinations. Suitable for all types of formwork https://elecena.pl/product/21157689/1265-01-b-device-connection-box-2-piece-installation-opening-6 2022-07-04 https://elecena.pl/product/21157689/1265-01-b-device-connection-box-2-piece-installation-opening-6 2024-03-16 https://elecena.pl/product/21157689/1265-01-b-device-connection-box-2-piece-installation-opening-6 2024-04-25 https://elecena.pl/product/21157689/1265-01-b-device-connection-box-2-piece-installation-opening-6 2025-04-18 https://elecena.pl/product/21157689/1265-01-b-device-connection-box-2-piece-installation-opening-6 2026-06-28