BLITZDUCTOR® XT base part BXT BAS4-pin, universal feed-through terminal for accommodating the arrester module without signal interruption, the arrester module is securely grounded via the DIN rail support foot using a snap-on fastening, since there are no components of the protective circuit in the base part, maintenance work is limited to the protective modules, connection cross-section single-wire 0.08 - 4 mm, connection cross-section fine-wire 0.08 - 2.5 mm, housing material polyamide PA 6.6