Version with square wall plate, surface-mounted installation with steel wall plate, protective grille on the suction side, yellow chromated, with thermal overload protection, contact protection in accordance with DIN EN ISO 13857, the connections are potential-free on terminals and must be connected to an MV25 motor protection switch or to the control circuit of a contactor, fully assembled, reversible for ventilation, quiet running due to balanced motors and impellers, thermal overload protection for type DZQ 25/4 D on request
