Bircher DW40 switch Pressure opens contact

Description The Bircher DW40 is a highly sensitive pneumatic pressure wave switch designed for use in the bottom Bircher DW40 is a famous name in the world of doors and is known for its robustness and is equipped with screw connector clamps. When a pressure wave reaches the switch, the diaphragm bends, activating the NO contact, which remains switched as long as the input pressure exceeds the 2 mbar response pressure. The switch allows individual adjustment via the contact element (K) and features fast switching behavior, a maximum pressure capacity of 15 mbar, and a pressure compensation rate of 110 ml/min at 2 mbar. Known for its robustness and reliability, the DW40 ensures quick and safe operation in demanding environments.