Pressure switch Dungs NB50A4 210534

Dungs 210534 NB50A4 differential pressure switches are suitable for switching a circuit on, off or over on changes in actual pressure value relative to the set reference value. The switching point is set using an adjustment wheel with a scale. The metal housing includes a standard integrated measuring nozzle. Dungs NB50A4 210534 pressure switch monitors pressure in heating, ventilation, and air conditioning systems. It is suitable for gases of families 1, 2, 3, and neutral gases. Dungs NB50A4 210534 pressure switch functions as a one-way pressure limiter within a specified range and operates without an external power source. Dungs 210534 NB50A4 pressure switch technical data: Setting range: 2,5-50 mbar Max. operating pressure: 500 mbar (50 kPa) Ambient temperature: -15 °C to +60 °C Medium temperature: -15 °C to +60 °C Storage temperature: -30 °C to +80 °C Housing: aluminium die casting Switch: Polycarbonate Membrane: NBR Degree of protection: IP 54 as per IEC 529 (EN 60529) Setting tolerance: ± 15% switching point deviation based on the setpoint and with unit installed in a vertical position Dungs 210534 NB50A4 differential pressure switch approvals: EC type test approval as per EC Gas Appliance Directive: CE-0085 AO 3220. EC type test approval as per EC Pres- sure Equipment Directive: CE0036. Approvals in other important gas-consuming countries. Special designs for the North American market with UL, FM and CSA registrations.