DUNGS GW...A5 - Compact Pressure Switches for gas, air, flue

[{"filename":"gw-a5_datasheet_en_225901.pdf","text":"Compact pressure switch\n for multiple actuators\n\n GW…A5\n GW…A5/1\n\n 5.02\n\n\n\n\n Technical description Suitable for gases of families 1,2,3 and\n The GW…A5 pressure switch is a com- other neutral gaseous media.\n pact pressure switch as per EN 1854\n for DUNGS multiple actuators. Approvals\n The pressure switches are suitable EC type testing certificate as per:\n for switching a circuit on, off or over • EC-Gas Appliances Regulation\n on changes in actual pressure relative • EC-Pressure Equipment Directive\n to the set switching point (reference\n value). Pressure switch class \"S\" as per EN 1854.\n\n\n\n\n Printed in Germany • Edition 2024.08 • Nr. 225 901\n The switching point can be set eas-\n ily and quickly using a setting wheel Approvals in other important gas-\n provided with a scale without using a consuming countries.\n pressure gauge.\n\n Application\n Pressure switches for DUNGS multi-\n ple actuators GasMultiBloc and DMV\n double solenoid valve which can be\n either mounted directly on housing or\n by using an adapter.\n1…6\n\fFunctional description GW…A5/1\n Switching function\nSingle-acting pressure switch in over- Slow response time during short-term\npressure range. pressure fluctuations by additional As pressure rises:\nThe pressure switches operate without damping nozzle. 1 NC opens, 2 NO closes\nany power supply. As pressure falls:\n Pressure Switch 1 NC closes, 2 NO opens\nSwitching response The GW…A5 is a single-acting pressure\nGW…A5 switch acting in pressure range. The 2 NO\nShort response time during pressure control unit responds to pressure. COM\nfluctuations. If the set reference value is exceeded 3\n or undershot, the circuit is switched 1 NC\n on, off or over. p\n\nSpecifications\n 2 NO\nMax. operating pressure GW 3 A5 - GW 150 A5 500 mbar (50 kPa)\n COM\n GW 500 A5 1000 mbar (100 kPa)\n 3 1 NC\n \t\t\nPressure connection O ring flange connection on underside of pressure switch\n p N\nMeasuring connection ø 9, length 10 mm, with screw plug\n 2 NO\n COM\nTemperature range Ambient temperature -15 °C to +70 °C\n Medium temperature -15 °C to +70 °C 3 1 NC\n Storage temperature -30 °C to +80 °C\n p N\nMaterials Housing: Aluminium die casting\n Switch: Polyamide\n Diaphragms: NBR\n Switching contact: Ag\n\nSwitching voltage AC eff. min. 24 V max. 250 V\n DC min. 24 V\t\t max. 48 V\n\nNominal current GW 10…500 A5 GW 3 A5\n AC eff. max. 10 A AC eff. max. 6 A\n\nSwitching current AC eff. max. 6 A at cos ϕ 1 AC eff. max. 4 A at cos ϕ 1\n AC eff. max. 3 A at cos ϕ 0,6 AC eff. max. 2 A at cos ϕ 0,6\n AC eff. min. 20 mA AC eff. min. 20 mA\n DC min. 20 mA DC min. 20 mA\n DC max. 1 A DC max. 1 A\n\nElectrical connection Plug connection for line sockets as per DIN EN 175 301-803, 3-pin, protection\n insulated without ground connection\n\nDegree of protection IP 54 as per IEC 529 (EN 60529)\n\nSetting tolerance ±15% switching point deviation referred to reference value, adjusted at pres-\n sure rises, vertical diaphragm position\n\nDeviation Permissible deviation of the set value ≤ ± 15 % in the service life test according\n to EN 1854\n\n\n\n\n 2…6\n\f Definition of ∆p switching difference\n The ∆p switching difference is the\n pressure difference between the upper Pressure at\n and lower switching pressure. control unit\n Setting tolerance\n upper switching\n\n Adjustment when\n\n\n\n\n ∆p switching difference\n pressure (ON)\n\n\n\n\n pressure drops\n falling\n\n\n lower switching\n rising pressure (OFF)\n\n\n\n\n Switching difference ∆p @ GW...A5/A6\n Depending on the corresponding set value (p↓)\n\n\n p @ GW ... A5/A6 p @ GW ... A5/A6\n 3,5 27,5\n 25\n 3\n 22,5\n 2,5 20\n 17,5\n 2\n\n [ mbar ] [ mbar]\n 15\n 1,5 12,5\n 10\n 1 7,5\n 0,5 5\n 2,5\n…