DUNGS GW...A6 - Compact Pressure Switches for gas, air, flue, exhaust gases and hydrogen

[{"filename":"gw-a6_datasheet_en_229544.pdf","text":"Compact pressure\n switches\n for gas and air\n GW…A6\n GW…A6/1\n 5.01\n\n\n\n\n Technical description Approvals\n The pressure switch GW…A6 is an EU type testing certificate as per:\n adjustable compact pressure switch • EU-Gas Appliances Regulation\n according to EN 1854 for combustion • EU-Pressure Equipment Directive\n plants.\n The pressure switches are suitable for Pressure switch class „S“ as per EN 1854.\n switch-on, switch-off and switch-over of\n an electric circuit at a variable pressure Approvals in other important gas-\n actual value, relative to the set desired consuming countries.\n\n\n\n\n Printed in Germany • Edition 2024.08 • Nr. 229 544\n value.The setpoint (switching point) is\n set on an adjusting wheel with scale.\n A test nipple is integrated in the metal\n housing as standard.\n\n Application\n Pressure monitoring in combustion,\n ventilation and air-conditioning tech-\n nologies.\n Suitable for gases of families 1,2,3 and\n other neutral gaseous media.\n1…6\n\fFunctional description GW…A6 pressure switch\n Switching function\nSingle-acting pressure switch in over- The control unit responds to pressure. If\npressure range. the setpoint is exceeded or undershot,\n If pressure increases:\nThe pressure switches operate without the circuit is switched on, off or over.\n 1 NC opens, 2 NO closes.\nany power supply.\n If pressure drops:\n GW… / …A6 double pressure\n 1 NC closes, 2 NO opens.\nSwitching response switch\nGW…A6 Combination of two flanged GW...\nShort response time during pressure A6 single pressure switches. The two\nfluctuations. setpoints are set separately and inde-\n pendently. A combination of different 2 NO\nGW…A6/1 setpoint ranges is therefore possible. COM\nSlow response time during short-term The two control units are fed from the\npressure fluctuations by additional same medium at the medium’s pres- 3\ndamping nozzle. sure. 1 NC\n p\n\n\n 2 NO\n COM\n Definition of ∆p switching differ-\n ence 3 1 NC\n The ∆p switching difference is the Pressure at\n control unit\n pressure difference between the up-\n p\n Setting tolerance\n per and lower switching pressure. upper switching N\n Adjustment when\n\n\n\n\n ∆p switching difference\n pressure (ON)\n\n 2 NO\n pressure drops\n COM falling\n\n 3 1 NC\n lower switching\n rising pressure (OFF)\n\n p 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\n 3,5 27,5\n 25\n 3 22,5\n 20\n 2,5\n 17,5\n 2\n [ mbar]\n 15\n\n [ mbar ]\n 12,5\n 1,5\n 10\n 1 7,5\n 5\n 0,5 2,5\n 0\n 0\n\n\n p↓ [mbar]\n p ↓ [mbar]\n\n\n\n\n 2…6\n\f Specifications\n\n Max. operating pressure GW 3 A6 - GW 150 A6 500 mbar (50 kPa)\n GW 500 A6\t\t\t 1000 mbar (100 kPa)\n\n Pressure connection Standard (V0): centrally on housing bottom, G 1/4 inner thread\n as per ISO 228\n Special design (V3): additionally G 1/4 inner thread (side right)\n\n Measuring connection Test nipple integrated in metal housing ø9\n\n Temperature range Ambient temperature -15 °C to +70 °C\n Medium temperatue -15 °C to +70 °C\n Storage temperature -30 °C to +80 °C\n\n Materials Housing: Aluminium die cast\n Switch part: Polyamide\n Diaphragms: NBR\n Switching contact: Ag\n\n Switching voltage AC eff. min. 24 V max. 250 V\n DC min. 24 V max. 48 V\n\n Nominal current GW 10…500 A6 GW 3 A6\n AC eff. max.10 A\t\t AC eff. max. 6 A\n\n Switching 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.\t\t min. 20 mA AC eff.\t\t min. 20 mA\n DC min. 20 mA DC min. 20 mA\n DC max. 1 A DC max. 1 A\n\n Electrical connection Terminal connection for line sockets as per DIN EN 175 301-803, 3-pin,\n protection-insulated without ground connection\n\n Degree of protection IP 54 as per IEC 529 (EN 60529)\n\n Setting tolerance ± 15% switch point deviation referred to setpoint, adjusted for dropping pres-\n sure, vertical diaphragm position\n\n Deviation Permissible deviation of the set value ≤ ± 15 % in the service life test according\n to EN 1854\n\n\n Mounting options GW…A6\n Safety solenoid valve\n SV-……