Dungs-Druckwächter GW500A4HP 254280

Dungs GW500A4HP 254280 differential pressure switch is an adjustable pressure switch for burners. Dungs GW500A4HP 254280 pressure switch suitable for closing, opening or switching over a current circuit when the actual pressure value deviates from the specified pressure setpoint. The specified pressure setpoint (operating point) is set at a setting wheel using a scale. Pressure monitoring in burner control systems with a max. permissible operating pressure of greater than 600 mbar. Suitable for gases of gas families 1,2,3 and other neutral gaseous media, as well as air, flue gases and combustion products. Dungs GW500A4HP 254280 pressure switch technical data: Max. operating pressure: 2 bar (200kPa) Pressure connection: P+: centrally on underside of housing, G 1/4 internal thread to ISO 228: Gas or air Ambient temperature: -15 °C to +70 °C Medium temperature: -15 °C to +70 °C Storage temperature: -30 °C to +80 °C Housing lower section: aluminium die casting Hood: polycarbonate Switch: polycarbonate Metal bellows: 1.4541 (stainless steel) Switching contact: standard: fine silver (Ag) Adjustment: With rising pressure and installed in a vertical position. Optional rising or dropping pressure adjustment on-site possible. Note switch point change if installation position changes. Setting tolerance: ±15% switch point deviation based on the setpoint and with unit installed in a vertical position