This is a high - quality pressure switch designed for various industrial applications. Pressure - related Parameters The maximum test pressure in bar (Pe) is 32 bar, and in pounds per square inch gauge (psig), it is 464 psig. The highest working pressure is 20 bar (290 psig). The adjustment range in bar (Pe) is from 7 bar to 20 bar, which is equivalent to 101.5 psig to 290.1 psig. The pressure connection size is 1/2, with a connection type of G and the connection standard follows ISO 228 - 1. The pressure connection is in the form of internal threads, and the pressure sensing element is a diaphragm. Differential Pressure The differential pressure at the maximum range setting has a maximum value of 7 bar and a minimum value of 3.5 bar. At the minimum range setting, the maximum is 3.5 bar and the minimum is 2 bar. Environmental Parameters The enclosure protection class IP is IP55, which provides good protection against dust and water jets. The ambient temperature range is from - 20 °C (- 4 °F) to 70 °C (158 °F), making it suitable for a wide range of environmental conditions. Electrical Parameters The electrical specifications comply with the EN 60947 - 4/-5 standard. The electrical connection is in the form of cable thread connection, with a connection size of Pg 16 and in the form of internal threads. The connection standard is DIN 40430. The contact function is TPST, and the contact capacity includes AC3 = 12 A at 220 - 415 V, AC3 = 9 A at 600 V, DC13 = 2 A at 220 V, and DC14 = 2 A at 220 V. Other Features The product is considered "numbered" for repairability. This pressure switch is a reliable and well - designed product that can meet the needs of different customers in various industrial scenarios.