This is a differential pressure switch with model number RT260A. It is suitable for a wide range of applications. The maximum test pressure is 47 bar (681 psig), and the maximum operating pressure is 42 bar (609 psig). The IP protection rating of the enclosure is IP66, which provides excellent protection against dust and water ingress. The switch can operate in an ambient temperature range from -40 °C (-40 °F) to 70 °C (158 °F). In terms of electrical specifications, it complies with EN 60947 - 4/-5. The electrical connection is of cable thread type, with a size of 2xPg 13.5 and a male/female connection form of internal thread, complying with DIN 40430 standard. For the contact function, it is SPDT. The contact capacity includes AC15 = 3 A, 400 V; AC1 = 10 A, 400 V; AC3 = 4 A, 400 V; DC13 = 12 W, 220 V; LR = 28 A, 400 V. The adjustment range of pressure is from -1 bar (-15 psig) to 36 bar (522 psig). The differential pressure setting range is from 0.5 bar (7 psi) to 6 bar (87 psi), and the contact hysteresis is 0.5 bar. Regarding the pressure connection, the pressure connection type is M, with a size of 12 x 1.5 and a standard of ISO 8434 - 1. The pressure connection is external thread. The EN 60947 wiring properties are as follows: for flexible with ferrules, it is 0.2 - 1.5 mm²; for flexible without ferrules, it is 0.2 - 2.5 mm²; for solid / stranded, it is 0.2 - 2.5 mm². The EN 60947 electrical properties include insulation of 400V, pollution degree of 3, rated impulse voltage of 4 kV, and short - circuit protection with a fuse of 10A. This switch is repairable for the contact system. It has passed multiple approvals such as CCC, CE, CMIM, EAC, etc., ensuring its high quality and reliability for customers.