This is a high - performance pressure switch. It has a maximum test pressure of 47 bar (682 psig), ensuring its durability during testing. The maximum working pressure is 42 bar (610 psig), which indicates the upper limit of pressure it can handle during normal operation. The enclosure protection level is IP54, providing a certain degree of protection against dust and water splashing. The fluid group is 1, suitable for specific fluid - related applications. Its burst pressure is 63 bar, which is an important safety parameter. Regarding the ambient temperature range, it can operate in a wide temperature environment, with a minimum of -40 °C (-40 °F) and a maximum of 70 °C (158 °F). In terms of electrical specifications, it complies with EN 60947 - 4/-5 standards. The electrical connection is in the form of cable thread connection, with a size of 2xPg 13.5, and the connection type is internal thread, following the DIN 40430 standard. The catalog number is IV. The contact function is SPDT. The contact capacity is 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 5 bar (72.5 psig) to 25 bar (362.6 psig), which can meet different pressure - setting requirements. For EN 60947 wiring properties, it supports flexible wiring with ferrules for wire diameters of 0.2 - 1.5 mm², flexible wiring without ferrules for 0.2 - 2.5 mm², and solid or stranded wires of 0.2 - 2.5 mm². In terms of EN 60947 electrical properties, it has heat insulation up to 400V, a pollution degree of 3, a rated impulse voltage of 4 kV, and short - circuit protection with a 10A fuse. The pressure connection is of type G, with a size of 1/2, following the ISO 228 - 1 standard. The pressure connection is male (external thread), and the pressure sensing element is a bellows. The contact system is repairable. The hysteresis is 1 bar (14.5 psi), which is a key parameter affecting the accuracy of pressure control.