This is a differential pressure switch with model number RT260A. It has a maximum test pressure of 47 bar (681 psig), and a maximum working pressure of 42 bar (609 psig). The IP protection level of the case is IP66, which provides excellent protection against dust and water ingress. Regarding the temperature range, it can operate in an environment with a minimum temperature of -40 °C (-40 °F) and a maximum temperature of 70 °C (158 °F). In terms of electrical specifications, it complies with EN 60947 - 4/-5 standards. The electrical connection is of cable thread type, with a size of 2xPg 13.5, and the connection form is internal thread, following the DIN 40430 standard. 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 differential pressure adjustment range is from 1.5 bar (22 psi) to 11 bar (159 psi). For the EN 60947 wiring properties, it supports flexible wires with ferrules: 0.2 - 1.5 mm², flexible wires without ferrules: 0.2 - 2.5 mm², and solid / stranded wires: 0.2 - 2.5 mm². Its EN 60947 electrical properties include insulation of 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 M, with a size of 12 x 1.5, and follows the ISO 8434 - 1 standard. The pressure connection has male - female threads (external threads). The contact system is repairable, and the contact hysteresis is 0.5 bar.