This is a high - quality pressure switch, model RT32B. It has a wide range of excellent features. Pressure - related Parameters The adjustment range of pressure (Pe) is from 5 bar (72.5 psig) to 25 bar (362.6 psig), which allows for flexible settings according to different application requirements. The hysteresis is 0.4 bar (5.8 psi), ensuring stable and reliable operation. The maximum test pressure (Pe) is 47 bar (682 psig), and the highest working pressure is 42 bar (610 psig), indicating its high - pressure - resistance ability. The pressure connection type is G, with a connection size of 1/2 and the standard is ISO 228 - 1. The pressure connection has external threads, and the pressure sensing element is a bellows. It can withstand a burst pressure of 136 bar, providing a high - level safety margin. Electrical Specifications The electrical connection is in the form of cable thread connection, with a size of 2xPg 13.5 and internal threads. The electrical connection standard follows DIN 40430. The electrical specifications comply with EN 60947 - 4/-5. For 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). The electrical insulation is rated for 400V, the pollution degree is 3, the rated impulse voltage is 4 kV, and it has a short - circuit protection with a 10A fuse. The contact function is SPDT, and 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. Environmental - related Parameters The enclosure protection level is IP54, which provides a certain degree of protection against dust and water splashing. The fluid group is 1. The environmental temperature range is from - 40 °C (- 40 °F) to 70 °C (158 °F), making it suitable for use in a variety of environments. Other Features The product is part of the "Switches and thermostats" series, and its contact system is repairable. It is included in catalog IV. This pressure switch is a reliable and versatile product that can meet the needs of various industrial and commercial applications.