This is a high - performance pressure switch, model MBC 5100 with the product code 061B510266. It has a wide adjustment range, which can be adjusted from 40 bar to 400 bar (equivalent to 4 MPa - 40 MPa), allowing for flexible adaptation to different pressure requirements in various applications. The pressure connection type is G with a size of 1/4, following the ISO 228 - 1 standard, and the connection is in the form of internal threads. This design ensures a reliable and leak - proof connection. The maximum working pressure of this pressure switch is 600 bar (about 8700 psig), and the maximum test pressure Pe is also 600 bar (8702 psig), with a bursting pressure of 1200 bar, indicating its high - strength and safety - oriented design to withstand high - pressure environments. The enclosure protection class is IP65, which provides excellent protection against dust and water jets, making it suitable for use in harsh industrial environments. In terms of electrical specifications, it complies with EN 60947 - 5 standard. The electrical connection is a DIN plug with a size of Pg 11 and an internal - thread form, complying with EN 175301 - 803 - A standard. The contact function is SPDT, and it has contact ratings of AC15 = 0.5 A, 250 V and DC13 = 12 W, 125 V. This pressure switch has passed multiple international approvals including ABS, BV, CCC, CCS, CE, CMIM, DNV, EAC, GL, KRS, LLC CDC EURO - TYSK, LR, NKK, RINA, RMRS, ensuring its quality and compliance with international standards. It is also compliant with China RoHS, while EU RoHS and UK RoHS are out of scope. It does not contain batteries. The product comes in a multi - package with 32 pieces per pack.