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The QP 1,5/ 4 plug is designed for reliable electrical connections, supporting a nominal voltage of 500 V and a maximum load current of 17.5 A. It accommodates a rated cross section of 1.5 mm², with a flexible conductor cross-section range from 0.25 mm² to 1.5 mm², corresponding to AWG sizes 24 to 16. The connection method utilizes a quick connection system, allowing for efficient and straightforward installation.

With dimensions of 20.8 mm in width and 40 mm in height, this plug is constructed from gray insulating material, compliant with RAL 7042 standards. It is compatible with IEC 61984 standards and exhibits a flame rating of V0 according to UL 94, ensuring safety in various applications. The plug is rated for overvoltage category III and has a degree of pollution rating of 3.

Operating within a temperature range of -60 °C to 105 °C, it is suitable for diverse environmental conditions. Additionally, it meets stringent fire protection standards for rail vehicles as outlined in DIN EN 45545-2, with specific classifications for various scenarios. The plug's construction includes PVC/PE wire insulation, contributing to its durability and performance.