In view of the above,IndustrialSwitch selection criteria include factors such as reliability, network management capability, data transmission speed and bandwidth, protection capability and cost. the reliability of the Industrial Switch is the. Guide to selecting managed industrial Ethernet switches covering port configuration, VLAN setup, redundancy protocols, and traffic prioritization for OT networks. Among all environmental challenges, extreme temperature tolerance stands out as the most critical differentiator. Operating Temperature: The Defining Difference While. An industrial switch is a network device designed to operate in harsh industrial environments where standard office-grade Ethernet switches fail to ensure stable transmission. The key design element is a reinforced enclosure with protection rating from IP30 up to IP67, resistant to dust, humidity. This article systematically analyzes the selection criteria and deployment key points for industrial-grade PoE switches, providing a comprehensive reference for industrial automation scenarios, from technical specifications to practical implementation.