The B series Brad Direct-Link Ethernet switches feature new enclosure designs, broader operating temperature range and more compact 16- and 18-port designs. They are ideal for industrial-control applications with complex networks, high data-rates and time-sensitive devices. Built in accordance to UL508 and UL1604 safety standards, the Brad Direct-Link Industrial Ethernet Switches can withstand extreme operating conditions. Unmanaged, standard duty (SD) switches in tough Lexan polycarbonate provide a cost-effective network solution for a wide range of low-end DIN rail applications. For tougher, heavy-duty (HD) industrial DIN rail or panel mounting applications, the aluminum enclosure provides IP40 performance and reliable operation between -40 to +85°C.