Phoenix Contact, TTC-6-2-HC-24DC-PT-I 30 V dc Maximum Voltage Rating 5kA Maximum Surge Current Surge Protection Device,, Mounting Type: DIN Rail, Length: 83.5mm, Depth: 6.2mm, Height: 105.8mm, Dimensions: 83.5 x 6.2 x 105.8mm, Minimum Operating Temperature: -40°C, Maximum Operating Temperature: +85°C, MPN: 2908439