text: <s>[INST] 2097-R6 Shunt Resistor Summary: Clarification on 2097-R6 Heat Sink SelectionI have a 2097-R6 shunt resistor I need to install on a 2097-V34PR5-LM Kinetix 350. The installation guide says to use a 7.9 x 7.9 x 0.12 heat sink at 77 degrees F, but it doesn't say much more than that. I don't understand what the 77 degrees F is supposed to tell me. What material can/should be used? Can I use a sheet of aluminum? Should I mount it using thermal paste? Is there anything to consider regarding how the heat sink is mounted to the cabinet other than spacing? If this thing truly can get up to 392 degrees F, I want to make sure I do this right. http://literature.rockwellautomation.com/idc/groups/literature/documents/in/2097-in002_-en-p.pdf Thanks. [/INST] I think the 77 degF refers to the ambient temperature. I would mount the resistor to the enclosure and use the metal of the enclosure as the heat sink. If you tighten the screws to the specified torque then you shouldn't need any thermal paste. Monitor the temp of the resistor while the machine is running at max speed (when the resistor is working the hardest) and verify it stays below 392 degF. \\n </s>