Be careful here.
Belden makes 600V rated Cat-5e Ethernet bulk cable, but it is NOT rated for cable tray use, it is AWM (Appliance Wiring Material) and UL Recognized only, which means it can only be used in ASSEMBLIES that are going to be UL listed under another process. In order to get a TC (Tray Cable) rating, the insulation must have passed a vertical flame test per UL standards. The bulk Belden cable has NOT passed that test. They have bulk Cat-5e Ethernet cable that is TC rated and UL listed, but that is not rated for 600V, so you cannot run it in the SAME tray as other 600V cables.
Belden also sells Cat-5e 600V TC rated Ethernet CORD SETS in fixed lengths with the fittings already installed, but not loose bulk cable for running in trays. You can buy the cord sets in lengths up to 100M, but you cannot cut the connectors off and attach your own without violating their UL 1277 listing.
So make sure you know which one you are using before you make a mistake that has to be un-done.
The only Cat-5e bulk cable I know of on the market that is both UL listed as PLTC and 600V is Allen Bradley.