The LC1G1504BEEA: Mechanical durability is rated at 8 million cycles — that's well beyond the B10d 400,000-cycle figure for the safety channel at nominal load. If you're running high-speed cycling at 600 ops/h AC-3, the mechanical life should outlast the electrical wear for most applications. Terminal acceptance: power circuit uses bolted connection for busbars up to 25×6 mm or lugs up to 185 mm². Mounting is plate only, with a 35 mm connection pitch, so expect to drill a backplate rather than clip onto DIN rail.
Tightening torque for power connections is 18 N·m — that's a torque wrench spec you want to put on your install checklist.