Safety integrity and approvals
Rated Category 4, PLe, SIL3 — this covers the highest safety integrity levels for machine safety controllers. Approved by CE, C-Tick, cULus, KC, TUV, UL, so it meets most global regulatory requirements out of the box.
Physical fit and mounting
DIN Rail mount, 0.165 lb (74.84 g). The NX-SL3500 shares the same NX series footprint and safety category as the NX-SL3300 — identical weight and approvals. If your panel was wired for an NX-SL3300, the NX-SL3500 drops in without rewiring, provided the I/O configuration matches.