The Line Strong 3D is a Heavy‑Duty Safety Rope Pull switch designed to protect long conveyor lengths. The die‑cast housings are robust to survive indoor or outdoor use including washdown (IP67 rating). Lengths over 2 Km can be achieved with less than 20 switches. A bi‑color LED ensures switch status can be seen easily from a distance. They have 4NC 2NO contacts to ensure flexibility with all modern control applications. Shorter rope spans up to 200m can be achieved by using just one switch, therefore making a cost‑effective solution and also reducing electrical wiring runs.