SICK Rope Pull Switch Product Details: Attribute Value Normal State Configuration 2NC Cable Length = 75m IP Rating IP65 Series i150 Length 203mm Width 69mm Depth 85mm Housing Material Metal Minimum Operating Temperature -25°C Dimensions 69 x 203 x 85mm Maximum Operating Temperature +80°C Maximum Current 2A Standards Met CE Maximum DC Voltage 24V dc SICK Rope Pull Switch 75m Reliable Emergency Stop Over Long Distances The SICK i150RP Rope Pull Switch stops dangerous machine movements quickly across distances up to 75 meters. Operators can pull the rope from any point along its length. As a result, the system shuts down immediately during an emergency. Install the rope along conveyors or hazardous machine sections that lack physical guards. Because the rope runs the full length of the risk area, workers can react faster and improve overall safety. Safe Operating Mechanism In normal operation, the rope remains under constant tension. The positive-opening normally closed (NC) contacts stay closed to maintain the safety circuit. However, when someone pulls the rope—or if it breaks—the switch opens the safety contacts instantly and triggers the emergency stop. The mechanism latches immediately after activation. Therefore, the system stays in a safe state until the operator resets it using the rotary unlocking lever. Durable and Practical Design The i150RP features a strong metal housing with an integrated emergency stop pushbutton and rope tension indicator. Moreover, it offers slow-action switching elements with four contacts for reliable performance. Choose between an M20 x 1.5 cable gland or a Flexi Loop-compatible M12 connector, depending on the variant. With Flexi Loop, you can connect devices safely in series while reducing wiring effort. SICK i150 Rope Pull Switch Key Benefits Activate emergency stop from anywhere along the rope Cover up to 75m with one switch Reduce installation costs Adjust rope tension easily Use additional contacts for quick diagnostics Applications Use the i150RP on machines without physical guards. For example, it protects conveyor belts, assembly lines, and feed systems. Consequently, it provides effective emergency stop coverage across large industrial areas.