R1.320.4120.0 is a safety switch (SMS 4120) designed with a separate actuator and 10 N actuation force, featuring 2 normally closed (NC) contacts for reliable control in industrial environments. The device is rated for 250 V insulation voltage with a 2.5 kV impulse voltage rating, and supports utility categories of 3 A (AC-15 at 250V AC) and 10 A (DC-13 at 24V DC). The housing is constructed from thermoplastic GV material (UL94-V0 rated) with IP65 degree of protection, operating reliably across a temperature range of -30°C to +80°C. With a mechanical life of 106 switching cycles and screw connection terminals featuring 3 × M20×1.5 cable entries, this safety switch is ideal for machinery protection, emergency stop systems, and safety-critical applications requiring certified performance and durability.