Available. The Keyence GS-51PC is a safety interlock switch designed to enhance industrial automation systems by ensuring secure operation of machinery. Operating at a voltage of 24V DC, it features a PNP output type and utilizes a power-to-release locking mechanism, providing reliable performance in demanding environments. The switch boasts a response time of 220 ms for both locking and unlocking actions, with a minimum locking force of 2,000 N, ensuring robust security. Its mechanical lifespan exceeds 1 million cycles, even with door operation speeds up to 1 m/s, and it can accommodate door radii as small as 250 mm. The GS-51PC is compliant with international safety standards, including EN 61508, IEC 61508 (SIL2/SIL3), EN 62061, IEC 62061 (SIL CL2/SIL CL3), and UL 61010-1, making it suitable for a wide range of industrial applications.