Power-to-Lock vs Power-to-Unlock: Choosing the Safer Safety Switch for Machine Guarding
//Shawn Mantel
In today’s high-risk manufacturing environments, machine safety is not just about guarding—it’s about intelligent, fail-safe control systems that protect human life. Among the most critical components of a machine safety system is the safety interlock switch. Specifically, Keyence’s safety switches offer advanced functionality that supports both power-to-lock and power-to-unlock configurations. But which is safer? When should you use one over the other?