Schneider Electric | Preventa XPSAK Series | Safety Relays Simple and effective safety monitoring has never been more crucial in today's highly automated world. Prevention is key to site safety, that's why Schneider Electric offers a Safety Relay in the form of the 'Preventa XPSAK' module that is second to none. Being able to monitor faults with devices along a circuit has the power to stop emergency situations from even occurring. Features and benefits: