3RK3122-2AC00Brand: SiemensMPN: 3RK3122-2AC00SIRIUS, central unit 3RK3 ASIsafe Extended for modular safety system 3RK3 2/4 F-DI, 4 DI, 1 F-RO, 1 F-DO,24 V DC monitoring of AS-i devices control of 10 safe oRequest a quote