7SR5421-1AA12-0AA0Brand: SiemensMPN: 7SR5421-1AA12-0AA0Transformer protection (2 wdg.) 8 curr. trans., 4 volt. trans. 12 BI, 8 BO Standard interface: 1 x USB (front), RS 485 (rear) + 2 x RJ45 interfaces S8 enclosureRequest a quote