Siemens 6EP4136-3AC00-0AY0 SITOP UPS1600 EX 20 A uninterruptible power supply. SITOP UPS1600 EX 20 A uninterruptible power supply input: 24 V DC output: 24 V DC/20 A. It belongs to SITOP UPS1600 DC UPS modules. Recorded manufacturer technical characteristics include Efficiency: 97.7 %; Peak current: 60 A; Input voltage: 24 V DC; Output voltage: 24 V DC; IP protection class: IP20; Rated output current: 20 A; Operating temperature: -25 ... +70 °C.