Siemens 6EP4134-3AB00-1AY0 SITOP UPS1600 10 A USB Uninterruptible Power Supply. SITOP UPS1600 10 A USB uninterruptible power supply with USB interface input: 24 V DC output: 24 V DC/10 A. It belongs to SITOP UPS1600 DC UPS modules. Recorded manufacturer technical characteristics include Interface: USB; Efficiency: 97.5 %; Power Loss: 6 W; IP Protection: IP20; Input Voltage Range: 21 ... 29 V DC; Peak Output Current: 30 A; Rated Input Current: 14 A; Rated Output Current: 10 A.