Schneider Electric SC620 Uninterruptible Power Supply

The APC Smart-UPS SC620 (Schneider Electric) is a 620 VA / 390 W uninterruptible power supply designed for small office/home office setups, delivering 120 V nominal output on four NEMA 5-15R outlets to protect a single computer, NAS, router, or other critical gear from outages and voltage sags. It connects to 120 V mains with auto-sensing 50/60 Hz input and an input voltage range around 82–144 V, uses a 1.83 m (6 ft) NEMA 5-15P power cord, and includes an RS-232 DB-9 port plus a PowerChute software CD for orderly shutdown of connected devices. The SC620 houses a maintenance-free sealed lead‑acid RBC4 battery with a typical recharge time of about 5 hours; the RBC4 battery is replaceable to extend the unit’s service life, and the output waveform is a stepped sinewave at 120 V, making it suitable for protecting a small workload up to 390 W while remaining compatible with common office equipment.