APC BK500BLK – Back‑UPS CS 500 VA Standby UPS

Overview :

The APC BK500BLK is a standby uninterruptible power supply (UPS) used by IT technicians, small office support teams, and home‑office infrastructure engineers to maintain power to essential electronics during utility interruptions and to protect against voltage surges. It combines battery backup with surge suppression to reduce the risk of data loss and service disruption on power loss.

Rated at 500 VA (300 W), this UPS provides short‑duration power during outages—enough for graceful shutdowns or brief continued operation of routers, workstations, NAS units, and small servers. The unit includes six outlets, split between battery‑backed and surge‑only outlets, letting users prioritize which devices continue running on battery during an outage.

Physically, the BK500BLK is a compact tower form factor with a 6 ft (1.8 m) power cord and a simple user interface with LED status indicators and audible alarms for power and battery events.

For connectivity, the UPS offers a USB management port (and in some SKUs a serial interface) enabling integration with APC PowerChute software for automated shutdown and status reporting. It also provides RJ‑11 dataline protection for analog phone/fax/modem lines against surges.

In practical deployments, BK500BLK is suited for desktop and small network environments where brief backup is needed; it should not be used as the sole UPS for mission‑critical rack infrastructure or high‑power servers.

Key Features :

• 500 VA/300 W backup power with stepped sine waveform
• Six NEMA 5‑15R outlets (3 battery + surge, 3 surge only)
• 480 J surge suppression with RJ‑11 dataline protection
• USB management interface for PowerChute software
• Tower form with LED/audible status indicators

Specifications :