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Rectangular black UPS tower with six IEC outlets on the rear panel

APC

APC Back-UPS CS BK500EI 500VA 300W UPS

SKU CH-0J27-04Q19 MPN BK500EI

Provides 300 W battery backup and surge protection through six IEC outlets with RS-232 and USB monitoring

  • International Version230V
  • Input Voltage Range180 - 266V Adjustable range: 160 - 300V
  • Input Frequency50/60 Hz +/- 3 Hz (auto sensing)
  • Input ConnectionIEC-320-C14 inlet
  • VA Rating500 VA
  • Watts300 Watts
  • Keeps equipment running during outages with 300 W battery backup
  • Protects six devices using three battery-backed and three surge-only IEC outlets
  • Accepts unstable mains from 160 V to 300 V without draining the battery
  • Connects via USB or RS-232 for automated shutdown software
  • User-replaceable RBC2 battery restores full runtime in eight hours

Professional power protection

The APC Back-UPS CS BK500EI is a 500 VA, 300 W battery backup unit designed for office and home office systems. It supplies battery powered and surge protected power to connected equipment during outages and voltage fluctuations. The unit operates on a 230 V international version with an input range of 180 to 266 V.

300 W load capacity

The 300 watt output rating is the single figure that decides whether this UPS can support your equipment. At full load the battery provides 2.40 minutes of runtime, enough for a controlled shutdown. The adjustable input range of 160 to 300 V widens the window before battery power is needed.

Six IEC outlets and connectivity

Three IEC 320 C13 outlets deliver battery backup while one C13 and two IEC jumpers provide surge only protection. An IEC 320 C14 inlet accepts the mains lead. RS 232 and USB ports enable management software for automatic shutdown. The user replaceable RBC2 battery cartridge is hot swappable for continuous operation.

Highlights

  • Keeps equipment running during outages with 300 W battery backup
  • Protects six devices using three battery-backed and three surge-only IEC outlets
  • Accepts unstable mains from 160 V to 300 V without draining the battery
  • Connects via USB or RS-232 for automated shutdown software
  • User-replaceable RBC2 battery restores full runtime in eight hours

Specifications

BrandAPC
SeriesBack-UPS CS
ModelBK500EI
International Version230V
Input Voltage Range180 - 266V
Adjustable range: 160 - 300V
Input Frequency50/60 Hz +/- 3 Hz (auto sensing)
Input ConnectionIEC-320-C14 inlet
VA Rating500 VA
Watts300 Watts
Output Voltage230V
Output Frequency47 - 63 Hz
Outlets6
Outlet Type(1) IEC 320 C13 (Surge Protection)
(3) IEC 320 C13 (Battery Backup)
(2) IEC Jumpers (Surge Protection)
Battery Recharge Time8 hour(s)
Battery ReplaceableRBC2, RBC2J
AlarmsAlarm when on battery: distinctive low battery alarm: overload continuous tone alarm
Interface PortRS-232, USB
Surge Energy Rating310 Joules
FeaturesReceptacles: 2 x IEC 320-C13,3 x IEC 320-C13,1Load Capacity (VA): 500 VALoad Capacity (Watt): 300 WInput Voltage: 220 V ACOutput Voltage: 230 V ACBackup/Run Time (Full Load): 2.40 MinuteHeight: 6.5" (165.1 mm)Width: 3.6" (91.4 mm)Depth: 11.2" (284.5 mm)Weight (Approximate): 6.30 kgPackage Contents: Back-UPS CSSoftware CDUSB cableUser ManualLimited Warranty: 2 Year
Dimensions6.50" x 3.58" x 11.18" (H x W x D)
Weight13.93 lbs.
Package Contents90486L
Shipping weight6.35 kg
Package size457 × 406 × 356 mm

Questions about this item

How long will the 300 W rating actually run my equipment during a blackout?

At full 300 W load the unit provides about 2.40 minutes of runtime; lighter loads will extend that time.

What do the RS-232 and USB ports let me do in practice?

They connect to management software for safe shutdown and monitoring; only one port can be used at a time.

What space and mounting clearance does the unit need?

It measures 6.50 inches high, 3.58 inches wide and 11.18 inches deep, so allow at least that footprint on a flat surface.

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