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Compact rectangular UPS in matte black plastic with six IEC C13 outlets and USB port

APC

APC BK350EI UPS 350 VA 210 W 230 V

SKU CH-WD66-6V5MS MPN BK350EI

Provides 350 VA battery backup with six IEC outlets and USB or serial management

  • Voltage version230 V
  • AC input voltage230 V
  • Input line frequency50/60 Hz +/- 3 Hz (auto sensing)
  • Volt-ampere rating350 VA
  • Power rating210 W
  • Voltage output230 V
  • 350 VA / 210 W capacity keeps a desktop running during outages
  • 7 minutes backup at full load protects work long enough to save and shut down
  • 1 minutes at half load extends runtime for lighter loads
  • USB and RS-232 ports enable automatic shutdown software control
  • 300 joule surge rating plus RJ-45 protection guards connected equipment from spikes

Compact UPS for essential desktop protection

The APC BK350EI is a 350 VA, 210 W battery backup designed for 230 V environments. It provides surge protection and battery power to a small workstation, router or modem during short outages. Four IEC C13 outlets supply battery backup while a fifth outlet offers surge-only protection. RS-232 and USB ports enable monitoring and safe shutdown software.

Step up from a basic power strip

This unit replaces a simple surge strip when you need a few minutes of runtime to save work and shut down gracefully. At half load it delivers about 18 minutes of backup; at full load roughly 4.7 minutes. The jump is worth it for users who cannot afford an abrupt power loss on a single PC or networking gear.

Fits a small-footprint build

The compact chassis measures 6.5 by 3.6 by 11.2 inches and weighs 13.9 lbs, so it sits easily under a desk or on a shelf. IEC C14 input and C13 outputs integrate with standard computer power cords. RJ-45 pass-through protects a modem or fax line. A six-hour recharge readies the battery for the next event.

How it compares

Measured against everything we stock in Uninterruptible Power Supplies (UPS), at today’s prices. Recalculated every night.

Price $140.99
Cheaper than about 86% of the 1,153 comparable items (median $948.99).

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Specifications

Product
Brand nameAPC
Model nameBK350EI
Ports & slots
Communication portsRS-232, USB
Protected data linesRJ-45 Modem/Fax protection (two wire single line)
Power
Voltage version230 V
AC input voltage230 V
Input line frequency50/60 Hz +/- 3 Hz (auto sensing)
Volt-ampere rating350 VA
Power rating210 W
Voltage output230 V
Power outlets(1) IEC 320 C13 (Surge Protection)
(3) IEC 320 C13 (Battery Backup)
(2) IEC Jumpers (Battery Backup)
Runtime on batteryTypical Backup Time at Half Load :18.1 minutes (105 W)
Typical Backup Time at Full Load :4.7 minutes (210 W)
Battery charge time6 hour(s)
Surge protection rating300 Joules
Size & build
Product dimensions6.5 in × 3.6 in × 11.2 in
Product weight13.9 lb (6.31 kg)
Shipping weight7.71 kg
Package size508 × 254 × 254 mm
Environment & compliance
Regulatory approvalsC-tick,CE,EN 50091-1,EN 50091-2,GOST,VDE

Questions about this item

What clearance is needed for the 11.2 inch depth of the BK350EI?

The unit measures 6.5 inches wide, 3.6 inches high and 11.2 inches deep, so allow at least that depth plus cable bend radius behind the IEC C14 inlet.

Which cable must be connected first to enable USB monitoring on the BK350EI?

Plug the supplied USB cable into the UPS port and the PC, then install the PowerChute software from the CD before connecting loads to the battery-backup outlets.

When should the internal battery be replaced in the BK350EI?

Expect roughly 3–5 years; replace when runtime at 105 W drops well below 18.1 minutes or the unit signals a battery fault via the USB/RS-232 interface.

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