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APC Back-UPS CS 350VA, 230V, 4 IEC outlets (1 surge)


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This product is part of the Back-UPS range. The BK350EI features a total of 6 power outlets, 5 of which are UPS battery backup and one that is surge only. Its runtime at 100W is 14 minutes 52 seconds. It provides data line protection with a RJ45 analog phone line for phone or fax or modem or DSL. Its dimensions are 16.5 x 9.1 x 28.4 cm and 6.32kg. The BK350EI ensures office systems and their valuable data are protected from dangerous power surges, spikes and blackouts.


Lead timeUsually in Stock
Run time for load
Enter the total load (power draw) of all devices that will be protected by the UPS. This will be used to estimate the run time of your devices during a total power outage. Adding run time increases availability by allowing the system to operate through longer outages without shutting down.
Min-max: 21-210 W
Max. Capacity Used
The maximum percentage of UPS capacity used to support your specified load.
Main Input Voltage230 V
Main Output Voltage230 V
Rated power in W210 W
Rated power in VA350 VA
plug standardIEC 60320 C14
output connection type3 IEC 60320 C13
1 IEC 60320 C13 surge
2 IEC Jumpers
Cable length1.16 m
number of cables2
battery typeLead-acid battery
provided equipmentCD with software
Documentation CD
Installation manual in japanese
Detachable IEC power cord
Detachable 1.2 m IEC power cord
Telephone cable
USB cable
Warranty card
max runtime45 min
Number of power module free slots0
Number of power module filled slots0
Height16.5 cm
width9.1 cm
Depth28.4 cm
Net weight6.32 kg
mounting locationFront
mounting preferenceNo preference
mounting modeNot rack-mountable
Two post mountable0
USB compatibleNo
network frequency50/60 Hz +/- 3 Hz auto-sensing
input voltage limits180...266 V
maximum input current7 A
Switching current capacity7 A
Maximum configurable power in W210 W
output frequency47...63 Hz sync to mains
50/60 Hz +/- 1 Hz unsynchronised
UPS typeStandby
Maximum configurable power in VA350 VA
Transfer time6 ms typical : 10 ms maximum
product certificationsC-Tick
standardsEN/IEC 62040-1:2019/A11:2021
EN/IEC 62040-2:2006/AC:2006
EN/IEC 62040-2:2018
Equipment protection policyLifetime : 100000 euros
Lifetime : 50000 GBP
Ambient air temperature for operation0…40 °C
relative humidity0…95 %
Operating altitude0...10000 ft
Ambient air temperature for storage-15…45 °C
storage Relative Humidity0…95 %
Storage altitude0.00…15240.00 m
Heat dissipation19 Btu/h
Batteries & Runtime
Run TimeView Runtime Graphaction_new_window
EfficiencyView Efficiency Graphaction_new_window
number of battery filled slots0
Number of battery free slots0
Battery recharge time6 h
number of battery replacement quantity1
Battery voltage12 V
battery capacity7.0 Ah
battery charger power14 W rated
Battery power in VAH116 VAh capacity
84 VAh runtime
Battery life4…6 year(s)
Replacement batteryRBC2action_new_window
Battery graph commentsThis graph is based on actual measured runtime data. All measurements were taken with new, fully charged batteries and a balanced resistive load (PF = 1.0). Actual runtimes may vary from the values of this graph. Actual runtimes are dependent on several v
extended runtime0
Communications & Management
Free slots0
control panelLED status display with on line : on battery : replace battery and overload indicators
alarmAlarm when on battery : distinctive low battery alarm : overload continuous tone alarm
Surge Protection and Filtering
Surge energy rate310 J
noise suppressionFull time multi-pole noise filtering : 5% IEEE surge let-through : zero clamping response time : meets UL 1449
Data line protectionRJ45 analog phone line for phone/fax/modem/DSL
Packing Units
Unit Type of Package 1PCE
Number of Units in Package 11
Package 1 Height17.8 cm
Package 1 Width36.8 cm
Package 1 Length24.1 cm
Package 1 Weight7.05 kg
Contractual warranty
Warranty2 years repair or replace


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Resource performance

Energy efficient product


Take-back program available

Well-being performance

Mercury free


RoHS exemption information

REACh Regulation

EU RoHS Directive

Environmental Disclosure


The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins

Circularity Profile




Software and Firmware

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