About this product
Buy the APC BK350EI Back-UPS CS 350VA UPS to protect your essential electronics from unexpected power cuts, surges, and voltage spikes in South Africa. This compact 210W battery backup system provides reliable standby power with USB connectivity, audible alarms, and built-in surge protection, ensuring safe shutdown of PCs, routers, and home office equipment. Shop now for dependable power protection and uninterrupted productivity.
Overview Summary
APC BK350EI Back-UPS CS 350VA UPS is a compact power backup solution designed to protect sensitive electronics from outages and electrical disturbances. It delivers 350VA / 210W output capacity with reliable battery support for small office and home setups.
This UPS features USB communication, lightning and surge protection rated around 300 Joules, and audible alarms that notify users of power events. It supports automatic self-test functionality to help ensure battery health and readiness when needed most.
With a typical recharge time of around 6 hours, the APC BK350EI is engineered for consistent availability and dependable performance during load shedding and power instability conditions.
Performance tier: Entry-level UPS power protection
Uses: desktop computers, routers, network equipment, point of sale systems, home office devices
Overview
This APC Back-UPS BK350EI offers power and surge protection for wireless networks, computers, gaming consoles and other electronics in your home or business. The 350VA tower UPS has 4 total outlets, 3 of which are battery back up and surge protection, and one that is surge protection only. It has a surge energy rating of 310 Joules. It provides data line protection with a RJ45 analog phone line for phone, fax, modem or DSL. Its dimensions are 16.5 x 9.1 x 28.4 cm and 6,68kg. The BK350EI ensures office systems and their valuable data are protected from dangerous power surges, spikes and blackouts. This UPS has a 2-year warranty and CE product certification.
Description
The APC BK350EI Back-UPS CS 350VA is designed to deliver dependable backup power and surge protection for everyday electronic devices. Its standby UPS topology ensures that connected equipment receives immediate battery support during power interruptions, helping prevent data loss and hardware damage.
Built for home and small office environments, this UPS offers a practical balance of size and performance. The 210W output capacity supports essential devices such as desktop PCs, routers, modems, and network switches. Its USB interface enables basic monitoring and communication with supported systems for improved power management.
The unit is engineered with surge protection and audible alarms to provide early warnings during power events, making it a reliable choice for regions with unstable electricity supply.
Features
- 350VA / 210W power capacity for essential device backup
- Built-in battery backup and surge protection system
- USB interface for monitoring and system communication
- Lightning and surge protection rated around 300 Joules
- Audible alarms for power failure, low battery, and overload
- Automatic self-test for battery health monitoring
- Compact desktop design suitable for home and office use
- Fast response time for seamless power switching during outages
What's in the Box
- APC BK350EI Back-UPS CS 350VA unit
- USB communication cable
- Power cables (IEC type)
- Software CD
- Documentation and setup guide
- Telephone cable
Specifications
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Specifications and features |
| Product Code | UPAPBK350EI |
| Main |
| Run time for load 210W | 8min 36s |
| Min-max: 21-210 W |
| Max. Capacity Used | 100% |
| Main input voltage | 230 V AC 1 phase |
| Input connection | IEC 60320 C14 |
| Maximum input current | 7A |
| Switching current capacity | 7A |
| Efficiency at full load | 180...266 V |
| Input frequency | 50/60 Hz +/- 3 Hz auto-sensing |
| Output voltage | 230 V AC 1 phase |
| Rated power in W | 210 W |
| Rated power in VA | 350 VA |
| Output connection | 3 IEC 60320 C13 |
| 1 IEC 60320 C13 surge |
| 2 IEC Jumpers |
| Type of USB power supply | None |
| Maximum configurable power in VA | 350 VA |
| Maximum configurable power in W | 210 W |
| Transfer time | 6 ms typical : 10 ms maximum |
| UPS topology | Standby |
| Output frequency | 47...63 Hz sync to mains |
| 50/60 Hz +/- 1 Hz unsynchronised |
| Replacement battery | RBC2 |
| Complementary |
| Battery capacity | 7.0 Ah |
| Battery type | Lead-acid internal included |
| Control panel | LED Status display with on line : on battery |
| Free slot | 0 |
| Control panel | LED status display with on line : on battery : replace battery and overload indicators |
| Alarm | Alarm when on battery : distinctive low battery alarm : overload continuous tone alarm |
| UPS connectivity | USB port |
| Surge energy rating | 310 J |
| Noise filtering | Full time multi-pole noise filtering : 5% IEEE surge let-through : zero clamping response time : meets UL 1449 |
| Cable length | 1.16 m |
| Number of cables | 2 |
| Color | Beige |
| Height | 165 mm |
| Width | 91 mm |
| Depth | 284 mm |
| Product weight | 6.32 kg |
| Mounting location | Front |
| Mounting preference | No preference |
| Mounting mode | Not rack-mountable |
| Two post mountable | 0 |
| USB compatible | Yes |
| Mounting mode | Tower |
| Provided equipment | CD 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 |
| Number of power module filled slots | 0 |
| Number of power module free slots | 0 |
| Redundant | No |
| Range of product | Back-UPS |
| Product or component type | Uninterruptible power supply (UPS) |
| Environment |
| Product certification | RCM |
| CE |
| GOST |
| VDE |
| Standard | EN/IEC 62040-1:2019/A11:2021 |
| EN/IEC 62040-2:2006/AC:2006 |
| EN/IEC 62040-2:2018 |
| Ambient air temperature for operation | 0...40 degreesC |
| Ambient air temperature for storage | -15...45 degreesC |
| Storage altitude | 0...15240 m |
| Relative humidity | 0...95 % |
| Storage relative humidity | 0...95 % |
| Heat dissipation | 19 Btu/h |
| Operating altitude | 0...10000 ft |
| Batteries & Runtime |
| Battery type | Lead-acid battery |
| Battery voltage | 12 V |
| Battery graph comment | This 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 |
| Extendable runtime | 0 |
| Included battery module | 0 |
| Empty battery slot | 0 |
| Typical recharge time | 6 h |
| RBC quantity | 1 |
| Battery life | 4...6 year(s) |
| Battery charging power | 14 W rated |
FAQ
What devices can the APC BK350EI 350VA UPS support?
It is suitable for low to medium power devices such as desktop computers, WiFi routers, modems, and small office equipment within its 210W load capacity.
How long does the battery last during a power outage?
Backup runtime depends on load, but typically provides several minutes for safe shutdown of connected devices, with longer runtime for lighter loads.
Does the APC BK350EI protect against power surges?
Yes, it includes built-in surge protection rated around 300 Joules to help protect equipment from voltage spikes and lightning-related surges.
Can the UPS communicate with a computer?
Yes, it includes a USB interface that allows basic monitoring and shutdown management when connected to a compatible system.
How long does it take to recharge?
The typical recharge time is around 6 hours to fully restore the internal battery after use.
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