Choosing a Legrand UPS for a network room starts with the real load in watts, then the backup time you need, then how it mounts in the rack. AZEIDK supplies the Legrand KEOR SPE R/T 2200VA UPS (part number 311071) in Saudi Arabia, rated 2200 VA / 1980 W, which fits a 19-inch rack or stands as a tower, together with the Linkeo 646760 42U floor network cabinet. This guide shows how to work out the load of an NVR, PoE switches and a firewall, when this UPS is enough, and how to pick a cabinet that takes it. Brand page: Legrand at AZEIDK.
Key takeaways
- The KEOR SPE R/T 2200VA is a line-interactive UPS with pure sine-wave output, rated 2200 VA and 1980 W, 3U high and convertible between rack and tower.
- Batteries are 6 × 12 V 7 Ah VRLA, front-access and hot-swappable.
- USB, RS232 and SNMP allow orderly shutdown of connected equipment, with an EPO input and two dry contacts.
- The Linkeo 646760 cabinet is 42U, 2026 × 610 × 630 mm, with a 400 kg permissible load, glass front door, IP20 and IK08.
- Backup time comes from Legrand’s runtime tables at your actual load, not from a fixed figure.
In this article
Why a network and CCTV room needs its own UPS
A network room or IDF in an office building, hotel or factory usually holds the CCTV recorder (NVR), PoE switches feeding cameras, Wi-Fi access points and IP phones, plus the firewall and router. A power dip of a few seconds reboots all of it, loses minutes of recording and can corrupt the NVR database or a configuration file.
The UPS has three jobs here: ride through short outages without the equipment noticing, hold the load until a generator takes over where there is one, and shut equipment down in order if the outage runs long. That is why a large rating alone is not the answer. The unit has to match the real load and talk to the equipment so it can send the shutdown command. For the systems these rooms serve, see network and communication systems.
Legrand UPS specifications: KEOR SPE R/T 2200VA
The data below is from our product page, Legrand KEOR SPE R/T 2200VA rack/tower UPS, taken from the manufacturer’s official datasheet.
| Item | Value |
|---|---|
| Part number | 311071 |
| Topology | Line-interactive |
| Rating | 2200 VA / 1980 W |
| Output waveform | Pure sine wave |
| Input voltage range | 160–288 V at full load (230 V nominal) |
| Output voltage | 230 V ±1%, adjustable to 200/208/220/230/240 |
| Outlets | 2 groups of 4 × IEC C13 plus 1 × IEC C19; one group programmable |
| Batteries | 6 × 12 V 7 Ah VRLA, front-access, hot-swappable |
| Communication | USB (HID), RS232, SNMP; EPO; two dry contacts |
| Form factor | 3U, rack or tower, LCD screen |
| Dimensions and weight | 440 × 132 × 500 mm, 28.3 kg |
The same series includes 311065 (750 VA), 311066 (1000 VA) and 311072 / 311073 (3000 VA), which helps when your load is well below or slightly above 2200 VA.
How to size a UPS for a network room
A common mistake is to add up the power supply ratings printed on the equipment, such as 1000 W on a switch, and treat that as the load. That is the maximum of the power supply, not what the device draws. A better method:
- List the equipment that will run on the UPS: NVR, PoE switches, core switch, firewall, router and wireless controller if there is one.
- Take the maximum consumption in watts from each datasheet. For an NVR, add the hard disks if the datasheet quotes power without them.
- For PoE switches, count the switch’s own consumption plus the power it actually delivers to cameras and access points. That power passes through the UPS. We cover PoE budgets in PoE switch power budget for CCTV.
- Check the total against both limits: 1980 W and 2200 VA. The load must stay under each.
- Leave headroom for growth. A load close to the limit shortens battery time and leaves no room for another switch or more cameras.
Illustrative example only: a room with an NVR, two PoE switches, a firewall and a router whose datasheet totals come to 900 W sits comfortably inside a 2200 VA unit. If the load goes past 1980 W, use the 3000 VA model from the same series or split the load across two units.
Backup time: what to expect
Runtime depends on the actual load. The lower the load, the longer the runtime, and the relationship is not linear. Legrand publishes runtime tables for each model by load level, and the figure should come from those tables at your calculated load, not from a general number.
Decide what you need from the battery first:
- With a generator and automatic transfer, you need a few minutes to cover the changeover.
- Without a generator, you need enough time to shut down the NVR and servers in order through SNMP or USB.
- If you need hours of camera operation, that calls for a different solution with much larger battery capacity; a 2200 VA unit on internal batteries will not do it.
A practical point for the Saudi climate: VRLA battery life drops with room temperature. A network room without continuous cooling will wear batteries out much faster, so room cooling belongs in the design. Front-access hot-swappable batteries mean you can change them without dropping the load.
Legrand Linkeo 42U floor cabinet
The Linkeo 646760 belongs to Legrand’s range of 19-inch floor cabinets for patch panels, switches and servers. Details are on the Legrand Linkeo 646760 42U floor network cabinet page:
- 42U, external dimensions: height 2026 mm, width 610 mm, depth 630 mm.
- Permissible load 400 kg.
- Front door in 5 mm clear safety glass with one-point locking.
- Uprights in 1.5 mm galvanised, painted steel, grey RAL 7016.
- IP20 to IEC EN 60529 and IK08 to IEC EN 62262.
- Standards: IEC 61587, EIA-310-E, IEC 60297-3-100.
The range also comes in heights from 24U to 47U, with footprints from 600 × 600 mm up to 800 × 1000 mm.
Putting the UPS and cabinet together
- Depth: the UPS is 500 mm deep and the 646760 cabinet is 630 mm deep externally. Check the usable depth between front and rear profiles in the cabinet datasheet before ordering. For deep servers, choose an 800 or 1000 mm deep version from the same range.
- Position: put the UPS at the bottom of the cabinet. At 28.3 kg it lowers the centre of gravity, and front battery access stays easy.
- Total weight: add up the UPS, switches, servers and patch panels and keep the total under 400 kg.
- Rack space: the UPS takes 3U, leaving 39U for patch panels, switches, the NVR, cable management and ventilation gaps.
- Outlets: use the C19 outlet for the highest-draw device and the C13 outlets for the rest. If you have more devices than outlets, add a suitable PDU.
- Orderly shutdown: enable the SNMP card or USB link with shutdown software on the NVR or server, or the feature does nothing.
For small sites that do not need a full floor cabinet, our range includes wall cabinets such as the AZ-Link 12U wall-mount network cabinet, but compare its depth with the UPS depth first.
Where this combination fits
Typical cases for a 2200 VA UPS with a 42U cabinet:
- The main network room in a mid-size office building.
- Floor IDF rooms in hotels and hospitals.
- The CCTV and NVR room in a factory or warehouse, as part of security and surveillance systems.
- Access control and IP telephony rooms under low current systems.
Large data rooms with high loads need a separate study with larger UPS units and dual power distribution, which is outside the scope of this article.
Frequently asked questions
What is the difference between VA and W on a UPS?
VA is apparent power and W is the real power the equipment uses. The KEOR SPE 2200VA handles 2200 VA and 1980 W, and the load must stay below both.
How many minutes will a 2200VA UPS run a CCTV room?
It depends on the actual load. Add up the equipment consumption in watts, then read the runtime from Legrand’s runtime table for this model. No single figure fits every room.
Can the KEOR SPE go in a wall-mount rack?
It is 19 inches wide, 500 mm deep and weighs 28.3 kg. Many wall cabinets are shallower than that or not rated for the weight, so check the wall cabinet depth and load rating, or stand the UPS as a tower beside it.
Why does pure sine-wave output matter?
Modern power supplies in servers and switches work best on a sine wave. Some low-cost units produce an approximated waveform that can cause problems with these supplies.
Is the Linkeo 42U cabinet suitable for servers?
Yes for height and the 400 kg load rating, but the 646760 is 630 mm deep externally. For deep servers, choose an 800 or 1000 mm deep version of the same range.
Do UPS batteries need periodic replacement?
VRLA batteries have a limited life that depends on room temperature and the number of discharges. Watch the unit’s alarms and battery test results; on this model the batteries can be changed from the front without dropping the load.
Conclusion
Sizing a UPS for a network room starts with the real load in watts, then runtime from the manufacturer’s tables, then fit with the cabinet in depth, weight and rack space. The Legrand KEOR SPE R/T 2200VA with a Linkeo 42U cabinet suits many mid-size network and CCTV rooms, provided the load is calculated properly and orderly shutdown is set up.
Fitting out a network or CCTV room? Send the equipment list or BOQ, and our team will calculate the load and propose the right UPS and cabinet. Talk to the AZEIDK team
