What must the UPS back up?
UPS Installation South Africa keeps the network alive when the power is not. A unit sized for what it has to carry, batteries sized for how long it has to carry it, and a safe place to put both.
Say what has to stay up and get UPS quotes.
Get the Best QuoteWhat Decides the Size
- The load. Add up the watts of everything that has to stay on.
- The runtime. Minutes to shut down safely, or hours to keep working.
- The battery bank. Runtime is batteries; the unit itself only sets the load it carries.
- The topology. Line interactive for networks, online double conversion for servers.
- Recharge time. Back to back outages need a unit that recharges quickly.
What People Usually Protect
- The comms cabinet. Router, ONT, switch and access points, a small load for long runtime.
- Servers. Enough runtime to shut down cleanly, or to ride through.
- Cameras and recorders. A CCTV system that is off during an outage records nothing.
- Access control. So doors behave predictably and the logs keep running.
- Point of sale. Tills and the network they depend on.
UPS Installation Prices
Ballpark backup power figures so you can check a quotation.
| Item | Ballpark price |
|---|---|
| 1kVA line interactive UPS, supplied and installed | R3,500 - R9,000 |
| 3kVA long run UPS, excluding batteries | R12,000 - R35,000 |
| 3kVA long run system with batteries, installed | R25,000 - R75,000 |
| Battery bank expansion, per battery | R1,800 - R5,500 |
| Small UPS for a router and ONT | R1,800 - R5,500 |
| Rack mounted UPS, 2kVA to 3kVA | R14,000 - R45,000 |
| Battery replacement, per set | R3,500 - R18,000 |
Prices JUST UPDATED. Ballpark figures, rounded, excluding VAT. They reflect typical South African network cabling and IT infrastructure rates. They are not our prices or quotations, and no provider is bound by them. Confirm what each quotation includes, such as travel, cable and trunking, testing and certification, and minimum callout fees.
Get a backup price for your own equipment rather than a range.
Get the Best QuoteWhat Affects the Price
- The load in watts. Not the number of devices, the actual draw.
- Runtime wanted. Four hours costs several times what twenty minutes does.
- Battery type. Lithium costs more up front and lasts far longer than sealed lead acid.
- Online or line interactive. Online units cost more and protect more.
- Installation. A plug-in desktop unit against a hard-wired rack system.
- Where it goes. Batteries need ventilation and a floor that carries the weight.
What to Include in Your Request
- What must stay up. Device by device, with the watts if you have them.
- How long for. Minutes to shut down, or hours to keep trading.
- Where it will sit. In a rack, on the floor, in a cupboard or a dedicated room.
- The power supply. Plug point or hard wired, and the circuit it is on.
- Any generator or inverter. It changes what the UPS has to do.
- Existing UPS. Age and whether the batteries have ever been replaced.
Before You Size a UPS
- Measure the real load. Nameplate ratings are much higher than actual draw.
- Protect the line equipment. A server on backup with the router off is still offline.
- Leave headroom. Running a UPS near its limit shortens battery life sharply.
- Budget for batteries. Sealed lead acid typically needs replacing every three to five years.
- Check the ventilation. Battery banks need airflow and a sensible ambient temperature.
UPS Installation FAQs
What size UPS do I need?
Add up the watts of everything that must stay on, add about 30 percent headroom, then choose the runtime separately. A comms cabinet is often only 150 to 400 watts, which is why long runtimes on it are affordable.
How long will a UPS last during load shedding?
A small unit on a comms cabinet typically gives one to four hours depending on the battery bank. A server load of a few kilowatts usually gives minutes unless a large bank is fitted.
Lithium or lead acid batteries?
Lithium costs roughly two to three times more up front, lasts several times longer, tolerates frequent cycling far better and weighs less. With daily outages it usually works out cheaper over its life.
Is an inverter the same as a UPS?
No. A UPS switches over fast enough that equipment never notices, and conditions the power. Many home inverters have a gap on transfer that reboots sensitive equipment.
Backup power is one of the jobs providers on Network Cabling South Africa quote for, alongside cabinets, server rooms and cabling.
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