Backup Power for CCTV, Alarms and Fibre Routers in Pretoria
Keep the cameras recording and the router on when the power drops.
Small, low-power backup systems for Pretoria homes and businesses that need security and connectivity to stay on.
What matters for security and connectivity
The loads that matter most in an outage are often the smallest. Security cameras and recorders that stop recording, an alarm panel with an ageing battery, and the router and fibre box that carry your internet all fail early in a power cut.
These loads need a much smaller system than a whole-building one, because their running wattage is low. Gate motors and electric fence energisers can sometimes be included where the equipment is compatible.
One thing outside your control: the fibre provider's own network can also be affected in an outage, so your router may stay on while the line upstream does not. Watt Electrical Energy Solutions also services and repairs CCTV in Pretoria.
What can stay on
A starting list of the loads usually worth backing up. Final sizing is confirmed on site.
- CCTV cameras and the recorder
- The alarm panel
- The Wi-Fi router and fibre box
- A gate motor, where compatible
- An electric fence energiser, where compatible
- A small number of LED lights
How it works
Cut the mains
A backup power system keeps your essential circuits running when the grid drops. Try the simulation below to see how power flows from the mains, through the inverter and battery, to the circuits you choose to back up.
- Lights
- Fridge
- Router
- CCTV
- PCs
Normal supply: mains power passes through the inverter to your essential circuits.
This is a visual simulation only and does not control physical electrical equipment.
Sizing estimate
How big a system do you need?
Wattages are typical estimates. Actual equipment consumption and the final system specification must be confirmed during a site assessment.
LED lights
10 W each
Fridge or freezer
150 W each
Wi-Fi router and fibre box
20 W each
CCTV cameras
8 W each
CCTV recorder
25 W each
Desktop PC with monitor
150 W each
TV or screen
100 W each
Split aircon, 12,000 BTU
1100 W each
Microwave
1200 W each
Kettle
2000 W each
Connected load
109 W
Suggested inverter
3 kVA
Estimated battery
2.56 kWh
Our smallest system is 3 kVA with a 2.56 kWh battery.
Inverter size allows for start-up surges from motors like fridges. Battery size allows for usable capacity and conversion losses. Geysers and stoves are best left off the battery. This is a starting figure, not a quote.
This calculator is a preliminary sizing aid and does not replace a site assessment, inverter compatibility checks, battery discharge limits, surge assessment or final electrical design.
The process
How your backup power installation works
- 1
List the equipment
Walk the site and note every camera, recorder, alarm, router and motor you want to keep running.
- 2
Check existing batteries
Inspect the CCTV and alarm batteries and power supplies, which often age and fail before the mains does.
- 3
Size a small backup system
Match a compact inverter and battery to the low connected load.
- 4
Install and label
Mount the equipment and label every backed-up circuit clearly.
- 5
Test by cutting the mains
With you present, cut the mains and confirm the cameras, alarm and router keep running.
FAQs
CCTV & Router Backup Power Pretoria — FAQs
Get a quote
Get a backup power installation quote
Tell us what you need to keep running and how long for. We'll come back with a clear, itemised quotation for your Pretoria premises.