Phoning around for automatic transfer switch in Johannesburg takes time you don't have when the power is off. Send one job card instead and we pass it to electricians and generator installers who serve Johannesburg and nearby areas of Gauteng. They quote on the work, parts, travel and warranty.
Automatic Transfer Switch for Johannesburg sites
Looking for an automatic transfer switch in Johannesburg? Registered electricians and generator installers serving Johannesburg and the rest of Gauteng quote on single and three phase ATS panels, auto start modules and backup generator wiring, with a CoC on completion. Send one request with your generator size and supply type.
Want to know more first? Our automatic transfer switch guide covers the options, what to check and what affects the price.
Generators in Johannesburg
Johannesburg households learnt about generators the hard way. Long stretches of load-shedding, followed by failing substations and cable theft in suburbs like Melville, Westdene and parts of Soweto, left many streets without power for days at a time. Today the city runs everything from portable inverter units in townhouses to large diesel gensets with automatic transfer switches in office blocks, clinics and apartment buildings. At around 1,750 metres the thin air cuts engine output noticeably, so undersized sets struggle on hot afternoons. Mine dumps and dry winters add fine dust. Repairs, services and ATS installs are handled by technicians from City Deep and Industria.

Typical automatic transfer switch requests in the area come from:
- Homes: a single phase ATS that starts the standby set during load-shedding while you are out
- Shops, offices and restaurants: a three phase ATS that keeps tills, servers and fridges on supply within seconds
- Estates and complexes: an ATS keeping gates, lifts and booster pumps running for every unit without a caretaker
- Clinics, schools and towers: fast, logged transfer for clinics, cell towers and pump stations that cannot stop
- Factories, mines and sites: large motorised transfer switches with phase failure detection and load priority
- Lodges, venues and events: unattended changeover at lodges and guesthouses so guests barely notice an outage
Local conditions in Johannesburg
In Johannesburg, thin air and mine dump dust is what shortens a generator's life. Ask each technician or dealer to allow for it: a set sized with altitude derating and heavy-duty air filters.
At about 1 750 m above sea level, expect roughly 9% less output than the nameplate rating from a naturally aspirated engine, and summer highs around 26 °C. Automatic Transfer Switch usually covers 5 to 1,000 kVA, diesel, petrol or LPG with electric start.
What to include in your request
- Give the generator kVA and whether it has electric start
- Say whether the supply is single or three phase
- Note the main breaker size on the board
- Mention any inverter or solar system already fitted
- Send a photo of the distribution board
The more detail you give, the more accurate your quote will be.
Service area: Johannesburg and surrounds
Technicians, dealers and hire companies on our network work in Johannesburg and surrounding areas, including Sandton, Randburg, Roodepoort, Soweto, Rosebank, Fourways, Melville. Give the suburb so the quote can include travel, and say whether the generator can be brought to a workshop or needs a mobile call-out.
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