When it comes to ensuring uninterrupted power supply, an Automatic Changeover Switch (ATS) is one of the most important electrical installations for homes, businesses, and industries. But a question many clients ask is:
“Should I buy a ready-made ATS, or have one custom-built by professional electricians?”
At Expertech Electrical Contractors Ltd, we’ve installed, tested, and serviced both types, and from our field experience, the answer depends on your load requirements and long-term reliability goals.
Ready-Built ATS Units
These are factory-manufactured systems that come as a single, compact unit.
Advantages:
Easy to install and compact.
Suitable for homes and small businesses.
Comes with built-in protections (voltage, phase failure, etc.).
Limitations:
Many are designed for light commercial use, not heavy-duty industrial loads.
Prone to overheating and burning under high current.
Difficult and expensive to repair – often the whole unit must be replaced.
Custom-Built ATS (Timers + Contactors)
This is a tailor-made system built using industrial-grade contactors, timers, and protective relays inside a control panel.
Advantages:
Handles larger loads with ease (factories, hospitals, welding shops, data centers).
Built with heavy-duty contactors rated for your exact load.
Easier to maintain – if one part fails, it can be replaced without discarding the whole system.
Better cooling and spacing inside the panel.
Proven to be more rugged and long-lasting in demanding environments.
Limitations:
Slightly higher initial design and assembly time.
Requires skilled electricians for proper configuration.
Our Professional Recommendation
For domestic or light office use, a factory-built ATS is sufficient.
For industrial or heavy commercial loads, a custom-built ATS designed and installed by certified electricians (like Expertech Electrical Contractors Ltd) offers far greater reliability, serviceability, and peace of mind.
Why Choose Expertech?
At Expertech, we don’t just install changeover switches – we design power solutions that are:
Safe – Built with the right protection for your equipment.
Durable – Using tested, industrial-grade components.
Custom-Fit – Tailored to your exact load requirements.
Serviceable – Easy to maintain, repair, and upgrade.
Whether you need a simple ATS for your home or a heavy-duty custom panel for your industry, we guarantee quality, reliability, and professional workmanship.
Get in Touch
For professional ATS installation and power backup solutions in Kenya, contact Expertech Electrical Contractors Ltd today.
Your power – our priority!
