Protection most systems never had
Most solar installations ship with no meaningful fault protection at all. PV protectors guard against arc faults, voltage surges, and isolation failures: the events that cause equipment damage, downtime, and, in the worst cases, fire. They retrofit to any system in a single visit.
The Gap
The protection your install probably skipped
It is an uncomfortable statistic: roughly 73 per cent of UK solar systems have no arc-fault protection fitted. DC arc faults are a known cause of solar fires, surges from lightning or grid switching can take out an inverter in an instant, and isolation faults quietly escalate until something gives.
PV protectors address all three. Arc-fault detection spots and interrupts dangerous arcing in DC circuits. Surge protection absorbs spikes before they reach your inverter. Isolation monitoring catches ground faults early, while they are still cheap to fix.
The maths is straightforward: protection costs a fraction of a replacement inverter, let alone the disruption of a fault. It is compatible with every inverter brand and fits without taking your system offline.
UK Solar Protection Gap
73%
Of UK solar systems have no arc-fault protection fitted
What It Guards Against
Three faults, one retrofit
Arc-fault detection
Identifies and interrupts dangerous DC arcing, a leading cause of solar-related fires.
Surge protection
Absorbs voltage spikes from lightning and grid switching before they reach the inverter.
Isolation monitoring
Catches ground and isolation faults early, before they escalate into damage.
All-brand compatible
Works with any inverter make and model, with no need to change existing equipment.
No downtime
Fitted in a single visit without taking your system offline.
Peace of mind
A small, one-off cost against the real risk of damage, downtime, and worse.
What Fitting Involves
A protection retrofit includes
A short, single-visit job that closes the most serious gap in most installations.
- System inspection to confirm what protection, if any, is currently fitted.
- Arc-fault, surge and isolation devices specified for your array and inverter.
- Single-visit installation with no extended system downtime.
- Compatibility with your inverter whatever the brand or age.
- Function testing to confirm every device is active and working.
- Certification documenting the protection now in place.
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Not sure if you are protected? Find out.
Most owners assume their installer fitted protection. Often they did not. A quick check settles it, and it is a small cost to put right.