Protect the plant your business runs on,
and keep the record.
Cold storage, compressors, pumps, server rooms, production lines and standby generation. TENA protects the equipment that matters, brings it back only when the supply is safe, and keeps an independent record of every event that reaches your site.
Your plant is expensive. Your supply is not reliable. And today, nothing records what happens between the two.
Surge protection nobody checks
Arresters fail silently. Yours may have stopped working months ago, and nothing would tell you.
Restarts that do the damage
When power returns, motors and compressors restart immediately, often against full pressure, which is what wears them out.
Losses you cannot document
When plant fails, there is no record of what the supply did, for your insurer, your supplier or your board.
Named plant, on its own circuit,
brought back only when it’s safe.
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01
Critical equipment on its own circuit
Compressors, pumps, motors and other critical loads are switched by a dedicated hardwired circuit from TENA in your board, never by a plug-in smart socket.
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02
Acts on real problems, not normal supply
Protection responds to supply problems that are deep enough and last long enough to matter, not to the normal variation a lawful supply is allowed to have.
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03
Brings it back only when it’s safe
Power is restored only once the supply is stable. Motors and compressors also wait out a minimum restart delay, because restarting against pressure is what usually does the damage.
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04
Tells you if something didn’t come back
If equipment that was running does not return to normal consumption after restoration, you get an alarm naming it by your own label.
Protection runs locally in the board. It never depends on the internet, and never on a payment.
Built for managing agents,
not for individual residents.
Schemes carry expensive shared plant, a duty to justify spending to owners, and a building insurer behind them. TENA is shaped around all three.
Monitored and recorded at the main supply
At the incomer TENA measures and records. It never disconnects the building.
Selective protection of common plant
Lifts, pumps, gates, intercom and lighting protected on dedicated circuits.
An evidence pack for the scheme’s insurer
Written for the building insurance claim, documenting what event reached the scheme and when.
A 30-day site audit,
credited in full if you buy.
Before you trust us with protection, let us measure. We install TENA and record your supply for 30 days.
- Voltage and currentRMS values on every phase, with active and reactive power and power factor.
- Supply qualityHarmonics, dips, swells and transients.
- Phase balanceA three-phase balance study showing where load sits.
- A written site reportThe events that reached your equipment, and what a protection policy would have done about them.
- The device can stayA conventional survey instrument is removed afterwards. If you buy, ours stays in your board.
- Beyond complianceThe report shows what reached your plant, not only whether the supply met a standard.
- Fully creditedThe audit fee is credited in full against the purchase.
- Clear scopeWe measure phase imbalance. Physical rebalancing is contractor work, quoted separately.
Commercial, industrial and body corporate sites only. Audit price on request.
What the record showed.
A valid CoC that was no longer true
Earth impedance had degraded and the surge arrester was close to failure, on a property with a clean certificate of compliance. Both were flagged early and the owner remediated before anything failed.
A generator, not the grid
During municipal powerline work, voltage fell to 194V and frequency rose to 52.8Hz, the signature of a generator supply. Without the record the event would have been described as a grid fault.
Load imbalance nobody had noticed
L2 was carrying 48% of total load against a 33% balanced norm. Structural, not transient: the kind of condition that quietly ages equipment. Correcting it is electrical contractor work; the measurement showed where to look.
Five sites, one recorded event
TENA devices at five sites across Kloof recorded the same voltage sag at the same instant, showing it was an eThekwini network event rather than a fault at any single property.
* Full event records available under NDA
One price, installed.
Two years of the full plan included.
Two years to change your mind.
Every TENA comes with a 24-month full money-back guarantee: if you are not happy, return it for a full refund. Protection never depends on a payment. Prices in South African rand, including VAT.
Delivery, installation and 24 months of monitoring software included.
24-month full money-back guarantee
After 24 months: R400 per month.
- ✓All protection logic and settings
- ✓Disconnection and safe restoration at the board
- ✓Event log kept on the device
- ✓Local viewing over the device’s own Wi-Fi access point
- ✓Alert when your surge arrester has failed
- ✓Event history stored in the cloud
- ✓Monthly report on your supply
- ✓Push notifications and alerts
- ✓Remote support and reconfiguration
- ✓Claim packs for your insurer or supplier
Delivery, installation and 24 months of monitoring software included.
24-month full money-back guarantee
After 24 months: R100 per month.
- ✓All protection logic and settings
- ✓Disconnection and safe restoration at the board
- ✓Event log kept on the device
- ✓Local viewing over the device’s own Wi-Fi access point
- ✓Alert when your surge arrester has failed
- ✓Event history stored in the cloud
- ✓Monthly report on your supply
- ✓Push notifications and alerts
- ✓Remote support and reconfiguration
- ✓Claim packs for your insurer or supplier
After 24 months, renew the plan, or keep every free feature for as long as the device is installed.
on live distribution boards
Book a site audit.
Tell us about your site and the plant you want protected. We will come back to you with audit availability and pricing.
info@enerthon.com.cy
+27 74 549 0947
75 Lewis Drive, Amanzimtoti, KwaZulu-Natal
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