AVR Voltage Stabilizers
The Voltec A-series — pure-copper relay stabilizers for fridges, deep freezers and air-conditioners, working from as low as 75V.
Honest protection, plug & play.
A small relay AVR with a clear LED voltage meter. Hang it on the wall, plug it in, and it protects your appliance right away. No installation needed.
LED voltage meter
Shows live mains voltage.
Relay board
Fast multi-tap relay switching.
Tap windings
Multi-tap transformer that fixes the voltage.
Steel housing
Mount it on a wall or a desk.
Fast relay tap-switching.
An AVR reads the incoming voltage and switches transformer taps to bring it back near 220 V. It is reliable, low-cost protection for one appliance.
Sub-second response
Spots an out-of-range voltage and fixes it in under a second.
Multi-tap switching
Relays pick the right transformer tap for the current input.
Built-in cutoff
Over / under-voltage cutoff with delayed restart keeps compressors safe.
Plug & play
Small and wall-mountable, with no electrician and no installation.
One appliance, well protected.
TV, router & PC
1 kVA keeps one set of sensitive electronics safe from spikes.
A single AC
3 kVA handles one 1-ton air-conditioner with delayed restart.
Entry-level homes
The low-cost first step into proper voltage protection.
Sound systems
Keeps audio and entertainment gear safe from sags and surges.
Protection that everyone can afford.
Affordable entry
Proper voltage protection at a household price.
Fast relay correction
Sub-second tap switching across a wide range.
OV / UV cutoff
Cuts off on dangerous over- or under-voltage.
Time-delay restart
Stops AC compressors from switching on and off too fast.
LED voltage meter
See your mains voltage at a glance.
Wall or desktop
Small housing fits anywhere, with no installation.
Three layers of protection.
Every unit watches the grid and shuts the load out of harm automatically — no manual reset, no babysitting.
Over-voltage protection
Cuts the output the instant mains voltage spikes dangerously high.
Under-voltage protection
Disconnects the load when the supply sags below a safe level.
Short-circuit protection
Isolates the output instantly if a short circuit is detected.
Compare every model.
See the specs of every model side by side. Find the one that fits your load.
| Parameter | A-25 | A-50 | A-100 | A-120SP |
|---|---|---|---|---|
| Model | Voltec A-25 | Voltec A-50 (Energy Saver) | Voltec A-100 (R3) | Voltec A-120SP |
| Capacity | 2500W | 5000W | 10000W | 12000W |
| Best for | Fridge / deep freezer (6–18 cu ft) | 1 / 1.5 ton split AC | Air conditioners | 1.5/2 ton AC + motor + lights + fans |
| Output | 220V | |||
| Input options | 150V / 120V / 100V / 70V | — | — | — |
| Relays | 3 / 4 / 5 / 7 | 2 | 3 (R3) | 5 (R5) |
| Contact material | 100% pure copper | 100% pure copper | 99.99% pure copper | 99.99% pure copper |
| Protection | Time-delay, high/low-voltage cutoff | — | — | — |
| Input range | — | 100V – 260V AC | — | — |
| Works from | — | — | — | 75V (low voltage) |
We can build custom setups too. Send us your load details and we will suggest the right model.
Questions, answered.
What is an AVR (relay) stabilizer best for?
Which Voltec A-series model do I need?
How low a voltage can the Voltec A-series work from?
Is the Voltec A-series pure copper?
AVR or servo (SVC) — which should I buy?
Do I need an electrician to install it?
Three ways to buy yours.
Message us on WhatsApp
Tell us your load or use. Our engineers reply the same day with the right size and a price.
WhatsApp +92 342 636 8601Visit the Lahore showroom
See the range, talk to our team, and collect in person. Walk-ins welcome in business hours.
Get directions →Order for delivery
In stock and shipped Pakistan-wide, with a calibration certificate and test report. Pre-order models reserved against launch stock.
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