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₦822,250.00
"Three-Phase Power. Single-Minded Protection. Vectronic AVR 10kVA (3-Phase)."
You've invested in three-phase power for a reason – more efficiency, smoother motor operation, and the ability to run heavier equipment. But here's the problem Nigerian business owners miss: unstable three-phase voltage destroys equipment even faster than single-phase.
Phase imbalance. Brownouts on one leg. Spikes on another. Before you know it, your 3-phase compressor, industrial printer, elevator, or small manufacturing machine starts humming strangely – then goes silent forever.
Enter the Vectronic AVR 10kVA (3-Phase) – a compact, industrial-grade automatic voltage regulator designed specifically for small to medium three-phase loads. It takes unstable 3-phase input (from 170V to 480V phase-to-phase) and delivers clean, balanced 380V/400V output ±3% – protecting each phase independently.
Perfect for: small factories, event centers, schools, churches, clinics, cold rooms, bakeries, laundromats, and commercial workshops that run three-phase equipment but can't afford a massive 100kVA+ industrial unit.
Don't let phase imbalance burn your business. Regulate.
| FeatureBenefit | |
| 10kVA / 8kW true 3-phase rating | Perfect for small to medium three-phase loads – cold rooms (5–10hp compressors), small CNC machines, 3-phase AC units (5–7.5hp), industrial ovens, elevators, water pumps, and bakery mixers. |
| Wide 3-phase input range: 170V – 480V (phase-to-phase) | Keeps working during severe brownouts and overvoltages that would shut down cheaper AVRs. Survives Nigeria's worst grid days. |
| Precise output: 380V/400V ±3% (selectable) | Safe, stable voltage for all 3-phase equipment – prevents overheating, phase imbalance damage, and premature motor failure. |
| Independent phase correction (servo-motor + toroidal autotransformer per phase) | Each phase is regulated individually. Critical when utility supply has different voltages on L1, L2, and L3 – common in Nigerian commercial areas with overloaded transformers. |
| High-efficiency toroidal transformer (>96%) | Runs cooler and quieter than traditional stabilizers. Lower electricity bills – less energy wasted as heat. |
| Fast correction response: ≤ 20ms | Responds instantly to voltage dips and spikes – your equipment never sees dangerous fluctuations. |
| Digital microprocessor control with LCD display | Real-time monitoring: Input voltage (L1-L2, L2-L3, L3-L1), output voltage, load current per phase, and fault indicators. No technician needed for basic diagnostics. |
| LED indicators for each phase | Quick visual check – green means good, red means problem. At-a-glance peace of mind. |
| Automatic bypass switch | If the AVR overloads or has an internal fault, it automatically switches connected equipment directly to utility power – zero extended downtime. |
| Adjustable time delay (0–10 seconds) | Prevents relay/servo stress during generator startup or grid fluctuations. Extends AVR lifespan. |
| Overload capacity: 150% for 10 seconds | Handles motor startup surges (compressors, pumps, elevators) without tripping. |
| Full protection suite | Over-voltage, under-voltage, overload, short circuit, over-temperature, phase loss, and phase sequence reversal protection. Automatic shutdown and audible alarm on critical faults. |
| Phase loss + phase sequence protection | Shuts down safely if one phase disappears or phases are wired incorrectly – prevents catastrophic motor damage. |
| Heavy-duty metal enclosure (floor-standing or wall-mountable) | Industrial build quality – fire-resistant, impact-resistant, and designed for Nigerian commercial environments (dust, heat, humidity). |
| Cooling fans with temperature control | Fans run only when needed – quieter operation and longer fan life. |
| Remote monitoring ready (RS-485 / Modbus – optional) | Integrate with building management systems or receive alerts remotely. |
| Business / FacilityWhy They Need It | |
| Small factory / workshop | Protecting CNC routers, lathes, injection molding machines, compressors, and conveyors – one voltage dip can ruin a production run. |
| Cold room / freezer storage | 3-phase compressor motors are expensive to replace. Phase imbalance is a silent killer. This AVR extends compressor life by years. |
| Bakery / commercial kitchen | 3-phase ovens, mixers, dough kneaders, and proofers need stable voltage for consistent results. No more burnt batches. |
| Laundromat / dry cleaner | Commercial washing machines, dryers, and pressers – all rely on 3-phase motors. Voltage instability causes erratic operation and breakdowns. |
| Event center / hall | 3-phase sound systems, lighting rigs, HVAC, and elevators – keep events running smoothly without embarrassing power glitches. |
| Church / religious center | 3-phase audio systems, projectors, AC units, and kitchen equipment – protect your investment and avoid Sunday morning meltdowns. |
| Clinic / small hospital | 3-phase medical equipment (X-ray, autoclave, lab centrifuges), ACs, and water pumps – patient care depends on reliable power. |
| School / vocational center | 3-phase workshop equipment, science lab gear, computer labs, and ACs – protect educational tools from voltage damage. |
| Printing / signage shop | 3-phase printers, laminators, and cutting machines – voltage instability causes misalignments, color errors, and costly reprints. |
| Water borehole / pumping station | 3-phase borehole pumps are expensive to pull out and rewind. An AVR prevents undervoltage burnout. |
| Small elevator / lift | 3-phase elevator motors need balanced voltage for smooth operation – protects residents or customers from getting stuck. |
Trust signals:
Q: What is the difference between single-phase and 3-phase AVR?
Single-phase AVR regulates one hot wire + neutral (220V) – used for homes and small shops. 3-phase AVR regulates three hot wires (L1, L2, L3) delivering 380V–415V phase-to-phase – used for industrial and commercial equipment with motors, compressors, and heavy machinery. They are not interchangeable.
Q: How can I tell if I have 3-phase power?
Look at your meter or distribution board:
If unsure, send a photo of your meter/distribution board to our WhatsApp – we'll identify it for you.
Q: How much equipment can a 10kVA 3-phase AVR support?
A 10kVA / 8kW AVR can support approximately:
For accurate sizing, chat with our team with your equipment list – free load assessment for serious buyers.
Q: Can I connect the Vectronic 10kVA 3-phase AVR to my 3-phase generator?
Yes – strongly recommended. Many Nigerian 3-phase generators (especially smaller units or older models) produce voltage that fluctuates ±15–20%. The AVR stabilizes this before it reaches your equipment. The built-in time delay prevents AVR hunting during generator warm-up or load changes.
Q: Does the AVR protect against phase loss (one phase disappearing)?
Yes. Phase loss is a common issue in Nigerian commercial areas – a transformer fuse blows on one phase, or a cable gets damaged. The Vectronic AVR detects phase loss within milliseconds and shuts down output, preventing motors from running on two phases (which causes overheating and burnout within minutes).
Q: What is phase imbalance and why is it dangerous?
Phase imbalance means L1, L2, and L3 have different voltages (e.g., 220V, 215V, 205V). Causes:
Dangers: Motors run hotter, lose efficiency, and fail prematurely. Vibration increases. Torque decreases. The Vectronic AVR corrects each phase independently, eliminating imbalance.
Q: What is the physical size and weight?
Typically 500mm (W) x 400mm (D) x 700mm (H) – about the size of a mini-fridge. Weight: 50–70kg. Requires two people to lift. Wall-mountable on reinforced wall or floor-standing with included brackets.
Q: Does the AVR consume power when equipment is idle?
Yes, a small amount (typically 100–300 watts) for the control system, transformer idle losses, and cooling fans. For most businesses, this is negligible compared to total consumption. You can install an isolator switch to completely power off the AVR during extended shutdowns (weeks).
Q: What is the typical lifespan of this AVR?
With proper installation, moderate loading (not exceeding 10kVA), and basic annual maintenance (cleaning dust, checking connections) – 8–12 years minimum. The servo motor and carbon brushes are wear items that may need replacement every 5–7 years; these are available from Vectronic Nigeria.
Q: Can I install this AVR myself?
Strongly recommend using a licensed 3-phase electrician. Incorrect wiring (phase sequence wrong, neutral missing, undersized cables) will damage the AVR and void the warranty. We can provide electrician referrals in your area.
Q: Do I need separate protection for each piece of equipment?
No – the AVR connects after your main 3-phase breaker and protects everything downstream. However, if you have extremely sensitive equipment (medical imaging, high-end CNC), we recommend adding a small UPS after the AVR for additional isolation.
Q: What is the warranty period?
Q: What is the price range for the Vectronic 10kVA 3-Phase AVR?
Prices vary based on:
For accurate pricing, chat with us directly – we offer competitive rates for commercial buyers and bulk discounts for contractors buying multiple units.
Your 3-phase equipment deserves 3-phase protection. Don't let voltage instability destroy your business investment.
Get the Vectronic AVR 10kVA (3-Phase) at the best price in Nigeria – exclusively through Kara Nigeria Online Shop.
Not sure if 10kVA is the right size for your business? Need a quote including delivery and installation by a certified 3-phase electrician?
Tap the WhatsApp button now to chat with our commercial power solutions team – we'll perform a free load assessment, confirm your phase configuration, and provide a customized quote within 24 hours.