The A&E 5KVA Servo Wall-Mounted Voltage Stabilizer (AEST90-W-5KVA) is a high-precision power protection unit designed to serve as a central stabilizer for modern Nigerian apartments and small offices. Unlike standard relay stabilizers that "click" between voltage steps, this Servo-driven model provides smooth, stepless regulation to maintain a constant 220V output.
Available at Kara.com.ng, the AEST90-W series is favored for its wall-mount design, which saves floor space and keeps high-voltage equipment safely out of reach of children.
A&E 5KVA Servo 90-250V Price in Nigeria (2026 Update)
The price of the AEST90 series reflects its 100% copper toroidal transformer and the motorized servo mechanism. While more expensive than relay models, it offers superior protection for sensitive inverter-based appliances.
| Model Variant | Input Range | Estimated Price (2026) |
| AEST90-W-5KVA (Wall Mount) | 90V – 250V | ₦265,000 – ₦298,500 |
| AESG50-W-5KVA (Ultra Wide) | 50V – 260V | ₦315,000 – ₦365,000 |
| A&E 5KVA Relay Model | 90V – 260V | ₦175,000 – ₦210,000 |
Selection Tip: If your area has "stable" but low voltage (around 100V-130V), this 90V-250V model is perfect. However, if your light is so dim that bulbs barely glow (below 80V), you should upgrade to the AESG50-W 50V model.
Key Specifications (AEST90-W-5KVA)
- Capacity: 5,000VA (5KVA) / Approx. 4,000W – 4,500W Max Load.
- Input Voltage Range: 90V – 250V AC (Wide Range).
- Output Voltage: 220V ± 3% (Extreme Precision).
- Technology: Motorized Servo Carbon Brush + Toroidal Copper Transformer.
- Mounting: Wall-Mounted (Integrated brackets included).
- Display: Digital LCD showing Input Voltage, Output Voltage, and Load Level.
- Efficiency: >95%.
- Protection: High/Low Voltage cut-off, Overload, Short-circuit, and Overheat protection.
Why Choose the AEST90-W Servo Model?
- Precision for Inverter ACs: Modern Inverter Air Conditioners and Refrigerators are highly sensitive to voltage jumps. The Servo motor adjusts the voltage smoothly, preventing the "flicker" that can damage expensive circuit boards.
- Space Efficiency: By mounting the unit on the wall, you free up floor space and improve ventilation around the unit, which is critical for the lifespan of the internal transformer.
- 100% Copper Winding: A&E Dunamis uses high-grade copper, which conducts electricity more efficiently and generates less heat than aluminum-wound stabilizers found in cheaper brands.
- Silent Operation: Unlike relay stabilizers that make loud clicking sounds every time the voltage fluctuates, the servo motor operates with a quiet, motorized hum.
What Can This 5KVA Stabilizer Power?
In a typical 1 or 2-bedroom Nigerian flat, this 5KVA unit can support:
- One 1.5HP or 2HP Air Conditioner (Inverter types are best).
- One Large Double-Door Fridge or Chest Freezer.
- Whole-Home LED Lighting and Standing Fans.
- Home Theater System, 65-inch Smart TV, and Decoder.
- Washing Machine (during a separate cycle).
Maintenance & Installation Tips
- Wiring: Always use at least 6mm or 10mm Pure Copper cables for installation. Using thin or "mixed" cables can cause voltage drops and lead to the terminals melting.
- Vertical Clearance: Install the unit at least 4 feet above the ground to ensure good air circulation and to prevent dust from the floor from being sucked into the vents.
- Technician Check: Since this unit uses a moving carbon brush, it is recommended to have an electrician open and dust the internal tracks every 2 years to ensure the brush moves freely.
Would you like us to check the availability of 10mm Copper Installation Cables for this unit, or do you need a larger A&E 10KVA Servo to power multiple Air Conditioners?
