- Rilsopower
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- SJW Series
● Servo Voltage Stabilizer · Three-Phase
The SJW Series. Servo-grade three-phase regulation, built to last.
Accepts 260–490V AC input and delivers a steady 380V output across all three phases, protecting your home, office, factory, or data centre around the clock.
±2%
100%
260–490v
SJW Series
Three-phase servo precision for Nigerian power.
The SJW combines servo motor control with a toroidal transformer and pure copper coils, delivering reliable, stepless three-phase voltage stabilization across the full range of Nigerian grid conditions.
01
260–490V Wide Input
Handles the full spread of Nigerian three-phase supply instability. Whether your incoming voltage sags to 260V at peak demand or surges to 490V off-peak, the SJW regulates it continuously to 380V — without manual intervention.
02
Stepless Servo Motor Control
A servo motor and toroidal transformer system eliminates the discrete relay steps that cause micro-interruptions. Correction is smooth and seamless — critical for sensitive equipment like inverters, CNC machines, and medical devices.
03
100% Copper Windings & Premium Carbon Brush
Every SJW uses 100% copper regulator coils paired with high-quality 1017 carbon brushes — delivering superior conductivity, lower heat generation, and a longer service life than aluminium alternatives. Built to run continuously in industrial environments.
04
Intelligent Digital Display Meter
The digital panel shows real-time input voltage, output voltage, and system status. At a glance, operators can verify the stabilizer is actively protecting the load — no external monitoring required.
05
Multi-Layer Protection Suite
The SJW guards against high/low voltage, under-voltage, lack of phase, overload, overcurrent, and short circuit, with electronic detection, MCB cutoff, and a built-in AC surge arrestor. Every threat is covered.
06
Three Capacity Models
Available in 30, 50, and 100 kVA configurations. Whether you’re protecting an office building, a factory floor, a telecom site, or a large commercial complex, there’s an SJW sized to your load.
Pure copper. No compromises.
We refuse aluminium imitations. Every SBW transformer is wound with 100% copper — the gold standard for conductivity, heat resistance, and decades of reliable service under heavy industrial loads.
The full specification.
Available in 30, 50, and 100 kVA. Custom configurations on request.
90%
Capacity-specific specifications
Model | Power | Weight | Dimensions (L×B×H) |
SJW-30 kVA | 30,000 VA / 30,000 W | 105 kg | 620 × 450 × 770 mm |
SJW-50 kVA | 50,000 VA / 50,000 W | 160 kg | 650 × 650 × 1,170 mm |
SJW-100 kVA | 100,000 VA / 100,000 W | 235 kg | 730 × 730 × 1,310 mm |
Every industry. Every load.
From home appliances to heavy industrial equipment , the SJW Series protects whatever is connected to your three-phase supply.
Home Appliances
ACs, fridges, washing machines, TVs, home theatre, decoders, fans, microwaves.
Office Equipment
Computers, printers, photocopiers, desktops, servers, CCTV networks.
Telecom & Data
BTS towers, server rooms, data centers and critical network infrastructure.
Order the SJW today.
Our engineers will assess your three-phase load and recommend the right SJW capacity. Delivery and installation available nationwide — contact us for pricing.