Stabimatic Vanguard-20 3PH, 4Wire, AVR Automatic Voltage Regulator

The latest Stabimatic Vanguard-20 3PH, 4Wire, AVR Automatic Voltage Regulator price in Pakistan is Rs. 251,790/- updated on October 20, 2026.

The Stabimatic Vanguard-20 is a three phase, 4-wire automatic voltage regulator for commercial and industrial loads. Each phase has its own servo motor and pure copper transformer, so the unit holds a 380V / 220V output across a wide 190V to 450V input, and a digital display shows voltage and current on every phase.

Key Features

• Three phase, 4-wire design
• Independent servo motor control on each of the three phases
• 99.99% pure copper transformers on all three phases
• Wide input tolerance of -50% / +20% (190V to 450V AC)
• 380V AC and 220V AC outputs
• Digital display of input and output voltage and current for each phase, with load and overload indication
• Built-in surge protection
• Short circuit and missing-phase protection with alarm
• Cut-off when voltage goes beyond the working range
• Manual bypass

Applications

Industrial and commercial installations.

Stabimatic Vanguard-20 Price in Pakistan

Check the latest Stabimatic Vanguard-20 price in Pakistan on this page and order this 3 phase voltage stabilizer online from Roshanex. You can also browse more Stabimatic products and other voltage stabilizers.

Frequently Asked Questions

What is the input voltage range of the Stabimatic Vanguard-20?
It accepts a three phase input from 190V to 450V AC, a tolerance of -50% / +20%.

What output voltages does it give?
Both 380V AC and 220V AC outputs are available.

What protection does the Stabimatic Vanguard-20 have?
Surge, short circuit and missing-phase protection with an alarm, plus cut-off when a phase output goes above 246V or below 184V.

Does it have a bypass?
Yes, it has a manual bypass.

Documents:

Stabimatic Vanguard-20 3PH, 4Wire, AVR Automatic Voltage Regulator Data Sheet.pdf