Voltage Stabilizers · Made for Bihar's Grid

Voltage stabilizers that don't flinch.

VoltGuard's digital automatic voltage stabilizers hold a steady output through the voltage swings common across Bihar — protecting your air conditioner's compressor from the surges that shorten its life.

130–280Vworking range (4-130AC)
ISO 9001certified company
GST + Udyamregistered business
100%units computer-tested
Grid input — unfilteredVoltGuard output
Stabilized within milliseconds
⚡

Microprocessor controlled

Digital correction logic instead of a basic relay-only design.

🛡️

High-low cut off

Disconnects the load automatically outside the safe working range.

⏱️

Time delay relay

Protects your compressor from rapid on-off power cycling.

📟

Digital display

See the live output voltage on the unit itself.

What we make

Digital automatic voltage stabilizers, built for Indian homes.

Four models today — sized for air conditioners, LED TV & set-top box, refrigerators, and a wide-range 90–300V digital unit — with the working range and protection features that Bihar's power conditions actually call for.

4 KVA VoltGuard 4-130AC

4-130AC (Air Conditioner)

For split & window ACs up to 1.5 ton, with a time-delay relay for the compressor.

  • Working range130–280V
Table Top VoltGuard for LED TV and Set-Top Box

LED TV & Set-Top Box

Compact table-top stabilizer with spike & surge protection for one TV and set-top box.

  • Working range90–280V
Digital VoltGuard refrigerator stabilizer

Refrigerator

Dedicated stabilizer for single & double-door refrigerators, with a live voltage display.

  • DisplayDigital readout
90–300V VoltGuard wide-range digital stabilizer

Wide-Range Digital Stabilizer

Slim digital unit with a live voltage display, built for wide supply swings.

  • Input / Output90–300V / 220V
View full spec sheets
Why VoltGuard

An ISO 9001 certified, registered manufacturer — not just a badge on a box.

VoltGuard is manufactured by M/s S M Enterprises, a GST and Udyam registered enterprise. Every unit is microprocessor controlled with high-low cut off and computerised testing before it's packed.

See our quality process
What we checkStatus
ISO 9001 certificationCertified
GST registration10FVNPM3741R1Z0
Udyam registrationUDYAM-BR-13-0047934
Pre-dispatch testingEvery unit, computerised
Where we operate

Headquartered in Gopalganj — building out dealers across Bihar & UP.

Gopalganj Siwan Chapra (Saran) Muzaffarpur Motihari (E. Champaran) Bettiah (W. Champaran) Patna Sitamarhi Deoria KushiNagar Gorakhpur More districts — on request

Want to stock VoltGuard in your shop?

Dealer margins, marketing support and district-level exclusivity are available in select areas.

Apply to become a dealer