Buy MuscleGrid servo voltage stabilizers direct — 2 kVA to 30 kVA, single and three phase, air and oil cooled. 140V–270V input held to 230V ±1%. Built to order in India. Every unit is wound and tested at our own factory, sold direct with a GST invoice and backed by our service team — not a reseller.
42 models in stock to build · 2 kVA to 30 kVA · single & three phase
Oil-immersed windings shed heat far better than air, so these hold rated load continuously in hot weather and in dusty industrial air. The choice for long duty cycles.
Three phase 400V servo stabilizers for factories, cold storage, lifts, CNC and farm pump sets. Independent phase correction across a 240V–470V input swing.
The premium line. Copper windings conduct better than aluminium, so the unit runs cooler, wastes less energy as heat and carries motor starting surges better at the same rating.
Copper-wound three phase servo stabilizers for the heaviest continuous plant loads, where every percent of efficiency and every degree of winding temperature matters.
±1% outputMotorised servo correction, not relay steps — steady 230V or 400V.
Toroidal woundRuns cooler and quieter than a laminated EI core, and weighs less.
140V–270V inputSingle phase. Three phase covers 240V–470V. Wider bands built to order.
Built to order7 day handling before dispatch. Every unit tested before it leaves.
Direct from the makerNo dealer margin, GST invoice, and our own service team behind it.
Nationwide freightSurface freight to your pin code, insured, with tracking.
Oil cooled models ship without transformer oil. Oil is heavy and restricted in transit, and it is inexpensive and available in every electrical market — your electrician fills it during installation. Product images are for reference only; cabinet finish and layout vary by build batch.
Questions
What is the difference between a servo stabilizer and a normal stabilizer?
A normal relay stabilizer jumps between fixed taps, so the output moves in steps of 10–15 volts. A servo stabilizer drives a motorised variable transformer and holds the output continuously within about ±1%. For motors, CNC, medical and lab equipment that difference matters.
Air cooled or oil cooled — which should I buy?
Air cooled is right for homes, shops and intermittent loads up to about 15 kVA. Choose oil cooled if the unit will run near full load for hours, sits in a hot or dusty room, or is above 15 kVA. Oil cooled runs cooler and lasts longer under continuous duty.
Is transformer oil included with oil cooled models?
No. Transformer oil is not shipped with the unit — it is heavy and classed as hazardous for transport. It is cheap and available in every electrical market; your electrician fills it at installation.
How long does delivery take?
Every servo is built to order, so handling time is 7 days before dispatch. Transit is usually 3–7 days more depending on your pin code. Larger units move by surface freight.
Do you install it?
Installation is done by a local electrician — it is a straightforward mains connection. Our engineers guide your electrician free of charge over a video call, and we support the unit for the full warranty period.
What input range do these cover?
Single phase units correct a 140V–270V input to 230V ±1%. Three phase units correct 240V–470V to 400V ±1%. Wider input bands can be built to order — send us your site voltage readings and we will quote.
