Written and reviewed by the SG Power technical team at SG Power Products Pvt. Ltd. | Last updated: 4 November 2026
Among 20 kVA servo stabilizer manufacturers in India, SG Power Products Pvt. Ltd. makes the three-phase 20 kVA air cooled servo stabilizer in its own Ghaziabad factory. Each unit holds the output within ±1% when the mains rises or falls. It safely runs about 12.8 kW of connected load.
As 20 kVA servo stabilizer suppliers in Noida, we sell direct, not through traders. A 20 kVA unit sits between our 15 kVA and 25 kVA models, for sites whose load is too large for 15 kVA but does not need 25 kVA. Homeowners, clinics, offices, workshops and contractors across India buy from us at factory prices, for residential, commercial and light industrial sites.
In short, SG Power's 20 kVA servo stabilizer is a three-phase, air cooled KNEUTRON model from its catalogue. It gives 410V ±1% phase-to-phase output at 97% efficiency, carries about 27.8 A per phase, and safely runs about 12.8 kW. It suits clean, ventilated indoor rooms across India.
| Brand | KNEUTRON, made by SG Power Products Pvt. Ltd. in India |
| Capacity | 20 kVA (16 kW at 0.8 power factor) |
| Safe running load | About 12.8 kW, with a 25% margin |
| Phase | Three phase |
| Current | About 27.8 A per phase at 415V |
| Cooling | Air cooled |
| Output | 410V ±1% phase to phase and 230V ±1% phase to neutral, 97% efficiency tested to IS 2026 (Part 1), 100% load continuously (SG Power datasheet) |
| Model | 20 kVA Air Cooled, 170–280V per phase (SG Power datasheet); custom input ranges on request |
| Price | Price on request |
| Supply | Across India, from Noida and the Ghaziabad factory; service in 127+ cities |
* Prices are indicative. For the latest price, contact SG Power.
Source: SG Power product catalogue (February 2026), the KNEUTRON servo stabilizer catalogue and SG Power's 20 kVA air cooled datasheets. Load and current figures are calculated at 415V and a 0.8 power factor. Checked November 2026.
Buy your 20 kVA servo stabilizer direct from SG Power, the manufacturer that designs each unit, winds its transformers and tests it before dispatch. We can also set its input range and design to suit your site. You also get factory pricing and free sizing from your load list.
| From SG Power (Manufacturer) | From a Trader or Reseller |
|---|---|
| Factory pricing, no middleman margin | Reseller margin added |
| 20 kVA built to your load and site voltage | Stock model, whatever is available |
| Sizing by the team that builds the unit | Advice varies by seller |
| Transformers and variacs wound and tested in-house | Source of parts often unknown |
| Every unit tested through 173 checkpoints | Testing depends on the source |
| Service network in 127+ cities | Depends on the reseller |
A 20 kVA servo stabilizer is an automatic voltage regulator rated to carry 20 kilovolt-amperes of load while holding the output steady through voltage fluctuation. A microcontroller senses the voltage, and a motor-driven variac (a variable autotransformer) and buck-boost transformer add or remove volts. SG Power's 20 kVA unit is three phase and air cooled.
It is also called a 20 kVA servo voltage stabilizer, a 20 kVA servo controlled voltage stabilizer or a 20 kVA 3 phase servo stabilizer. Other names are a 20 kVA automatic voltage regulator (AVR) or simply a 20kva stabilizer. Some buyers spell it servo stabiliser. Each of the three phases has its own variac, buck-boost transformer and stepper motor. In an unbalanced design, each phase is corrected on its own. To see how the correction works step by step, read how a servo stabilizer works.
A 20 kVA servo stabilizer runs about 16 kW at full rating, at a 0.8 power factor. For daily use, keep the running load to about 12.8 kW, so a 25% margin covers motor starting current. Each phase then carries up to about 4.3 kW, and the unit draws about 27.8 A per phase.
| Figure | 20 kVA Three Phase |
|---|---|
| Full rating | 20 kVA, or about 16 kW at 0.8 power factor |
| Safe running load (25% margin) | About 12.8 kW |
| Running load per phase | About 4.3 kW |
| Full-load current | About 27.8 A per phase at 415V |
| Fits running loads from | About 10 kW to 12.8 kW |
Safe running load = 20 kVA × 0.8 power factor ÷ 1.25. Current = 20,000 ÷ (1.732 × 415).
Typical loads a 20 kVA unit can carry, within about 12.8 kW in total:
Large three-phase home or villa: up to about six 1.5 ton ACs spread across the phases, with a fridge, lights, fans, a TV and a 1 HP pump
Clinic or diagnostic centre: X-ray, lab analysers, computers and split ACs
Office floor or showroom: computers, servers, lighting and four to six split ACs
Workshop: one mid-size CNC lathe, or one 10 HP motor with lighting and small machines
Small cold room, bakery or printing press: compressors and machines that run together
To check whether 20 kVA is the right size, add the kW of every load that runs at the same time and divide by a 0.8 power factor. Then add a 25% margin and choose the next size up. A 20 kVA unit fits a running load of about 10 kW to 12.8 kW.
List the running load: add the kW of the machines, ACs and appliances that run together.
Convert kW to kVA: divide by 0.8.
Add a 25% margin: multiply by 1.25 for starting current and growth.
Choose the size: if the result is between 15 and 20 kVA, choose 20 kVA; above 20 kVA, choose 25 kVA.
Formula: Required kVA = running load (kW) ÷ 0.8 × 1.25
For example, a 12 kW running load needs 12 ÷ 0.8 × 1.25, or 18.75 kVA, so a 20 kVA servo stabilizer fits.
Not sure which size fits? Send your load list, and we'll check it free.
Choose 15 kVA for running loads up to about 9.6 kW, 20 kVA for about 10 to 12.8 kW, and 25 kVA for up to about 16 kW. All three are SG Power catalogue models. The 20 kVA unit fits loads that fall between 15 kVA and 25 kVA.
| 15 kVA | 20 kVA | 25 kVA | |
|---|---|---|---|
| Safe running load | About 9.6 kW | About 12.8 kW | About 16 kW |
| Current per phase (415V) | About 21 A | About 28 A | About 35 A |
| Phase | Single or three phase | Three phase | Three phase |
| Cooling in SG Power's range | Air | Air | Air or oil |
| Catalogue input band | 170–280V per phase | 170–280V per phase | 170–280V per phase |
When to choose 25 kVA instead: pick 25 kVA if you plan to add machines or ACs within two years. It is also the better choice for large direct-on-line motors, or when a dusty or hot room needs oil cooling. The extra headroom costs little compared with replacing an undersized unit later.
The 20 kVA servo stabilizer price depends on the input range, balanced or unbalanced design, protections and extras. Every 20 kVA unit is priced on request after a free load check. You get a written quote for the exact model, with GST, freight and installation shown separately.
| SG Power Model | Phase | Price |
|---|---|---|
| 20 kVA air cooled | Three phase | Price on request |
| 15 kVA air cooled | Single or three phase | Price on request |
| 25 kVA air cooled | Three phase | Price on request |
GST, freight and installation are shown separately in the quote. * Prices are indicative. For the latest price, contact SG Power.
When you compare a 20 kVA stabilizer price across sellers, check that every quote is for a three-phase servo unit with the same input range and design.
Online 20 kVA prices vary widely because sellers list very different products under the same rating. Some are single-phase appliance stabilizers, others are three-phase servo units with narrow or wide input ranges. Compare the full specification, not the headline price, before you decide.
| What Differs Between Listings | Why It Matters |
|---|---|
| Single phase or three phase | A three-phase unit has three sets of variac, transformer and motor |
| Input voltage range | A wider range needs a larger transformer |
| Balanced or unbalanced design | Unbalanced units correct each phase separately |
| Regulation and efficiency | ±1% regulation and the efficiency figure, 97% tested to IS 2026 (Part 1), should be stated in writing |
| Protections and time delay | Single phasing, phase reversal and overload cut-offs protect motors |
| Testing and service | Routine testing and local service affect long-term cost |
| GST, freight and installation | Some prices leave these out |
Want a 20 kVA servo stabilizer price for your site? Share your load and lowest voltage, and we'll send a written quote.
A 20 kVA single phase servo stabilizer would draw about 87 A at 230V, which is more than most single-phase home connections are designed to carry. That is why SG Power builds its 20 kVA unit as three phase. For single-phase sites, the 15 kVA unit is our largest standard single-phase model.
Three-phase supply: choose the 20 kVA three-phase unit, balanced or unbalanced. See all 3 phase stabilizers.
Single-phase supply, load up to about 9.6 kW: choose the 15 kVA single-phase unit.
Single-phase supply, heavier load: ask your electricity board about a three-phase connection, then choose a three-phase stabilizer. The Electricity (Rights of Consumers) Rules, 2020 set out how consumers apply for a new connection or a change in sanctioned load.
SG Power's 20 kVA air cooled datasheet gives an input range of 170–280V per phase, which is 340–480V phase to phase, and holds the output at 410V ±1% phase to phase. Wider custom ranges are made to order for low-voltage areas.
| Model | Input Band per Phase | Phase to Phase | Choose This When |
|---|---|---|---|
| 20 kVA Air Cooled | 170–280V | 340–480V | Voltage falls in the evening or at the end of a long line, but rarely below 170V |
| Custom range | On request | On request | Your lowest recorded voltage is below 170V on any phase |
Many online listings quote “90–300V” ranges. Those are single-phase appliance or mainline stabilizers, not three-phase servo units. Record your lowest and highest voltage on each phase for a few days, and share the readings when you ask for a quote.
Choose a balanced 20 kVA servo stabilizer when three-phase motors and machines load each phase equally. Choose an unbalanced servo stabilizer design when homes, clinics or offices have ACs and lights spread unevenly across the phases. SG Power makes the 20 kVA unit in both designs.
| Design | How It Corrects | Best For |
|---|---|---|
| Balanced | Corrects all three phases together | CNC machines, motors and production lines |
| Unbalanced | Corrects each phase on its own | Homes, villas, clinics, offices and showrooms with single-phase loads |
In an unbalanced home, size on the most heavily loaded phase. Each phase of a 20 kVA unit carries up to about 6.7 kVA, or about 4.3 kW with the 25% margin.
SG Power's 20 kVA servo stabilizer specifications follow its KNEUTRON air cooled range, with the guaranteed figures taken from the 20 kVA datasheet. The unit regulates the output within ±1% at 97% efficiency, with an adjustable output delay of 3 to 200 seconds. Any other input range can be built to customer specification to suit the site.
| Parameter | Specification |
|---|---|
| Rated capacity | 20 kVA, three phase |
| Input voltage | 340–480V phase to phase, 170–280V phase to neutral (SG Power datasheet); custom ranges on request |
| Output voltage | 410V ±1% phase to phase and 230V ±1% phase to neutral (SG Power datasheet); set point adjustable to 380, 400 or 415V |
| Full-load current | About 27.8 A per phase at 415V |
| Regulation | ±1% |
| Efficiency | 97%, tested as per IS 2026 (Part 1):1977 (SG Power datasheet) |
| Output frequency | 50 Hz ±3% |
| Output delay | 3–200 seconds, adjustable |
| Control | KNEUTRON microcontroller with a high sampling rate; true RMS sensing of input and output without a control transformer |
| Motor | High-efficiency, high-torque AC stepper motor |
| Transformers | Dimmer (variac) and buck-boost transformers rated for 100% load current; wound and tested in-house on grain-oriented silicon steel for low iron and no-load losses; built to IS 9815 (Part 1), IS 5142 and IS 2026 |
| Winding | Pure copper winding (SG Power datasheet) |
| Cooling | Air cooled |
| Housing | Powder coated CRC sheet, floor mounting (SG Power datasheet) |
| Insulation resistance | 7 mega-ohms at 500 V DC, at not more than 45°C (SG Power datasheet) |
| Leakage current | 32 micro-amperes under normal operating conditions, tested as per IS 302-1:1979 (SG Power datasheet) |
| Design | Balanced or unbalanced |
| Duty | 100% load, continuous |
| Test certification | NABL tested (SG Power datasheet) |
| Applicable standard | IS 9815 (Part 1)-1984 (SG Power datasheet) |
| Catalogue model | 20 kVA Air Cooled, 170–280V per phase |
| Country of manufacture | Made in India, at SG Power's Ghaziabad factory |
The rows marked “SG Power datasheet” are the guaranteed technical particulars from SG Power's 20 kVA air cooled datasheets. Other values come from the KNEUTRON servo stabilizer catalogue. Features and specifications may change as the technology is improved, so the final values are confirmed in our quotation. The IS standards are published by the Bureau of Indian Standards.
Every SG Power 20 kVA servo stabilizer is a microcontroller-based digital servo stabilizer, with a KNEUTRON controller, a front-panel display and ±1% regulation. Its protections cut off the output on over-voltage, under-voltage, overload, phase reversal and single phasing, with an adjustable time delay. Calibration is done on a touchpad.
The display shows phase-to-neutral and phase-to-phase voltage, frequency and the output current of each phase. Start, Stop and Menu keypads sit on the front panel. You can set the output voltage and input band, and choose manual or automatic start and stop.
| Protection | What It Guards Against |
|---|---|
| Over-voltage cut-off | High mains voltage reaching machines and appliances |
| Under-voltage cut-off | Very low voltage that overheats motors and compressors |
| Overload cut-off | Load above the set limit; the output restarts once the load is reduced and Start is pressed |
| Output delay (3–200 seconds) | Compressor and motor damage when power returns after a cut |
| Trip time delay (variable settings) | Nuisance tripping on very short voltage swings |
| Phase reversal cut-off | Wrong phase sequence, which can run motors backwards |
| Single phasing protection | Loss of one phase, which can burn out three-phase motors |
Need a 20 kVA servo stabilizer with a custom input range? We build it to your site conditions.
At 20 kVA, SG Power builds the unit as an air cooled servo stabilizer, which suits a clean, dry and ventilated indoor room. If your site is dusty or hot, or runs heavy loads round the clock, choose the 25 kVA oil cooled model instead. Oil cooling handles harsher rooms and continuous duty better.
| Site | Recommended |
|---|---|
| Clean, ventilated electrical room, home, clinic or office | 20 kVA air cooled |
| Dusty workshop, cement or flour mill area | 25 kVA oil cooled |
| Hot room near a DG set, boiler or furnace | 25 kVA oil cooled |
| 24×7 heavy load close to the rating | 25 kVA oil cooled |
For a full comparison, see SG Power's air cooled servo stabilizers and oil cooled servo stabilizers.
A 20 kVA servo stabilizer is used where the load is too big for 15 kVA but well under 25 kVA. It protects homes, clinics, offices and small industrial workshops from high and low voltage, voltage dips during motor starts, and damage to compressors, electronics and CNC controls.
| Application | What It Protects |
|---|---|
| Large homes and villas (three phase) | Several inverter ACs, fridge, TV, lift, pump and lighting |
| Clinics, nursing homes and diagnostic centres | X-ray, lab analysers, computers and ACs; pair with an isolation transformer for sensitive medical equipment |
| Offices, banks and showrooms | Computers, servers, lighting and split ACs |
| Workshops | A mid-size CNC lathe, VMC or small machines |
| Cold storage rooms and bakeries | Compressors, oven controls and mixers |
| Water bottling plants | Filling, capping and RO machines |
| Lifts and SCADA-based systems | Lift controllers and automation panels |
| Printing and packaging | Printing presses and sealing machines |
| Schools, labs and research centres | Computer labs, scientific and medical equipment |
| Telecom, IT and textile units | Telecom equipment, server rooms and textile machines |
A 20 kVA stabilizer for home use suits a large three-phase house or villa with five or six ACs, a pump and a lift or heavy kitchen load. Most single-phase homes need 10 or 15 kVA instead. Keep geysers on a separate circuit, and choose an unbalanced design for homes.
Have a qualified electrician install the 20 kVA servo stabilizer on the mainline, after the meter or DG changeover and before the distribution board. Connect it to a proper earthing system, keep the vents clean and book a yearly maintenance service. Simple checks keep it accurate.
Size the cables and breaker for about 28 A per phase, allowing for higher input current at low voltage
Connect the body to the building's earthing system, with earthing rods, earthing clamps and an earth pit cover
Fit surge protection devices ahead of the stabilizer, and lightning protection where needed; a stabilizer does not stop lightning spikes
Connect any UPS or inverter after the stabilizer, never before it
Place it indoors with clear space around the vents, away from sun, rain, dust and steam
Use the bypass switch only during servicing
| Task | How Often | Who |
|---|---|---|
| Check input and output readings | Weekly | User |
| Clean dust from vents and fans | Every 3 months | User or electrician |
| Check for loose connections and heating marks | Every 6 months | Electrician |
| Inspect carbon brushes | Yearly, or if correction slows | Trained technician |
| Full service and calibration | Yearly, or under an AMC | SG Power service |
For wiring and placement in detail, see the servo stabilizer installation guide.
Indian homeowners and electricians on TechEnclave, Team-BHP and HiFiVision share clear lessons about 20 kVA and other whole-house three-phase stabilizers. Measure your real voltage and load first, leave headroom rather than running at 100%, and keep geysers off the stabilized line. Choose a supplier with quick local service.
| Common Concern on Forums | What to Do |
|---|---|
| A large home's load works out to about 20 kVA | Forum users advise sizing with headroom, so the unit does not run at 100% all day; if your load is near 12.8 kW, choose 25 kVA |
| One home runs five ACs, usually three at a time, on a 15 kVA servo | Count only the ACs that run together; 20 kVA suits about six ACs running together |
| Three-phase or single-phase servo for a whole house? | Ask how the unit behaves if one phase fails; SG Power units cut off the output and restart after a delay |
| Separate stabilizers for every appliance feel wasteful (Reddit, r/bangalore) | Split the light and power lines, keep the oven and geyser off the stabilizer, and protect the rest with one mainline unit sized for the running load |
| A line fault or lightning damaged appliances | Fit surge protection ahead of the stabilizer; no stabilizer can stop high-voltage faults |
| Voltage differs from phase to phase, so some homeowners fit three single-phase stabilizers | An unbalanced 20 kVA three-phase unit corrects each phase on its own, in one cabinet, with single phasing protection for three-phase motors |
| One phase reads about 190V by day and about 150V at night | Log each phase with a multimeter for several days, including nights, and choose a custom input range if the lowest reading falls below the standard band |
| An inverter is expected to stabilize the voltage | Most home inverters only switch to battery at extreme voltages; they do not regulate, so the stabilizer still goes before the inverter |
Forum threads checked November 2026. Prices and brand names from the threads are not used here.
Facing low voltage or frequent trips at your site? Share your readings and load list, and we'll size the unit.
To choose between 20 kVA servo stabilizer manufacturers and suppliers, first confirm that the unit suits your load, phase, room and lowest site voltage. Then compare regulation, efficiency, protections, in-house manufacturing, testing and local service. Ask every seller the same questions, in writing.
Do you manufacture the 20 kVA unit, or resell another company's model?
Is it three phase, and what input range does it cover?
Is it balanced or unbalanced?
What regulation and efficiency does it give, in writing?
Which protections and time delay are included?
Are the transformers and variacs made and tested in-house?
Are GST, freight, installation and a bypass switch included?
Who services the unit near my site?
Manufacturers of 20 kVA servo stabilizers design the unit, wind its transformers and variacs, and assemble and test it in their own factory. Suppliers, dealers and traders buy finished units and resell them. SG Power is both, so you deal with the maker directly, including for custom input ranges and designs.
For more on choosing a maker, read about automatic servo voltage stabilizer manufacturers in India.
Buying a 20 kVA servo stabilizer from SG Power takes five steps, from sharing your load details to installation. Our team checks the size, recommends the input range and design, and sends a written quote. The unit is then built and tested in our Ghaziabad factory before dispatch.
Share your details: load list, phase, lowest and highest site voltage, room conditions and location.
Get sizing and a quote: we confirm whether 20 kVA or 25 kVA suits you, and send a written quote.
Confirm the order: approve the specification and the quote.
Manufacturing and testing: the unit is manufactured and tested in our Ghaziabad factory.
Dispatch and installation: the unit is sent to your site, with installation support on request.
Ready to start? Send your load list today.
Buyers choose SG Power among 20 kVA servo stabilizer manufacturers because it has built power products for 15+ years, winds its transformers in-house and tests every unit before dispatch. Its catalogue includes in-between sizes such as 20 kVA, in balanced and unbalanced designs, with service in 127+ cities.
| Why SG Power | Detail |
|---|---|
| Experience | 15+ years of manufacturing electrical and power products |
| Factory | 7,000 sq m in Ghaziabad, 84 machines, 250+ employees |
| Quality checks | 100% of units tested; a 3-level quality check covering 173 checkpoints |
| Certifications | ISO 9001:2015 certified organisation; RoHS certificate covering servo stabilizers; MSME and SSI registered |
| Customers | 5,937+ customers in 319+ cities; after-sales service network in 127+ cities |
| Retention | 89% customer retention and 93% dealer retention, with 1,319 dealers |
| Range | 10 kVA to 500 kVA (air cooled from 10 kVA to 50 kVA, oil cooled from 75 kVA to 500 kVA) |
| Full range | Air cooled 10–50 kVA, including 20, 30 and 40 kVA models, and oil cooled up to 500 kVA |
| Other products | Transformers, earthing and lightning protection |
The servo stabilizer design has been tested at an NABL-accredited laboratory, and SG Power is an ISO 9001:2015 certified organisation. See the full range on our servo voltage stabilizer page, compare air cooled, oil cooled and 3 phase stabilizer models, or learn more about SG Power.
SG Power's servo stabilizers, earthing, lightning protection and other electrical products are supplied to government bodies, PSUs and well-known companies across India. These buyers include power utilities, metro and railway projects, defence units and large manufacturers. The organisations below appear with purchase orders in SG Power's catalogue:
| Sector | Organisations |
|---|---|
| Power and utilities | POWERGRID, NTPC, BHEL, NPCL, Adani, Reliance Power |
| Infrastructure and metro | L&T, Alstom, Indian Railways, Tata (smart city project), Welspun |
| Defence and government | DRDO, Indian Army, Indian Air Force, BSF, Ministry of Defence, Airports Authority of India |
| Industry, telecom and corporate | Hindalco, JK Cement, Jubilant, Bhushan Power, BSNL |
Project Location - Karnataka
Power infrastructure project with advanced electrical solutions.
Project Location - Kanheri Hills
Defence sector electrical and protection systems.
Project Location - Hyderabad
Airport infrastructure and electrical safety solutions.
Project Location - Pune
Metro rail electrical installations and grounding systems.
Project Location - Ajmer
State electricity distribution network solutions.
Project Location - Jodhpur
Power distribution and earthing solutions.
Project Location - Bangalore, Noida
Heavy electrical and industrial power systems.
Project Location - Odisha
Steel industry electrical infrastructure solutions.
Project Location - Nashik, Chhattisgarh
Defence-grade electrical protection systems.
Project Location - Lucknow, Jabalpur
Telecom infrastructure and grounding systems.
Project Location - Ghaziabad
Government electronics and power systems.
Project Location - Sambalpur
Aluminium industry electrical safety solutions.
Project Location - Srinagar
Military-grade electrical infrastructure.
Project Location - Kerala
Railway electrification and protection systems.
Project Location - Rajasthan
Cement industry electrical solutions.
Project Location - Haryana
State power distribution infrastructure.
Project Location - Noida
Industrial electrical and safety systems.
Project Location - Khavda, Bikaner
Large-scale construction and power projects.
Project Location - Noida
Private electricity distribution systems.
Project Location - Chhattisgarh
Thermal power plant electrical solutions.
Project Location - Shahjahanpur
Power generation and infrastructure systems.
Project Location - Gurugram
Aviation electrical infrastructure solutions.
Project Location - Noida
Smart city electrical and infrastructure systems.
SG Power Products Pvt. Ltd. is rated 4.2 out of 5 from 133 buyer ratings on IndiaMART (checked 4 November 2026). Its Noida office is rated 4.4 out of 5 from 78 Google reviews (checked October 2026). On IndiaMART, 83% of buyers report overall satisfaction, and SG Power scores 86% for response.
| Source | Rating or Score | Based On |
|---|---|---|
| IndiaMART | 4.2 out of 5 | 133 buyer ratings |
| IndiaMART user satisfaction | 83% | IndiaMART buyer feedback |
| IndiaMART response score | 86% | IndiaMART buyer feedback |
| Google (Noida office) | 4.4 out of 5 | 78 reviews |
The ratings cover all SG Power products, not 20 kVA servo stabilizers alone. Recent IndiaMART reviews come from buyers of three-phase servo controlled voltage stabilizers, earthing electrodes, lightning arresters, trefoil clamps and rectifiers.
SG Power also lists a 20 kVA servo voltage stabilizer on its IndiaMART catalogue, so buyers can see the model and ask questions there too.
Read SG Power reviews on IndiaMARTSG Power Products Pvt. Ltd. is among the 20 kVA servo stabilizer manufacturers and suppliers in Sector 62, Noida, with its own factory in Ghaziabad. It supplies and services 20 kVA units across Delhi NCR, Uttar Pradesh and the rest of India. Buyers in Delhi, Noida and Gurugram get local sizing and service.
Looking for 20 kVA servo stabilizer suppliers in Delhi NCR, a 20 kVA servo stabilizer in Noida or 20 kVA servo stabilizer manufacturers near me? Our Sector 62 office and Ghaziabad factory serve the whole NCR, including Greater Noida, Sahibabad, Okhla, Faridabad and Gurugram. We also supply customers in 319+ cities, including Noida, Delhi, Gurugram, Ghaziabad, Lucknow, Jaipur, Ahmedabad, Mumbai, Pune, Hyderabad, Bengaluru and Chennai.
SG Power Products Pvt. Ltd.
17th Floor, L-17-1714B, The Iconic Corenthum, Plot No. A-41, Sector 62, Noida, Gautam Buddha Nagar, Uttar Pradesh 201309
Phone: +91-8929722150 · Email: enquiry@sgpower.co.in · Contact page
Want a 20 kVA servo stabilizer delivered to your site? Ask for a quote, and we'll confirm the model and price.
These are the main facts about SG Power's 20 kVA servo stabilizer, in short form for quick reference:
What it is: a three-phase, air cooled servo voltage stabilizer rated 20 kVA, listed in SG Power's catalogue.
Load: about 16 kW at full rating; keep the running load to about 12.8 kW.
Current: about 27.8 A per phase at 415V.
Output: 410V ±1% phase to phase, 230V ±1% phase to neutral, 97% efficiency tested to IS 2026 (Part 1), 100% load continuously.
Input: 170–280V per phase, or 340–480V phase to phase; custom ranges on request.
Fits: running loads of about 10 to 12.8 kW; above that, choose 25 kVA.
Price: on request, after a free load check.
Ratings: 4.2 out of 5 from 133 buyer ratings on IndiaMART, and 4.4 out of 5 from 78 Google reviews.
Maker and supplier: SG Power Products Pvt. Ltd., Noida, one of the 20 kVA servo stabilizer manufacturers and suppliers in India, with its own factory in Ghaziabad.
* Prices are indicative. For the latest price, contact SG Power.
* Prices are indicative. For the latest price, contact SG Power.
For the latest factory price, contact SG Power, direct 20 kVA servo stabilizer suppliers, with your load list, phase, room conditions and lowest site voltage. We'll confirm whether 20 kVA or 25 kVA suits your site, build the unit for your site and support it after installation.
The specifications on this page come from SG Power's product catalogue (February 2026), its KNEUTRON servo stabilizer catalogue and its 20 kVA air cooled datasheets, checked in November 2026. Load and current figures are calculated at 415V and a 0.8 power factor. Final values are confirmed in our quotation.
SG Power Products Pvt. Ltd., product catalogue (February 2026): range, features, transformers, quality checks, certifications and clients
SG Power KNEUTRON servo stabilizer catalogue: input bands, output voltage, regulation, efficiency, output delay and protections
Bureau of Indian Standards: IS 9815 (Part 1), IS 5142, IS 2026 and IS 12615
Voltage regulator, Wikipedia: background on electromechanical voltage regulators
Autotransformer, Wikipedia: background on the variac (variable autotransformer)
Indian user forums (checked November 2026): TechEnclave, HiFiVision and Team-BHP threads on whole-house and three-phase servo stabilizers