We manufacture Air Cooled Voltage Stabilizer upto 300 KVA and Oil Cooled Stabilizers upto 1000 KVA. They are equipped with state of the art feedback control system to continuously monitor and correct the input voltage to provide constant output voltage. Our feature rich range of Servo Stabilizers are our most popular and cost-efficient offerings. Suitable for 95% of all applications,These Stabilizers guards against voltage fluctuations, protects against common harmful high-energy surges, transients and voltage spikes. We also have Models available in a wide Voltage range Correction. With independent phase control as standard on all three phase ranges, the voltage on each phase will always remain stable irrespective of load unbalance, even in situations where a 100%load imbalance may exist.Designed and built to comply with leading IS 985 standards they are offered with unparalleled technology.

Since 1980

Three Phase Servo Controlled voltage stabilizer


Call 022-2854-9057 |022-2854-6555| 976944-9057

standard features of Three Phase Voltage Stabilizer

  • True KVA Rating
  • Wide Input Voltage Range
  • Over Load Short Circuit Protection
  • LED Indications
  • Under Volt/ Over Volt Trip
  • Adjustable Output Voltage +/- 5 V

Innovative features of Mech Three Phase Servo Voltage Stabilizer

  • Modular Circuit Design Vs. Single Circuit, which improves MTTR and also reduces Spares Cost.
  • Faulty Neutral Mitigation with Specialized device for Cutoff
  • Faulty Neutral protection with Specialized Transformer for Continuous running of Equipment with Mitigation and Correction.
  • Data Logging and remote Monitoring of Voltage, Frequency, Ampere and Power Factor.
  • Type 2 Surge Protection using high-capacity varistor for VAL-MS base element,  and Transient correction using RFI / EMI  Filter. MOV type Surge / Spike suppressor are cheap solution, which we provide for free.

General specification for Three phase air cooled Servo voltage stabilizer

General Specification for Three Phase Servo Stabilizer
Available Capacities 3 KVA, 5 KVA, 6 KVA, 7.5 KVA, 10 KVA, 12.5 KVA, 15 KVA, 20 KVA, 25 KVA, 30 KVA, 40 KVA, 50 KVA, 60 KVA, 75 KVA, 100 KVA, 125 KVA, 150 KVA, 200 KVA, 250 KVA, 300 KVA, 400 KVA, 500 KVA, 600 KVA 750 KVA 850 KIVA 1000 KVA
Motorized Heaby Duty Synchronous AC Motorized , DC Motorized
Input Voltage Range ( P-P )360 - 470 V, 340 - 470V, 320 - 470V, 295 - 470V, 360 - 510V, 340 - 500V  Other Voltage Range can be made as per request
Output Voltage (P-P)415 +/- 1% , 400 +/- 1% , 380 +/- 1% , Specialized 220 +/- 1%
Standard Protection Under Volt / Over Volt Trip Protection, Over Load Short circuit protection using MCCB, Single Phasing Prevention, 
Standard FeaturesAutostart using Relay / Contactors, Auto / manual Mode, LED Indications for fault determination and functioning, Voltage Adjustment from front, DG Compatibility, Nill Waveform Distortion, 
Additional featuresTime Delay, Digital VAF Meter, Surge Protection, RFI /EMI Filter, Specialized Output Terminations