12 kVA Three Phase Servo Voltage Stabilizer
12 kVA 3-phase servo voltage stabilizer (415V ±1%) for workshops, 5 HP passenger lifts, CNC & printing machines. 100% copper wound. Factory-direct Delhi.
Core Features
- Step-less servo motor voltage correction
- Phase-to-phase high & low cut-off
- Over-load and short-circuit protection
- Fast response to voltage fluctuations
Technical Specifications
| Capacity | 12 kVA |
|---|---|
| Phases | Three Phase |
| Cooling | Air & Oil Cooled |
| Input Voltage | 170 – 280 Volts (P-N) / 300 – 480 Volts (P-P) |
| Output Voltage | 415V ±1% |
| Efficiency | > 98% |
| Warranty | 1 Year |
12 kVA Three Phase Stabilizer Sizing & Machinery Load Guide
Balanced three-phase power regulation ensures motor longevity and prevents phase-drop machine trips. The guide below details electrical capacity per phase and machinery load profiles for industrial and commercial users.
Nominal Rating
12 kVA
Three Phase (415V ±1%)
Concurrent Running Load
9,600 Watts
9.6 kW Total (3.2 kW / Phase)
Recommended Application
B2B Workshop
CNC, Lifts & Printing
Commercial & Industrial Machinery Sizing Breakdown
Balanced simultaneous running load across three phases (415V P-P / 230V P-N)
| Appliance / Machine Category | Typical Specification | Units | Wattage / Unit | Running Load |
|---|---|---|---|---|
| Elevator / Lift Drive | 3 HP to 5 HP Passenger Elevator Drive Motor | 1 | 3,700 W | 3,700 W |
| Precision Machinery | CNC Turning Center / Woodworking Router Spindle | 1 | 2,500 W | 2,500 W |
| Commercial Climate Control | Two 1.5 Ton 3-Phase Inverter Cassette ACs | 2 | 1,300 W | 2,600 W |
| Instrumentation & Lighting | Control Panels, Industrial LED Highbays & PC Consoles | Combined | 800 W | 800 W |
| Total Concurrent Connected Running Load | 9,600 W (9.6 kW) | |||
Small CNC Workshop & Prototyping Unit
Independent phase stabilization preventing VFD under-voltage alarms, tool chatter, and PLC resets on precision milling and lathe machines.
- One 3-axis CNC router with 3.5 kW spindle
- Rotary screw air compressor (2.2 kW)
- Extraction dust collector & shopfloor lighting (1,800 W)
- CAD/CAM workstations and control cabinet (1,000 W)
Commercial Building Passenger Lift & Common Services
Mainline three-phase regulation dedicated to residential/commercial passenger elevators and water pressurization booster pumps.
- 1x 5 HP VVVF-driven passenger elevator motor (3,700 W)
- 1x 3 HP Hydro-pneumatic water booster pump (2,200 W)
- Common area corridor lighting, CCTV console & access control (1,500 W)
- Basement ventilation blowers (1,400 W)
Frequently Asked Questions: 12 kVA Three Phase Stabilizer
What is a 12 kVA 3-phase servo stabilizer typically used for?
A 12 kVA three-phase servo stabilizer is engineered for small manufacturing workshops, CNC routers, automated printing machinery, 3-to-5 HP passenger elevator lifts, commercial kitchens, and diagnostic laboratories requiring balanced 415V ±1% voltage.
How much load current can a 12 kVA three phase stabilizer handle per phase?
At 415V three-phase with 230V phase-to-neutral, a 12 kVA stabilizer provides approximately 16.7 Amperes per phase continuous running capacity, delivering up to 3.2 kW balanced continuous load per phase.
Does the 12 kVA three-phase stabilizer balance unbalanced phases independently?
Yes. ServoKai 3-phase stabilizers use three separate motorized variacs and digital control cards—one per phase. Each phase is monitored and corrected independently, maintaining 230V Phase-to-Neutral and 415V Phase-to-Phase even under severe phase voltage imbalance.
Can a 12 kVA 3-phase servo stabilizer protect a 5 HP lift or elevator motor?
Yes. A 5 HP motor draws approximately 3.7 kW under full running load. When coupled with standard VVVF variable frequency drives, the starting inrush current is well within the 12 kVA stabilizer's high instantaneous overload capacity.
What is the factory price of a 12 kVA 3-phase servo stabilizer in Delhi NCR?
A 100% copper-wound 12 kVA 3-phase servo stabilizer factory price ranges from ₹42,000 to ₹65,000 depending on cooling type (air-cooled vs oil-cooled) and input voltage range. Call +91 8383001512 for factory-direct dispatch.