⚡ Official Aulten Sizing Guide
Stabilizer Sizing & Load Calculator
Match your electrical equipment with the right KVA capacity to guarantee 100% protection against voltage surges and low-voltage blackouts.
📊 Quick Appliance Wattage & KVA Reference Guide
Why KVA is higher than running Watts: ACs and refrigerators contain motors with compressor startup surges (inrush current) that require 2x–3x running wattage for safe startup.
| Appliance / Setup | Typical Running Load | Starting Surge Load | Recommended Aulten Stabilizer |
|---|---|---|---|
| 1.5 Ton Inverter / Split AC | 1,500W – 1,800W | Up to 3,000W | Aulten 4 KVA (130V-280V) |
| 2.0 Ton Heavy AC | 2,200W – 2,500W | Up to 4,000W | Aulten 5 KVA (130V-280V) |
| 1 AC + Home Appliances (1BHK/2BHK) | 2,500W – 3,200W | Up to 4,000W | Aulten 5 KVA Mainline (70V-270V) |
| 2–3 ACs + Complete Home (3BHK/Villa) | 5,000W – 6,500W | Up to 8,000W | Aulten COPPER 10 KVA AD015 (90V-300V) |
| Refrigerator / Deep Freezer | 250W – 400W | Up to 800W | Aulten 2A (130V-290V) |
| Commercial & Industrial Load | 10,000W – 400,000W+ | Continuous Precision | Aulten Servo Corrector (10 KVA – 500 KVA) |
❓ Frequently Asked Questions About Sizing
Can I connect two 1.5 Ton ACs to one 5 KVA Mainline Stabilizer?
While a 5 KVA stabilizer can power 1 AC plus basic home appliances (fridge, TV, lights), running two 1.5 Ton ACs simultaneously requires at least 8 KVA to 10 KVA capacity. For 2 or more ACs, we strongly recommend our Aulten 10 KVA Heavy Duty Mainline Stabilizer to prevent overheating and circuit tripping.
What if my area has extreme low voltage below 90V?
Standard market stabilizers fail when input voltage drops below 130V. If your area experiences severe low voltage (as low as 60V–70V), choose Aulten's 50V–280V or 70V–270V Extreme Low Voltage models. These are specifically built with custom copper gear ratios to pull voltage back to a safe 220V–240V range.
Need custom engineering load consultation?
If you have complex multi-phase, industrial machinery, or unique residential load requirements, call our electrical engineering desk directly at +91-9811597709 or email 10@aulten.com for a free sizing assessment.