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Site Engineering Toolkit • Bureau of Indian Standards (IS 694 / IS 8783)

Contractor Engineering & Site Calculators

Prevent site generator trips, motor armature burnouts from voltage drops, and calculate exact per-cut abrasive economics for Tamil Nadu job sites.

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1. Select Tools Running on Generator

Motors draw 2.5× to 3.5× inrush current at startup. Toggle quantities to calculate total surge load.

4-Inch 850W Angle Grinder
Running: 850W • Surge: 2,550W (Inductive)
2
14-Inch 2400W Chop Saw
Running: 2,400W • Surge: 6,000W (Heavy Inrush)
1
26mm 850W SDS Rotary Hammer
Running: 850W • Surge: 2,125W (Impact Motor)
1
220A Inverter IGBT ARC Welder
Running: 4,500W • Surge: 5,500W (Arc Strike)
0
2000W Industrial Heat Gun
Running: 2,000W • Surge: 2,000W (Resistive)
0
Site Safety Buffer Margin: 20% Reserve
Recommended Genset Rating
7.5 kVA
Single-Phase (230V / 50Hz) Compatible
Total Running Load:
4,950 Watts
Peak Starting Surge:
8,550 Watts
Amperage Draw (230V):
21.5 Amps
Min. Breaker Rating:
32A C-Curve MCB

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18% GST Input Tax Credit

Official B2B invoices with CGST/SGST 33 for contractors, fabricators, and supermarkets.

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Corridor Express Dispatch

3-Hour site delivery in Peenya, Coimbatore SIDCO, Sriperumbudur, and Chennai hubs.

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