Spec-Grade Electrical Supply — With the Tools You Actually Use
Technical specs, sizing calculators, cable schedules, and spec-grade materials from Anchor, Altech, Polycab, Finolex, and Legrand. Use our free MCB rating tool and wire size calculator — then order exactly what the spec says, delivered to your Chennai site.
6A / 10A / 16A / 20A / 25A / 32A / 40A / 63A — B vs C curve, SP vs DP, with load examples.
Use tool →1 sqmm / 1.5 / 2.5 / 4 / 6 / 10 sqmm — current rating, voltage drop, recommended MCB.
Use tool →Request a cable schedule for your DB layout. We share a ready reference in 30 minutes.
Request on WhatsApp →MCB-RCCB-DB sizing for residential/commercial panels. Share load sheet.
Ask engineer →Spec-grade brands & ranges
-
✓
Anchor MCBs & DBs
6A–63A, B/C/D curve, SP/DP/TP. 2-year warranty. IS/IEC certified.
-
✓
Altech Switchgear
Value option with wide range. 1-year warranty. IS certified.
-
✓
Polycab / Finolex / Orbit wires
FR, FRLS, HRFR, solar DC cable — full range in all sqmm sizes.
-
✓
Legrand / Sefix
Premium modular and switchgear for spec-driven commercial projects.
Specced a product? Order it here
Paste your material list or spec sheet. We'll confirm stock, pricing, and delivery timeline.
We reply within 15 minutes during working hours.
Quick reference: MCB rating by load
| Circuit | Wire | MCB | Curve |
|---|---|---|---|
| Lighting (LEDs, fans) | 1.5 sqmm | 6 A | B-curve |
| 5-pin sockets, general | 2.5 sqmm | 16 A | C-curve |
| 1.5 Ton AC | 4 sqmm | 25 A | C-curve |
| Geyser / oven | 4 sqmm | 20–25 A | C-curve |
| Main incomer (2BHK) | 6–10 sqmm | 40 A RCCB + 63 A isolator | — |
Full reference: How to choose MCB rating for home
Technical resources
Need a specific spec confirmed?
Share the product code or technical datasheet. We confirm compatibility and availability.