Electrical Export Guides
Short, practical notes on the decisions that go wrong most often — trip curves, breaking capacity, residual-current types, coil frequency and certificates.
Surge Protective Devices: Type 1, Type 2 and Type 3 Explained
Type 1 for lightning current at the entrance, Type 2 for surges at the board, Type 3 near sensitive loads — and how Uc depends on…
Read more →How to Verify an Authorised CHINT Distributor: A Buyer’s Checklist
An authorisation certificate proves who may sell the brand — not that a given carton is genuine. Here is what to ask for, and what to…
Read more →IEC 60898-1 vs IEC 60947-2: Why the Same 32 A Breaker Has Two Certificates
60898-1 covers modular household MCBs to 63 A with Icn; 60947-2 covers industrial breakers with Icu / Ics / Icw and category A or B. Where…
Read more →RCCB Type AC vs Type A vs Type F vs Type B: Which Residual Current Do You Need?
A residual current device only trips on the waveforms it was tested for. Type AC / A / F / B coverage, why a saturating core…
Read more →6 kA vs 10 kA MCB Breaking Capacity: Which One Your Board Actually Needs
Breaking capacity is the prospective fault current a breaker survives - voltage-dependent and unrelated to trip speed. Real board locations for 6 kA, the 10 kA…
Read more →Contactor Coil Voltage and 50 Hz vs 60 Hz: Which One Burns the Coil
Coil impedance is 2πfL, so frequency decides whether a contactor latches or burns. Published coil voltages for CJX2 / NXC / NC1 / NC2, the 60…
Read more →MCB Trip Curve B, C or D: What the Letter Actually Decides
The ampere rating protects the cable; the letter protects you against switch-on surge. Curve bands, the 1.13 / 1.45 In thermal conventions, why some datasheets say…
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