Differential

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In this section you will find a wide range of automatic, differential, detection devices, and security (limiter surge, motion detectors...), automatic programmable (automatic ladder, timers...) at the best price and the best brands.

FAQ

Frequently asked questions

RCDs / residual current

What is an RCD?

Trips on earth leakage — it does not replace MCB overload protection.

30 mA or 300 mA?

30 mA typical for people protection; 300 mA for specific selectivity/fire roles.

2P or 4P?

Match single- or three-phase board.

Type A/AC/B?

Depends on leakage waveform — follow the design.

Brands?

Mostly Schneider, also Hager.

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