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D curve circuit-breaker
4P - 400 V

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USE

The NB1 magneto thermal switches, D curve, are used as protection, to control and for the sectioning of electric motors.
They protect against over-currents or short-circuits.
Agricultural, tertiary sector and industrial uses.
See this product in our catalogue
Number of poles : 1 to 4.
Curve: D.
Nominal intensity (A) : 6 ... 63.
Nominal voltage Ue ( Vac) : 230/400.
Max. operating voltage Umax (Vac) : 440.
Insulation voltage Ui (Vac) : 500.
Nominal frequency HZ : 50-60.
Breaking capacity Icn KA : 6-10.
Max. number of manoeuvres: 10 000.
Protection level : IP20.
Limitation class: 3.
Alimentation sup/inf. : oui.
Accessory : yes.
Section cable maxi. : 25 mm².
CEI EN 60898.
GB 10963 - 91.
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