Merlin MT600 Spécifications télécharger pdf (Page 53)

COMPACT

NS circuit breaker

E28287

Reflex tripping

All COMPACT

NS circuit breakers and switches incorporate the exclusive reflex

tripping system.

This extremely simple system breaks very high fault currents by mechanically

tripping the device via a "piston" actuated directly by the pressure produced in the

breaking units resulting from a short circuit.

For high short-circuit thermal withstand, this system provides a faster break.

Reflex tripping curves are exclusively a function of the circuit breaker rating.

Trip curves

COMPACT

NS circuit breaker: supplementary technical information

2 3 4 6 10 20 30 40 60 100 200

(ms)

NSJ600

NSJ400

NSF250

NSF150

TM70DP…TM250DP

TM15DP...TM60DP

I (kA RMS)

1 2 ... 48 49 50 51 52 53 54 55 56 57 58 ... 70 71

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Merlin MT600 Spécifications Page 53