Schneider Power Products - Compact NS

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B-9
Compact NS630b to 1600
Version Fixed device
N L LB
R/pole P/pole R/pole P/pole R/pole P/pole
NS630b 0.026 10 0.039 15 0.056 15
NS800 0.026 15 0.039 20 0.056 20
NS1000 0.026 22 0.039 34
NS1250 0.026 44
NS1600 0.026 74
Version Withdrawable device
N L LB
R/pole P/pole R/pole P/pole R/pole P/pole
NS630b 0.038 19 0.072 34 0.086 34
NS800 0.038 30 0.072 40 0.086 40
NS1000 0.038 50 0.072 77
NS1250 0.036 84
NS1600 0.036 154
Compact NS1600b to 3200
Version Fixed device
N
R/pole P/pole
NS1600b 0.019 84
NS2000 0.013 84
NS2500 0.008 100
NS3200 0.008 227
Power dissipation / Resistance
Compact NS devices equipped
with electronic trip units
The values indicated in the tables opposite are
typical values.
Power dissipated per pole (P/pole) in Watts (W)
The value indicated in the table is the power
dissipated at IN, 50/60 Hz, for a three-pole or four-
pole circuit breaker (these values can be higher than
the power calculated on the basis of the pole
resistance). Measurement and calculation of the
dissipated power are carried out in compliance with
the recommendations of Annex G of standard
IEC 60947-2.
Resistance per pole (R/pole) in milliohms (mΩ)
The value of the resistance per pole is provided as
a general indication for a new device.
The value of the contact resistance must be
determined on the basis of the measured voltage
drop, in accordance with the manufacturer’s test
procedure (expert card ABT no. FE 05e).
Note: this measurement is not sufficient to determine
the quality of the contacts, i.e. the capacity of the circuit
breaker to carry its rated current.
Installation
recommendations