14 / 148
4
Compliance with standards
Compact NS circuit breakers and auxiliaries comply with the following:
international recommendations:
b
IEC 60947-1 - general rules
v
IEC 60947-2 - circuit breakers
v
IEC 60947-3 - switches, disconnectors, switch-disconnectors, etc.
v
IEC 60947-4 - contactors and motor starters
v
IEC 60947-5.1 and following - control circuit devices and switching elements;
v
automatic control components
European (EN 60947-1 and EN 60947-2) and the corresponding national
b
standards:
France NF
v
Germany VDE
v
U.K. BS
v
Australia AS
v
Italy CEI
v
the specifications of the marine classification companies (Veritas, Lloyd’s Register
b
of Shipping, Det Norske Veritas, etc.)
French standard NF C 79-130 and the recommendations issued by the CNOMO
b
organisation for the protection of machine tools.
For U.S. UL, Canadian CSA, Mexican NOM and Japanese JIS standards, please
consult us.
Pollution degree
Compact NS circuit breakers are certified for operation in pollution-degree 3
environments as defined by IEC standard 60947 (industrial environments).
Tropicalisation
Compact NS circuit breakers have successfully passed the tests prescribed by the
following standards for extreme atmospheric conditions:
IEC 60068-2-1 - dry cold (-55 °C)
b
IEC 60068-2-2 - dry heat (+85 °C)
b
IEC 60068-2-30 - damp heat (95 % relative humidity at 55 °C)
b
IEC 60068-2-52 - salt mist (severity level 2).
b
Environmental protection
Compact NS circuit breakers take into account important concerns for environmental
protection. Most components are recyclable and the parts of Compact NS630b to
NS3200 circuit breakers are marked as specified in applicable standards.
Ambient temperature
Compact NS circuit breakers may be used between -25 °C and +70 °C.
b
For temperatures higher than 40 °C (65 °C for circuit breakers used to protect motor
feeders), devices must be derated as indicated in the documentation.
circuit-breakers should be put into service under normal ambient operating-
b
temperature conditions. Exceptionally, the circuit breaker may be put into service
when the ambient temperature is between -35 °C and -25 °C.
the permissible storage-temperature range for Compact NS circuit breakers in the
original packing is -50 °C
(1)
to +85 °C.
Discrimination
As standard, the Compact NS range ensures discrimination between two circuit
breakers positioned in series in an installation.
Introduction
General characteristics
for NS630b to 3200 range
(1)
-40 °C for Micrologic control units with an LCD screen.
Standardised characteristics indicated on the rating plate:
Ui:
rated insulation voltage
Uimp:
rated impulse withstand voltage
Icu:
ultimate breaking capacity, for various values
of the rated operational voltage Ue
cat:
utilisation category
Icw:
rated short-time withstand current
Ics:
service breaking capacity
In:
rated current
suitable for isolation
DB401560
IEC 60947-2
UTE VDE
BS CEI
UNE AS
NEMA
Ui
800 V
Uimp
8 kV
Icw
19.2kA / 1s
cat B
NS630b H
Ue
(V)
Compact
Icu
(kA)
Ics
(kA)
220/240
a
70 35
380/415
a
70 35
440
a
65 32
500/525
a
50 25
660/690
a
42 21
50/60Hz
DB128013
CB2
CB1
Presentation