Product DescriptionGeneralYCW3 series air circuit
breaker(hereinafter called ACB) is suitable for the circuit of AC
50Hz/60Hz with rated service voltage 400V, 690V and rated service
current between 200A and 6300A. It is mainly used to
distribute electric energy and protect circuits and electric
equipment against over-load, under-voltage, short-circuit and
single phase earthing fault.With intelligent and selective
protection functions, the breaker can improve the reliability of
power supply, and avoid unnecessary power failure. The breaker
is applicable for power stations, factories, mines(for 690V) and
modern high-buildings, especially for the distribution system of
intelligentized building.Standard: IEC/EN 60947-2.
1.Rated current in scope of frame size 1600 Type In:
200A,400A,630A,800A,1000A,1250A,1600A 2000 Type In:
630A,800A,1000A,1250A,1600A,2000A 3200 Type In: 2000A,2500A,3200A
4000 Type In: 2500A,3200A,4000A 6300 Type In: 4000A,5000A,6300A
2.Number of poles 3-default 4-4 pole 3.Installation Fixed
type-horizontal, vertical Drawout type-horizontal, vertical
4.Intelligent controller M type 2M type: digital display,
over-current protection (overload, short delay, instantaneous), 4P
or 3P+N have earthing protection. 3M type: LCD display,
over-current protection(overload, short delay, instantaneous), 4P
or 3P+N have earthing protection. H type 2H type: communication
function, digital display, over-current protection (overload, short
delay, instantaneous), 4P or 3P+N have earthing protection. 3H
type: communication function, LCD display, over-current protection
(overload, short delay, instantaneous), 4P or 3P+N have earthing
protection. 5.Common use accessory Shunt
release-AC220V/230V,AC380V/400V,DC220V,DC110V Undervoltage
release-AC220V/230V,AC380V/400V, it is classified to instantaneous
type and time-delay type. Closing
electromagnet-AC220V/230V,AC380V/400V,DC220V,DC110V Motor-driven
energy-storage mechanism-AC220V/230V,AC380V/400V,DC220V,DC110V
Auxiliary contact-4a4b,2a6b,3a3b Note: a-normal open, b-normal
close 6.Optional accessory Mechanical interlock; One circuit
breaker (1lock+1key) Two circuit breaker(steel cable interlock,
connecting rod interlock,2lock+1key) Three circuit
breaker(3lock+2keys, connecting rod interlock) Automatic power
transfer system Current transformer connected with neutral lead
Operating conditions ItemDescriptionAmbient
temperature-5ºC~+40ºC;the average value within 24h shall not
exceed+35ºC;Ltype and M type controller can be
used under -40ºC~+70ºCAltitude≤2000mPollution
grade3Safety categoryMain circuit and undervoltage tripping
coil is IV,other auxiliary and
control circuit is IIInstallation positionVertical
installed, inclination between the mounting plane and the
vertical planeshould not
exceed±5° ItemDescriptionNumber of
Poles34 Rated voltage Ue(V)400/415,660/690Rated
insulation voltage Ui(V)1000Rated impulse withstand voltage
Uimp(kV)12Rated frequency(Hz)50/60Have function of switch
disconnector Frame size rated current
Rated current In(A)16002000320040006300Rated ultimate
short circuitbreaking capacity
Icu(kA)400/415V6580100120135660/690V50658585100Rated service short
circuitbreaking capacity
Ics(kA)400/415V556580100135660/690V42657085100Rated short time
withstandcurrent
Icw.1s(kA)400/415V506580100135660/690V42657085100Rated short
circuit makingand breaking capacity
lcm(kA)400/415V110176220264297660/690V77143154187220Electric life80008000800060001500Mechanical
life (Maintenance)300003000020000200005000Mechanical life
(Non-maintenance)200001500012500100002500Dimension(mm) W×H×LDrawout
type3P285×345×351375×451×432435×486×439435×486×439930×486×4394P352×345×351470×451×432550×486×439550×486×439/Fixed
type3P254×251×320362×362×395426×378×395426×378×395/4P324×251×320457×362×395537×378×395537×378×395/Note:
6300A only has 3P drawout type.Product Catalog Company
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