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NZMN3-4-VE400-T-AVE
119902 NZMN3-4-VE400-T-AVE
119902

Circuit-breaker, 4p, 400A, withdrawable unitCircuit-breaker NZM3, 4 pole, Switching capacity 400/415 V 50 Hz( Icu ): 50 kA, Rated current = rated uninterrupted current Rated current = rated uninterrupted current( In = Iu ): 400 A, Installation type: Withdrawable, Screw connection, Standard/Approval: IEC, Protective function: Systems, cable, selectivity and generator protection

Circuit-breaker, 4p, 400A, withdrawable unit
Circuit-breaker NZM3, 4 pole, Switching capacity 400/415 V 50 Hz( Icu ): 50 kA, Rated current = rated uninterrupted current Rated current = rated uninterrupted current( In = Iu ): 400 A, Installation type: Withdrawable, Screw connection, Standard/Approval: IEC, Protective function: Systems, cable, selectivity and generator protection

Product range Circuit-breaker
Protective function Systems, cable, selectivity and generator protection
Earth-fault protection
Standard/Approval IEC
Installation type Withdrawable
Release system Electronic release
Construction size NZM3
Description R.m.s. value measurement and “thermal memory”
adjustable time delay setting to overcome current peaks tr: 2 – 14 s at 6 x Ir also infinity (without overload releases)
Adjustable delay time tsd: Steps: 0, 20, 60, 100, 200, 300, 500, 750, 1000 ms
i2t constant function: switchable
Earth-fault release: Not dependent on mains and control voltages
Ig = 0.35 - 0.4 - 0.5 - 0.6 - 0.7 - 0.8 - 0.9 - 1.0 x In
tg = 0 - 20 - 60 - 100 - 200 - 300 - 500 - 750 - 1000 ms
Number of poles 4 pole
Standard equipment Screw connection
400/415 V 50 Hz [Icu ] 50 kA
Rated current = rated uninterrupted current [In = Iu] 400 A
Neutral conductor [% of phase conductor] 100 CSA
Overload trip [Ir ]
200 - 400 A
Overload trip
>Main pole [Ir ]
200 - 400 A
Short-circuit releases [Irm ]
>Non-delayed [Ii = In x …]
200 - 400 A
Short-circuit releases [Irm ]
>Delayed [Isd = Ir x …]
2 - 11
Standards 2 - 10
Protection against direct contact IEC/EN 60947
Climatic proofing Finger and back of hand proof to VDE 0106 Part 100
Ambient temperature
>Ambient temperature, storage
Damp heat, constant, to IEC 60068-2-78
Damp heat, cyclic, to IEC 60068-2-30
Ambient temperature
>Operation
- 40 - + 70 °C
Mechanical shock resistance (10 ms half-sinusoidal shock) according to IEC 60068-2-27 -25 - +70 °C
Safe isolation to EN 61140
>Between auxiliary contacts and main contacts
20 (half-sinusoidal shock 20 ms) g
Safe isolation to EN 61140
>between the auxiliary contacts
500 V AC
Weight 300 V AC
Mounting position 8.4 kg
Direction of incoming supply
Vertical and 90° in all directions
  With XFI earth-fault release:
- NZM1, N1, NZM2, N2: vertical and 90° in all directions
with plug-in unit
- NZM1, N1, NZM2, N2: vertical, 90° right/left
with withdrawable unit:
- NZM3, N3: vertical, 90° right/left
- NZM4, N4: vertical
with remote operator:
- NZM2, N(S)2, NZM3, N(S)3, NZM4, N(S)4: vertical and 90° in all directions

Degree of protection
>Device
as required
Degree of protection
>Enclosures
In the operating controls area: IP20 (basic degree of protection)
Degree of protection
>Terminations
With insulating surround: IP40
With door coupling rotary handle: IP66
Other technical data (sheet catalogue) Tunnel terminal: IP10
Phase isolator and strip terminal: IP00
Rated current = rated uninterrupted current [In = Iu] Temperature dependency, Derating
Rated surge voltage invariability [Uimp ]
>Main contacts
400 A
Rated surge voltage invariability [Uimp ]
>Auxiliary contacts
8000 V
Rated operational voltage [Ue] 6000 V
Overvoltage category/pollution degree 690 V AC
Rated insulation voltage [Ui ] III/3
Use in unearthed supply systems 1000 V
Rated short-circuit making capacity [Icm ]
>240 V [Icm ]
≦ 690 V
Rated short-circuit making capacity [Icm ]
>400/415 V [Icm ]
187 kA
Rated short-circuit making capacity [Icm ]
>440 V 50/60 Hz [Icm ]
105 kA
Rated short-circuit making capacity [Icm ]
>525 V 50/60 Hz [Icm ]
74 kA
Rated short-circuit making capacity [Icm ]
>690 V 50/60 H [Ic]
53 kA
Rated short-circuit breaking capacity Icn [Icn ]
>Icu to IEC/EN 60947 test cycle O-t-CO [Icu]
>240 V 50/60 Hz [Icu ]
40 kA
Rated short-circuit breaking capacity Icn [Icn ]
>Icu to IEC/EN 60947 test cycle O-t-CO [Icu]
>400/415 V 50/60 Hz [Icu ]
85 kA
Rated short-circuit breaking capacity Icn [Icn ]
>Icu to IEC/EN 60947 test cycle O-t-CO [Icu]
>440 V 50/60 Hz [Icu ]
50 kA
Rated short-circuit breaking capacity Icn [Icn ]
>Icu to IEC/EN 60947 test cycle O-t-CO [Icu]
>525 V 50/60 Hz [Icu ]
35 kA
Rated short-circuit breaking capacity Icn [Icn ]
>Icu to IEC/EN 60947 test cycle O-t-CO [Icu]
>690 V 50/60 Hz [Icu ]
25 kA
Rated short-circuit breaking capacity Icn [Icn ]
>Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics]
>240 V 50/60 Hz [Ics ]
20 kA
Rated short-circuit breaking capacity Icn [Icn ]
>Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics]
>400/415 V 50/60 Hz [Ics ]
85 kA
Rated short-circuit breaking capacity Icn [Icn ]
>Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics]
>440 V 50/60 Hz [Ics ]
50 kA
Rated short-circuit breaking capacity Icn [Icn ]
>Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics]
>525 V 50/60 Hz [Ics ]
35 kA
Rated short-circuit breaking capacity Icn [Icn ]
>Ics to IEC/EN 60947 test cycle O-t-CO-t-CO [Ics]
>690 V 50/60 Hz [Ics]
13 kA
Rated short-circuit breaking capacity Icn [Icn ] 5 kA
Rated short-time withstand current
>t = 0.3 s [Icw ]
Maximum back-up fuse, if the expected short-circuit currents at the installation location exceed the switching capacity of the circuit-breaker.
Rated short-time withstand current
>t = 1 s [Icw ]
3.3 kA
Utilization category to IEC/EN 60947-2 3.3 kA
Lifespan, mechanical(of which max. 50 % trip by shunt/undervoltage release) [Operations] A
Lifespan, electrical
>AC-1
>400 V 50/60 Hz [Operations]
15000
Lifespan, electrical
>AC-1
>415 V 50/60 Hz [Operations]
5000
Lifespan, electrical
>AC-1
>690 V 50/60 Hz [Operations]
5000
Lifespan, electrical
>AC--3
>400 V 50/60 Hz [Operations]
3000
Lifespan, electrical
>AC--3
>415 V 50/60 Hz [Operations]
2000
Lifespan, electrical
>AC--3
>690 V 50/60 Hz [Operations]
2000
Lifespan, electrical
>Max. operating frequency
2000
Total break time at short-circuit 60 Ops/h
Standard equipment < 10 ms
Accessories required Screw connection
Optional accessories NZM3-4-XAVS
Round copper conductor
>Box terminal
>Solid
Box terminal
Tunnel terminal
connection on rear
Round copper conductor
>Box terminal
>Stranded
2 x 16 mm2
Round copper conductor
>Tunnel terminal
>Solid
1 x (35 - 240)
2 x (25-120) mm2
Round copper conductor
>Tunnel terminal
>Stranded
>1-hole
1 x 16 mm2
Round copper conductor
>Bolt terminal and rear-side connection
>Direct on the switch
>Solid
1 x (16 - 185) mm2
Round copper conductor
>Bolt terminal and rear-side connection
>Direct on the switch
>Stranded
1 x 16
2 x 16 mm2
Round copper conductor
>Bolt terminal and rear-side connection
>Connection width extension
>Connection width extension
1 x (25 - 240)
2 x (25 - 240) mm2
Al circular conductor
>Tunnel terminal
>Solid
2 x 300 mm2
Al circular conductor
>Tunnel terminal
>Stranded
>Stranded
1 x 16 mm2
Al circular conductor
>Tunnel terminal
>Stranded
>Double hole
1 x (25 - 185) 2) mm2
Al circular conductor
>Tunnel terminal
>Stranded
1 x (50 - 240)
2 x (50 - 240) mm2
Cu strip (number of segments x width x segment thickness)
>Box terminal [min.]
2) Up to 240 mm² can be connected depending on the cable manufacturer.
Cu strip (number of segments x width x segment thickness)
>Box terminal [max.]
6 x 16 x 0.8 mm
Cu strip (number of segments x width x segment thickness)
>Bolt terminal and rear-side connection
>Flat copper strip, with holes [min.]
10 x 24 x 1.0
+ 5 x 24 x 1.0
(2 x) 8 x 24 x 1.0 mm
Cu strip (number of segments x width x segment thickness)
>Bolt terminal and rear-side connection
>Flat copper strip, with holes [max.]
6 x 16 x 0.8 mm
Cu strip (number of segments x width x segment thickness)
>Bolt terminal and rear-side connection
>Connection width extension
10 x 32 x 1.0 + 5 x 32 x 1.0 mm
Copper busbar (width x thickness) [mm]
>Bolt terminal and rear-side connection
>Screw connection
(2 x) 10 x 50 x 1.0 mm
Copper busbar (width x thickness) [mm]
>Bolt terminal and rear-side connection
>Direct on the switch [min.]
M10
Copper busbar (width x thickness) [mm]
>Bolt terminal and rear-side connection
>Direct on the switch [max.]
20 x 5 mm
Copper busbar (width x thickness) [mm]
>Bolt terminal and rear-side connection
>Connection width extension
>Connection width extension [max.]
30 x 10
+ 30 x 5 mm
Control cables 2 x (10 x 50) mm
Rated operational current for specified heat dissipation [In] 1 x (0.75 - 2.5)
2 x (0.75 - 1.5) mm2
Equipment heat dissipation, current-dependent [Pvid] 400 A
Operating ambient temperature min. 72 W
Operating ambient temperature max. -25 °C
10.2 Strength of materials and parts
>10.2.2 Corrosion resistance
+70 °C
10.2 Strength of materials and parts
>10.2.3.1 Verification of thermal stability of enclosures
Meets the product standard´s requirements.
10.2 Strength of materials and parts
>10.2.3.2 Verification of resistance of insulating materials to normal heat
Meets the product standard´s requirements.
10.2 Strength of materials and parts
>10.2.3.3 Verification of resistance of insulating materials to abnormal heat and fire due to internal electric effects
Meets the product standard´s requirements.
10.2 Strength of materials and parts
>10.2.4 Resistance to ultra-violet (UV) radiation
Meets the product standard´s requirements.
10.2 Strength of materials and parts
>10.2.5 Lifting
Meets the product standard´s requirements.
10.2 Strength of materials and parts
>10.2.6 Mechanical impact
Does not apply, since the entire switchgear needs to be evaluated.
10.2 Strength of materials and parts
>10.2.7 Inscriptions
Does not apply, since the entire switchgear needs to be evaluated.
10.3 Degree of protection of ASSEMBLIES Meets the product standard´s requirements.
10.4 Clearances and creepage distances Does not apply, since the entire switchgear needs to be evaluated.
10.5 Protection against electric shock Meets the product standard´s requirements.
10.6 Incorporation of switching devices and components Does not apply, since the entire switchgear needs to be evaluated.
10.7 Internal electrical circuits and connections Does not apply, since the entire switchgear needs to be evaluated.
10.8 Connections for external conductors Is the panel builder´s responsibility.
10.9 Insulation properties
>10.9.2 Power-frequency electric strength
Is the panel builder´s responsibility.
10.9 Insulation properties
>10.9.3 Impulse withstand voltage
Is the panel builder´s responsibility.
10.9 Insulation properties
>10.9.4 Testing of enclosures made of insulating material
Is the panel builder´s responsibility.
10.10 Temperature rise Is the panel builder´s responsibility.
10.11 Short-circuit rating The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
10.12 Electromagnetic compatibility Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
10.13 Mechanical function Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Rated permanent current Iu The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
Rated voltage 400 A
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz 690 - 690 V
Overload release current setting 100 kA
Adjustment range short-term delayed short-circuit release 200 - 400 A
Adjustment range undelayed short-circuit release 400 - 4000 A
Integrated earth fault protection 800 - 4400 A
Type of electrical connection of main circuit Yes
Device construction Screw connection
Suitable for DIN rail (top hat rail) mounting Built-in device slide-in technique (withdrawable)
DIN rail (top hat rail) mounting optional No
Number of auxiliary contacts as normally closed contact No
Number of auxiliary contacts as normally open contact 0
Number of auxiliary contacts as change-over contact 0
With switched-off indicator 0
With under voltage release No
Number of poles No
Position of connection for main current circuit 4
Type of control element Front side
Complete device with protection unit Rocker lever
Motor drive integrated Yes
Motor drive optional No
Degree of protection (IP) Yes
Characteristic curve IP20
Characteristic curve 123U183
Characteristic curve 1230DIA-11
Characteristic curve Let-through current

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