Trade Price
£2,951.36
Per
1
Unit
EACH
Pack Quantity
1
Eaton Moeller series NZM - Molded Case Circuit Breaker. NZM3, 4 pole, Switching capacity 400/415 V 50 Hz( Icu ): 50 kA, IEC, Protection: Systems, cable, selectivity, generator
Product Length/Depth
335 mm
Product Height
215.2 mm
Product Width
185 mm
Product Weight
10.04 kg
Compliances
RoHS conform
Certifications
IEC/EN 60947
IEC
Rated operational current for specified heat dissipation (In)
400 A
10.11 Short-circuit rating
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 690 V, 50/60 Hz
5 kA
10.4 Clearances and creepage distances
Meets the product standard's requirements.
10.12 Electromagnetic compatibility
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
Mounting Method
Built-in device plug-in technique
Plug-in unit
Amperage Rating
400 A
10.2.5 Lifting
Does not apply, since the entire switchgear needs to be evaluated.
Terminal capacity (copper strip)
10 segments of 50 mm x 1 mm (2x) at rear-side width extension
Max. 8 segments of 24 mm x 1 mm (2x) at box terminal
Max. 10 segments of 32 mm x 1 mm + 5 segments of 32 mm x 1 mm at rear-side connection (punched)
Max. 10 segments of 24 mm x 1 mm + 5 segments of 24 mm x 1 mm
Min. 6 segments of 16 mm x 0.8 mm at rear-side connection (punched)
Min. 6 segments of 16 mm x 0.8 mm at box terminal
Handle type
Rocker lever
10.2.3.1 Verification of thermal stability of enclosures
Meets the product standard's requirements.
Ambient storage temperature - min
40 °C
Protection against direct contact
Finger and back-of-hand proof to DIN EN 50274/VDE 0106 part 110
Terminal capacity (copper busbar)
Max. 30 mm x 10 mm + 30 mm x 5 mm direct at switch rear-side connection
Min. 20 mm x 5 mm direct at switch rear-side connection
Max. 10 mm x 50 mm (2x) at rear-side width extension
M10 at rear-side screw connection
10.8 Connections for external conductors
Is the panel builder's responsibility.
Special features
Maximum back-up fuse, if the expected short-circuit currents at the installation location exceed the switching capacity of the circuit breaker (Rated short-circuit breaking capacity Icn)
R.m.s. value measurement and “thermal memory”
Adjustable time delay setting to overcome current peaks tr at 6 x Ir also infinity (without overload releases)
Adjustable delay time tsd
Rated current = rated uninterrupted current: 400 A
Terminal capacity hint: Up to 240 mm² can be connected depending on the cable manufacturer.
Ambient operating temperature - max
70 °C
Position of connection for main current circuit
Front side
Current rating of neutral conductor
200% of phase conductor
Rated insulation voltage (Ui)
1000 V AC
Climatic proofing
Damp heat, cyclic, to IEC 60068-2-30
Damp heat, constant, to IEC 60068-2-78
Terminal capacity (copper stranded conductor/cable)
25 mm² - 240 mm² (1x) direct at switch rear-side connection
35 mm² - 240 mm² (1x) at box terminal
16 mm² - 185 mm² (1x) at 1-hole tunnel terminal
25 mm² - 240 mm² (2x) direct at switch rear-side connection
25 mm² - 120 mm² (2x) at box terminal
Features
Protection unit
Motor drive optional
Lifespan, electrical
5000 operations at 400 V AC-1
3000 operations at 690 V AC-1
2000 operations at 415 V AC-3
2000 operations at 690 V AC-3
2000 operations at 400 V AC-3
5000 operations at 415 V AC-1
Electrical connection type of main circuit
Screw connection
Short-circuit total breaktime
< 10 ms
Rated impulse withstand voltage (Uimp) at main contacts
8000 V
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 400/415 V, 50/60 Hz
50 kA
10.9.3 Impulse withstand voltage
Is the panel builder's responsibility.
Utilization category
A (IEC/EN 60947-2)
Number of poles
Four-pole
Ambient operating temperature - min
-25 °C
10.6 Incorporation of switching devices and components
Does not apply, since the entire switchgear needs to be evaluated.
10.5 Protection against electric shock
Does not apply, since the entire switchgear needs to be evaluated.
Terminal capacity (control cable)
0.75 mm² - 2.5 mm² (1x)
0.75 mm² - 1.5 mm² (2x)
Equipment heat dissipation, current-dependent
72 W
Instantaneous current setting (Ii) - min
800 A
10.13 Mechanical function
The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
10.2.6 Mechanical impact
Does not apply, since the entire switchgear needs to be evaluated.
10.9.4 Testing of enclosures made of insulating material
Is the panel builder's responsibility.
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 230 V, 50/60 Hz
85 kA
Application
Use in unearthed supply systems at 690 V
10.3 Degree of protection of assemblies
Does not apply, since the entire switchgear needs to be evaluated.
Rated short-circuit making capacity Icm at 240 V, 50/60 Hz
187 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 440 V, 50/60 Hz
35 kA
Degree of protection (IP), front side
IP40 (with insulating surround)
IP66 (with door coupling rotary handle)
Rated short-circuit making capacity Icm at 525 V, 50/60 Hz
53 kA
Rated short-circuit making capacity Icm at 690 V, 50/60 Hz
40 kA
Instantaneous current setting (Ii) - max
4400 A
Overload current setting (Ir) - min
200 A
Short delay current setting (Isd) - min
400 A
Number of auxiliary contacts (normally closed contacts)
0
10.2.3.2 Verification of resistance of insulating materials to normal heat
Meets the product standard's requirements.
10.2.3.3 Resist. of insul. mat. to abnormal heat/fire by internal elect. effects
Meets the product standard's requirements.
Lifespan, mechanical
15000 operations
Overload current setting (Ir) - max
400 A
Voltage rating
690 V - 690 V
Terminal capacity (copper solid conductor/cable)
16 mm² (2x) at box terminal
16 mm² (1x) at tunnel terminal
16 mm² (2x) direct at switch rear-side connection
300 mm² (2x) at rear-side width extension
16 mm² (1x) direct at switch rear-side connection
Degree of protection (terminations)
IP00 (terminations, phase isolator and strip terminal)
IP10 (tunnel terminal)
Terminal capacity (aluminum stranded conductor/cable)
50 mm² - 240 mm² (2x) at 2-hole tunnel terminal
50 mm² - 240 mm² (1x) at 2-hole tunnel terminal
25 mm² - 185 mm² (1x) at tunnel terminal
10.9.2 Power-frequency electric strength
Is the panel builder's responsibility.
Degree of protection
IP20 (basic degree of protection, in the operating controls area)
IP20
Overvoltage category
III
Rated short-time withstand current (t = 1 s)
3.3 kA
Short delay current setting (Isd) - max
4000 A
Rated impulse withstand voltage (Uimp) at auxiliary contacts
6000 V
Number of auxiliary contacts (change-over contacts)
0
Rated short-time withstand current (t = 0.3 s)
3.3 kA
Accessories required
NZM3-XSVS
Ambient storage temperature - max
70 °C
Release system
Electronic release
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 525 V, 50/60 Hz
13 kA
Optional terminals
Box terminal. Connection on rear. Tunnel terminal
Pollution degree
3
10.7 Internal electrical circuits and connections
Is the panel builder's responsibility.
10.10 Temperature rise
The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
Functions
Systems, cable, selectivity and generator protection
Rated short-circuit making capacity Icm at 400/415 V, 50/60 Hz
105 kA
Standard terminals
Screw terminal
Type
Circuit breaker
10.2.2 Corrosion resistance
Meets the product standard's requirements.
10.2.4 Resistance to ultra-violet (UV) radiation
Meets the product standard's requirements.
10.2.7 Inscriptions
Meets the product standard's requirements.
Rated short-circuit making capacity Icm at 440 V, 50/60 Hz
74 kA
Number of auxiliary contacts (normally open contacts)
0
Isolation
300 V AC (between the auxiliary contacts)
500 V AC (between auxiliary contacts and main contacts)
Number of operations per hour - max
60
Circuit breaker frame type
NZM3
Direction of incoming supply
As required
Shock resistance
20 g (half-sinusoidal shock 20 ms)
Terminal capacity (aluminum solid conductor/cable)
16 mm² (1x) at tunnel terminal
Datasheet