Product name
Eaton Moeller series NZM switch-disconnector
Product Length/Depth
401 millimetre
Product height
207 millimetre
Product width
280 millimetre
Product weight
22 kilogram
Certifications
IEC/EN 60947
IEC
Product Type
Switch-disconnector
Application
Use in unearthed supply systems at 525 V
Circuit breaker frame type
N4
Features
Version as maintenance-/service switch
Version as emergency stop installation
Motor drive optional
Version as main switch
Special features
Main switch characteristics including positive drive to IEC/EN 60204 and VDE 0113.
Isolating characteristics to IEC/EN 60947-3 and VDE 0660.
Busbar tag shroud to VDE 0160 Part 100.
Rated current = rated uninterrupted current: 1250 A
Technical Data - Electrical
Voltage rating
690 V - 690 V
Rated operating voltage (Ue) at AC - max
690 V
Rated insulation voltage (Ui)
1000 V
Rated impulse withstand voltage (Uimp) at auxiliary contacts
6000 V
Rated impulse withstand voltage (Uimp) at main contacts
8000 V
Rated conditional short-circuit current (Iq)
0 kA
Rated operational current
1600 A (690 V AC-22/23A, making and breaking capacity)
1600 A (415 V AC-22/23A, making and breaking capacity)
Rated permanent current at AC-21, 400 V
0 A
Rated permanent current at AC-23, 400 V
0 A
Rated conditional short-circuit current with back-up fuse
80 kA at 690 V
N4-630…1600: 2 x 800 AgGgL
100 kA at 400/415 V
Rated conditional short-circuit current with downstream fuse
N4-630…1600: 2 x 800 AgGgL
100 kA at 400/415 V
80 kA at 690 V
Rated short-time withstand current (Icw)
25 kA
Rated short-time withstand current (t = 0.3 s)
25 kA
Rated short-time withstand current (t = 1 s)
25 kA
Rated operating frequency
50 Hz
Rated short-circuit making capacity Icm at 690 V, 50/60 Hz
53 kA
Rated operating power at AC-3, 400 V
0 kW
Rated operating power at AC-23, 400 V
710 kW
Switching power at 400 V
0 kW
Short-circuit protective device fuses - max
1600 A gL
Electrical connection type of main circuit
Bolt connection
Isolation
300 V AC (between the auxiliary contacts)
500 V AC (between auxiliary contacts and main contacts)
Number of operations per hour - max
60
Lifespan, electrical
3000 operations at 400 V AC-1
3000 operations at 415 V AC-1
2000 operations at 400 V AC-3
2000 operations at 690 V AC-1
1000 operations at 690 V AC-3
2000 operations at 415 V AC-3
Direction of incoming supply
As required
Technical Data - Mechanical
Mounting Method
Intermediate mounting
Fixed
Built-in device fixed built-in technique
Ground mounting
Distribution board installation
Degree of protection
IP20 (basic protection type, in the area of the HMI devices)
Other
Degree of protection (IP), front side
IP20
IP40 (with insulating surround)
IP66 (with door coupling rotary handle)
Degree of protection (terminations)
IP10 (tunnel terminal)
IP00 (terminations, phase isolator and band terminal)
Protection against direct contact
Finger and back-of-hand proof to DIN EN 50274/VDE 0106 part 263
Shock resistance
15 g (half-sinusoidal shock 11 ms)
Number of auxiliary contacts (change-over contacts)
0
Number of auxiliary contacts (normally closed contacts)
0
Number of auxiliary contacts (normally open contacts)
0
Climatic proofing
Damp heat, cyclic, to IEC 60068-2-30
Damp heat, constant, to IEC 60068-2-78
Special features
Main switch characteristics including positive drive to IEC/EN 60204 and VDE 0113.
Isolating characteristics to IEC/EN 60947-3 and VDE 0660.
Busbar tag shroud to VDE 0160 Part 100.
Rated current = rated uninterrupted current: 1250 A
Lifespan, mechanical
10000 operations
Technical Data - Mechanical - Terminals
Standard terminals
Screw terminal
Optional terminals
Connection on rear. Strip terminal. Tunnel terminal
Terminal capacity (aluminum solid conductor/cable)
240 mm² (2x) at rear-side width extension
70 mm² - 240 mm² (6x) at rear-side width extension
Terminal capacity (aluminum stranded conductor/cable)
50 mm² - 240 mm² (4x) at 4-hole tunnel terminal
Terminal capacity (copper busbar)
Min. 25 mm x 5 mm direct at switch rear-side connection
Min. 60 mm x 10 mm at rear-side width extension
Max. 80 mm x 10 mm (2x) at rear-side width extension
M10 at rear-side screw connection
Max. 50 mm x 10 mm (2x) direct at switch rear-side connection
Max. 50 mm x 10 mm (2x) at rear-side 1-hole module plate
50 mm x 10 mm (2x) at rear-side 2-hole module plate
Min. 25 mm x 5 mm at rear-side 1-hole module plate
Terminal capacity (copper solid conductor/cable)
95 mm² - 240 mm² (6x) at rear-side width extension
70 mm² - 185 mm² (2x) at rear-side 1-hole module plate
300 mm² (4x) at rear-side width extension
50 mm² (4x) at rear-side 2-hole module plate
50 mm² - 240 mm² (4x) at 4-hole tunnel terminal
185 mm² - 240 mm² (1x) at rear-side 1-hole module plate
35 mm² - 185 mm² (4x) at rear-side 2-hole module plate
Terminal capacity (copper stranded conductor/cable)
120 mm² - 185 mm² (1x) direct at switch rear-side connection
50 mm² - 185 mm² (4x) direct at switch rear-side connection
Terminal capacity (copper strip)
Max. 10 segments of 50 mm x 1 mm (2x) at rear-side connection (punched)
Min. 10 segments of 50 mm x 1 mm (2x) at rear-side connection (punched)
Max. 10 segments of 32 mm x 1 mm (2x) at flat conductor terminal
10 segments of 50 mm x 1 mm (2x) at 1-hole module plate
Min. 6 segments of 16 mm x 0.8 mm at flat conductor terminal
10 segments of 80 mm x 1 mm (2x) at rear-side width extension
Design verification as per IEC/EN 61439 - technical data
Rated operational current for specified heat dissipation (In)
1250 A
Equipment heat dissipation, current-dependent
173 W
Ambient operating temperature - min
-25 °C
Ambient operating temperature - max
70 °C
Ambient storage temperature - min
40 °C
Ambient storage temperature - max
70 °C
Design verification as per IEC/EN 61439
10.2.2 Corrosion resistance
Meets the product standard's requirements.
10.2.3.1 Verification of thermal stability of enclosures
Meets the product standard's requirements.
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.
10.2.4 Resistance to ultra-violet (UV) radiation
Meets the product standard's requirements.
10.2.5 Lifting
Does not apply, since the entire switchgear needs to be evaluated.
10.2.6 Mechanical impact
Does not apply, since the entire switchgear needs to be evaluated.
10.2.7 Inscriptions
Meets the product standard's requirements.
10.3 Degree of protection of assemblies
Does not apply, since the entire switchgear needs to be evaluated.
10.4 Clearances and creepage distances
Meets the product standard's requirements.
10.5 Protection against electric shock
Does not apply, since the entire switchgear needs to be evaluated.
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
Is the panel builder's responsibility.
10.8 Connections for external conductors
Is the panel builder's responsibility.
10.9.2 Power-frequency electric strength
Is the panel builder's responsibility.
10.9.3 Impulse withstand voltage
Is the panel builder's responsibility.
10.9.4 Testing of enclosures made of insulating material
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.
10.11 Short-circuit rating
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
10.12 Electromagnetic compatibility
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
10.13 Mechanical function
The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
Functions
Voltage release optional
Interlockable
Disconnectors/main switches