Trade Price
£5,938.13
Per
1
Unit
EACH
Pack Quantity
1
Eaton Moeller series NZM - Molded Case Circuit Breaker. Circuit-breaker, 3p, 1250A
Product Length/Depth
401 mm
Product Height
207 mm
Product Width
210 mm
Product Weight
21 kg
Compliances
RoHS conform
Certifications
IEC
IEC/EN 60947
Rated operational current for specified heat dissipation (In)
1250 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
37 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 fixed built-in technique
Fixed
Amperage Rating
1250 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 1-hole module plate
Min. 5 segments of 25 mm x 1 mm at rear-side connection (punched)
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
Max. 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
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)
M10 at rear-side screw connection
Max. 50 mm x 10 mm (2x) direct at switch rear-side connection
Min. 25 mm x 5 mm at rear-side 1-hole module plate
Min. 60 mm x 10 mm at rear-side width extension
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
Max. 80 mm x 10 mm (2x) at rear-side width extension
Min. 25 mm x 5 mm direct at switch rear-side 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
i²t constant function: switchable
Rated current = rated uninterrupted current: 1250 A
Ambient operating temperature - max
70 °C
Position of connection for main current circuit
Front side
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)
50 mm² - 185 mm² (4x) direct at switch rear-side connection
120 mm² - 185 mm² (1x) direct at switch rear-side connection
Features
Motor drive optional
Protection unit
Lifespan, electrical
2000 operations at 415 V AC-3
3000 operations at 415 V AC-1
1000 operations at 690 V AC-3
2000 operations at 690 V AC-1
3000 operations at 400 V AC-1
2000 operations at 400 V AC-3
Electrical connection type of main circuit
Screw connection
Short-circuit total breaktime
< 25 ms (≦ 415 V); < 35 ms (> 415 V)
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
B (IEC/EN 60947-2)
Number of poles
Three-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
173.44 W
Instantaneous current setting (Ii) - min
2500 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
63 kA
Application
Use in unearthed supply systems at 525 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
275 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 440 V, 50/60 Hz
50 kA
Short-circuit release delayed setting - max
12500 A
Degree of protection (IP), front side
IP66 (with door coupling rotary handle)
IP40 (with insulating surround)
Rated short-circuit making capacity Icm at 525 V, 50/60 Hz
143 kA
Rated short-circuit making capacity Icm at 690 V, 50/60 Hz
100 kA
Instantaneous current setting (Ii) - max
15000 A
Overload current setting (Ir) - min
630 A
Short delay current setting (Isd) - min
1250 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
10000 operations
Overload current setting (Ir) - max
1250 A
Voltage rating
690 V - 690 V
Terminal capacity (copper solid conductor/cable)
300 mm² (4x) at rear-side width extension
95 mm² - 240 mm² (6x) at rear-side width extension
35 mm² - 185 mm² (4x) at rear-side 2-hole module plate
50 mm² - 240 mm² (4x) at 4-hole tunnel terminal
95 mm² - 300 mm² (2x) at rear-side 1-hole module plate
95 mm² - 185 mm² (2x) at rear-side 2-hole module plate
120 mm² - 300 mm² (1x) at rear-side 1-hole module plate
Degree of protection (terminations)
IP00 (terminations, phase isolator and strip terminal)
IP10 (tunnel terminal)
Short-circuit release delayed setting - min
1260 A
Terminal capacity (aluminum stranded conductor/cable)
50 mm² - 240 mm² (4x) at 4-hole tunnel terminal
10.9.2 Power-frequency electric strength
Is the panel builder's responsibility.
Short-circuit release non-delayed setting - min
2500 A
Degree of protection
IP20
IP20 (basic degree of protection, in the operating controls area)
Overvoltage category
III
Rated short-time withstand current (t = 1 s)
19.2 kA
Short delay current setting (Isd) - max
12500 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)
19.2 kA
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
50 kA
Optional terminals
Connection on rear. Strip terminal. 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
Short-circuit release non-delayed setting - max
15000 A
Rated short-circuit making capacity Icm at 400/415 V, 50/60 Hz
187 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
187 kA
Number of auxiliary contacts (normally open contacts)
0
Isolation
500 V AC (between auxiliary contacts and main contacts)
300 V AC (between the auxiliary contacts)
Number of operations per hour - max
60
Circuit breaker frame type
NZM4
Direction of incoming supply
As required
Shock resistance
15 g (half-sinusoidal shock 11 ms)
Terminal capacity (aluminum solid conductor/cable)
70 mm² - 240 mm² (6x) at rear-side width extension
240 mm² (2x) at rear-side width extension
50 mm² (4x) at rear-side 2-hole module plate
185 mm² - 240 mm² (1x) at rear-side 1-hole module plate
70 mm² - 185 mm² (2x) at rear-side 1-hole module plate
Datasheet