Trade Price
£3,560.01
Per
1
Unit
EACH
Pack Quantity
Eaton Moeller series NZM - Molded Case Circuit Breaker. Circuit-breaker, 3p, 550A, N, 4
Product Length/Depth
401 mm
Product Height
207 mm
Product Width
210 mm
Product Weight
18.24 kg
Compliances
RoHS conform
Certifications
IEC
IEC/EN 60947
Rated operational current for specified heat dissipation (In)
550 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
15 kA
Rated short-circuit breaking capacity Icu (IEC/EN 60947) at 400/415 V, 50/60 Hz
26 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
550 A
10.2.5 Lifting
Does not apply, since the entire switchgear needs to be evaluated.
Terminal capacity (copper strip)
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 32 mm x 1 mm (2x) at flat conductor terminal
10 segments of 50 mm x 1 mm (2x) at 1-hole module plate
Max. 10 segments of 50 mm x 1 mm (2x) at rear-side connection (punched)
Min. 5 segments of 25 mm x 1 mm at rear-side connection (punched)
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
Fitted with:
Thermal protection
Protection against direct contact
Finger and back-of-hand proof to VDE 0106 part 100
Terminal capacity (copper busbar)
Min. 60 mm x 10 mm at rear-side width extension
Max. 50 mm x 10 mm (2x) direct at switch rear-side connection
Min. 25 mm x 5 mm direct at switch rear-side connection
Min. 25 mm x 5 mm at rear-side 1-hole module plate
Max. 80 mm x 10 mm (2x) at rear-side width extension
50 mm x 10 mm (2x) at rear-side 2-hole module plate
Max. 50 mm x 10 mm (2x) at rear-side 1-hole module plate
M10 at rear-side screw connection
10.8 Connections for external conductors
Is the panel builder's responsibility.
Special features
IEC/EN 60947-4-1, IEC/EN 60947-2
The circuit-breaker fulfills all requirements for AC-3 switching category.
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)
All AC-3 rating data applies to direct switching by the circuit-breaker under normal operating conditions. If, for example, a contactor takes over AC-3 switching under normal operating conditions, the full rated uninterrupted current applies to the circuit-breaker, In = Iu.
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)
Rated current = rated uninterrupted current: 550 A
Ambient operating temperature - max
70 °C
Climatic proofing
Damp heat, constant, to IEC 60068-2-78
Damp heat, cyclic, to IEC 60068-2-30
Terminal capacity (aluminum stranded conductor/cable)
50 mm² - 240 mm² (4x) at 4-hole tunnel terminal
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
Lifespan, electrical
2000 operations at 400 V AC-3
2000 operations at 690 V AC-1
3000 operations at 400 V AC-1
1000 operations at 690 V AC-3
3000 operations at 415 V AC-1
2000 operations at 415 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
26 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
33.58 W
Instantaneous current setting (Ii) - min
550 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 operational current
544 A (400 V AC-3)
550 A (690 V AC-3)
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 230 V, 50/60 Hz
37 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
105 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 440 V, 50/60 Hz
26 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
7700 A
Overload current setting (Ir) - min
275 A
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
550 A
Voltage rating
690 V - 690 V
Terminal capacity (copper solid conductor/cable)
120 mm² - 300 mm² (1x) at rear-side 1-hole module plate
300 mm² (4x) at rear-side width extension
95 mm² - 240 mm² (6x) at rear-side width extension
95 mm² - 185 mm² (2x) at rear-side 2-hole module plate
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
Degree of protection (terminations)
IP00 (terminations, phase isolator and strip terminal)
IP10 (tunnel terminal)
10.9.2 Power-frequency electric strength
Is the panel builder's responsibility.
Short-circuit release non-delayed setting - min
1100 A
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)
19.2 kA
Rated impulse withstand voltage (Uimp) at auxiliary contacts
6000 V
Terminal capacity (aluminum solid conductor/cable)
70 mm² - 185 mm² (2x) at rear-side 1-hole module plate
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 - 240 mm² (6x) at rear-side width extension
Switch off technique
Electronic
Rated short-time withstand current (t = 0.3 s)
19.2 kA
Ambient storage temperature - max
70 °C
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 525 V, 50/60 Hz
19 kA
Optional terminals
Connection on rear. Strip terminal. Tunnel terminal
Release system
Electronic release
Pollution degree
3
10.7 Internal electrical circuits and connections
Is the panel builder's responsibility.
Rated operating power at AC-3, 230 V
160 kW
10.10 Temperature rise
The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
Functions
Motor protection
Phase failure sensitive
Short-circuit release non-delayed setting - max
7700 A
Standard terminals
Screw terminal
Rated short-circuit making capacity Icm at 400/415 V, 50/60 Hz
105 kA
Rated operating power at AC-3, 400 V
315 kW
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
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)
Rated insulation voltage (Ui)
1000 V
Datasheet