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259124
Model Kodu: NZMN2-VE250

Eaton Moeller series NZM - Molded Case Circuit Breaker. Circuit-breaker, 3p, 250A, N, frame2, VE250

General specifications

Product Name
Eaton Moeller series NZM molded case circuit breaker electronic
Catalog Number
259124
EAN
4015082591243
Product Length/Depth
149 mm
Product Height
184 mm
Product Width
105 mm
Product Weight
2.486 kg
Compliances
RoHS conform
Certifications
IEC
IEC/EN 60947
Model Code
NZMN2-VE250

Delivery program

Application
Use in unearthed supply systems at 690 V
Type
Circuit breaker
Circuit breaker frame type
NZM2
Number of poles
Three-pole
Amperage Rating
250 A
Release system
Electronic release
Features
Motor drive optional
Protection unit
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: fixed OFF
  • Rated current = rated uninterrupted current: 250 A

Technical Data - Electrical

Voltage rating
690 V - 690 V
Rated impulse withstand voltage (Uimp) at auxiliary contacts
6000 V
Rated impulse withstand voltage (Uimp) at main contacts
8000 V
Rated short-time withstand current (t = 0.3 s)
1.9 kA
Rated short-time withstand current (t = 1 s)
1.9 kA
Amperage Rating
250 A
Instantaneous current setting (Ii) - min
3000 A
Instantaneous current setting (Ii) - max
3000 A
Overload current setting (Ir) - min
125 A
Overload current setting (Ir) - max
250 A
Short delay current setting (Isd) - min
250 A
Short delay current setting (Isd) - max
2500 A
Short-circuit release delayed setting - min
250 A
Short-circuit release delayed setting - max
2500 A
Short-circuit release non-delayed setting - min
3000 A
Short-circuit release non-delayed setting - max
3000 A
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 230 V, 50/60 Hz
85 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 400/415 V, 50/60 Hz
50 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 440 V, 50/60 Hz
35 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 525 V, 50/60 Hz
25 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 690 V, 50/60 Hz
5 kA
Rated short-circuit making capacity Icm at 240 V, 50/60 Hz
187 kA
Rated short-circuit making capacity Icm at 400/415 V, 50/60 Hz
105 kA
Rated short-circuit making capacity Icm at 440 V, 50/60 Hz
74 kA
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
Short-circuit total breaktime
< 10 ms
Electrical connection type of main circuit
Screw connection
Isolation
300 V AC (between the auxiliary contacts)
500 V AC (between auxiliary contacts and main contacts)
Number of operations per hour - max
120
Handle type
Rocker lever
Utilization category
A (IEC/EN 60947-2)
Overvoltage category
III
Pollution degree
3
Lifespan, electrical
6500 operations at 400 V AC-3
5000 operations at 690 V AC-3
7500 operations at 690 V AC-1
10000 operations at 415 V AC-1
10000 operations at 400 V AC-1
6500 operations at 415 V AC-3
Direction of incoming supply
As required

Technical Data - Mechanical

Mounting Method
Fixed
Built-in device fixed built-in technique
DIN rail (top hat rail) mounting optional
Mounting Method
Fixed
Built-in device fixed built-in technique
DIN rail (top hat rail) mounting optional
Degree of protection
IP20
IP20 (basic degree of protection, in the operating controls area)
Degree of protection (IP), front side
IP66 (with door coupling rotary handle)
IP40 (with insulating surround)
Degree of protection (terminations)
IP10 (tunnel terminal)
IP00 (terminations, phase isolator and strip terminal)
Protection against direct contact
Finger and back-of-hand proof to DIN EN 50274/VDE 0106 part 110
Shock resistance
20 g (half-sinusoidal shock 20 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
Position of connection for main current circuit
Front side
Climatic proofing
Damp heat, cyclic, to IEC 60068-2-30
Damp heat, constant, to IEC 60068-2-78
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: fixed OFF
  • Rated current = rated uninterrupted current: 250 A
Lifespan, mechanical
20000 operations

Technical Data - Mechanical - Terminals

Standard terminals
Screw terminal
Optional terminals
Box terminal. Connection on rear. Tunnel terminal
Terminal capacity (control cable)
0.75 mm² - 1.5 mm² (2x)
0.75 mm² - 2.5 mm² (1x)
Terminal capacity (aluminum solid conductor/cable)
16 mm² (1x) at tunnel terminal
10 mm² - 16 mm² (1x) direct at switch rear-side connection
10 mm² - 16 mm² (2x) direct at switch rear-side connection
Terminal capacity (aluminum stranded conductor/cable)
25 mm² - 50 mm² (1x) direct at switch rear-side connection
25 mm² - 185 mm² (1x) at tunnel terminal
25 mm² - 50 mm² (2x) direct at switch rear-side connection
Terminal capacity (copper busbar)
M8 at rear-side screw connection
Min. 16 mm x 5 mm direct at switch rear-side connection
Max. 24 mm x 8 mm direct at switch rear-side connection
Terminal capacity (copper solid conductor/cable)
10 mm² - 16 mm² (1x) at box terminal
6 mm² - 16 mm² (2x) at box terminal
16 mm² (1x) at tunnel terminal
6 mm² - 16 mm² (2x) direct at switch rear-side connection
10 mm² - 16 mm² (1x) direct at switch rear-side connection
Terminal capacity (copper stranded conductor/cable)
25 mm² - 185 mm² (1x) at 1-hole tunnel terminal
25 mm² - 70 mm² (2x) at box terminal
25 mm² - 185 mm² (1x) at box terminal
25 mm² - 185 mm² (1x) direct at switch rear-side connection
25 mm² - 70 mm² (2x) direct at switch rear-side connection
Terminal capacity (copper strip)
Max. 10 segments of 24 mm x 0.8 mm at rear-side connection (punched)
Max. 8 segments of 24 mm x 1 mm (2x) at box terminal
Min. 2 segements of 16 mm x 0.8 mm at rear-side connection (punched)
Min. 2 segments of 9 mm x 0.8 mm at box terminal
Max. 10 segments of 16 mm x 0.8 mm at box terminal

Design verification as per IEC/EN 61439 - technical data

Rated operational current for specified heat dissipation (In)
250 A
Equipment heat dissipation, current-dependent
51.56 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.

Additional information

Functions
Systems, cable, selectivity and generator protection

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