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192575
Model Code: NZMN2-PX250-NA

Eaton Moeller series NZMN2 PXR25 circuit breaker, 250 A, 3-pole, Screw terminal, UL/CSA

Spécifications générales

Product Name
Eaton Moeller series NZM molded case circuit breaker electronic
Catalog Number
192575
EAN
4015081933037
Product Length/Depth
149 mm
Product Height
195 mm
Product Width
105 mm
Product Weight
2.557 kg
Compliances
RoHS conform
Certifications
CE marking
IEC 60947-2
UL/CSA
UL listed
UL (File No. E31593)
UL 489
IEC/EN 60947
CSA (Class No. 1432-01)
UL (Category Control Number DIVQ)
Specially designed for North America
CSA (File No. 22086)
CSA-C22.2 No. 5-09
IEC
CSA certified
Model Code
NZMN2-PX250-NA

Additional information

Functions
Systems, cable, selectivity and generator protection

Delivery program

Amperage Rating
250 A
Application
  • Branch circuits, feeder circuits
  • Use in unearthed supply systems at 690 V
Circuit breaker frame type
NZM2
Features
Motor drive optional
Protection unit
Number of poles
Three-pole
Release system
Electronic release
Special features
Circuit breaker
Type
  • 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: 250 A
  • Switches conform to UL/CSA as well as the IEC regulations. IEC switching performance values are contained on the rating plate.

Design verification as per IEC/EN 61439

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.
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.

Design verification as per IEC/EN 61439 - technical data

Ambient operating temperature - max
70 °C
Ambient storage temperature - max
70 °C
Ambient operating temperature - min
-25 °C
Ambient storage temperature - min
40 °C
Equipment heat dissipation, current-dependent
51.56 W
Rated operational current for specified heat dissipation (In)
250 A

Technical data - electrical

Amperage Rating
250 A
Direction of incoming supply
As required
Electrical connection type of main circuit
Screw connection
Handle type
Rocker lever
Instantaneous current setting (Ii) - max
12 A
Instantaneous current setting (Ii) - min
2 A
Isolation
300 V AC (between the auxiliary contacts)
500 V AC (between auxiliary contacts and main contacts)
Lifespan, electrical
6500 operations at 415 V AC-3
5000 operations at 690 V AC-3
6500 operations at 400 V AC-3
10000 operations at 400 V AC-1
7500 operations at 690 V AC-1
Number of operations per hour - max
120
Overload current setting (Ir) - max
250 A
Overload current setting (Ir) - min
100 A
Overvoltage category
III
Pollution degree
3
Rated impulse withstand voltage (Uimp) at auxiliary contacts
6000 V
Rated impulse withstand voltage (Uimp) at main contacts
8000 V
Rated insulation voltage (Ui)
690 V AC
Rated operating voltage Ue (UL) - max
600 V
Rated operational current
300 A (415 V AC-1, making and breaking capacity)
300 A (380/400 V AC-1, making and breaking capacity)
250 A (660-690 V AC-3, making and breaking capacity)
300 A (690 V AC-1, making and breaking capacity)
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
Rated short-time withstand current (t = 0.3 s)
1.9 kA
Rated short-time withstand current (t = 1 s)
1.9 kA
Short delay current setting (Isd) - max
2500 A
Short delay current setting (Isd) - min
500 A
Short-circuit release delayed setting - max
2500 A
Short-circuit release delayed setting - min
200 A
Short-circuit release non-delayed setting - max
3000 A
Short-circuit release non-delayed setting - min
500 A
Short-circuit total breaktime
< 10 ms
Utilization category
A (IEC/EN 60947-2)
Voltage rating
690 V - 690 V

Technical data - mechanical

Climatic proofing
Damp heat, cyclic, to IEC 60068-2-30
Damp heat, constant, to IEC 60068-2-78
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)
IP00 (terminations, phase isolator and strip terminal)
IP10 (tunnel terminal)
Lifespan, mechanical
20000 operations
Mounting Method
DIN rail (top hat rail) mounting optional
Built-in device fixed built-in technique
Fixed
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
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)
Special features
Circuit breaker

Technical data - mechanical - terminals

Standard terminals
Screw terminal
Terminal capacity (copper busbar)
M8 at rear-side screw connection
Terminal capacity (copper solid conductor/cable)
16 mm² (1x) at tunnel terminal

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