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NZMH2-M50 281303 EATON ELECTRIC Circuit-breaker, 3p, 50A
NZMH2-M50
281303
EATON-MOELLER
Circuit-breaker, 3p, 50A
NZMH2-M50
Eaton Moeller series NZM - Molded Case Circuit Breaker. Circuit-breaker, 3p, 50A, H2-M50
Low-voltage industrial components > Motor protection circuit-breaker
Circuit Breakers NZM
* Brand new product in its original packaging covered by the warranties and certifications provided by EATON-MOELLER
More info
▲General specifications
Product Name
Eaton Moeller series NZM molded case circuit breaker thermo-magnetic
Catalog Number
281303
Model Code
NZMH2-M50
EAN
4015082813031
Product Length/Depth
149 mm
Product Height
184 mm
Product Width
105 mm
Product Weight
2.345 kg
Compliances
RoHS conform
Certifications
IEC
IEC/EN 60947
IEC/EN 60947
Product specifications
Type
Circuit breaker
Special features
Application
Use in unearthed supply systems at 690 V
Amperage Rating
50 A
Voltage rating
690 V - 690 V
Circuit breaker frame type
NZM2
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.
Fitted with:
Thermal protection
Pollution degree
3
Mounting Method
Built-in device fixed built-in technique
Fixed
Fixed
Climatic proofing
Damp heat, cyclic, to IEC 60068-2-30
Damp heat, constant, to IEC 60068-2-78
Damp heat, constant, to IEC 60068-2-78
Equipment heat dissipation, current-dependent
17.03 W
Utilization category
A (IEC/EN 60947-2)
Isolation
300 V AC (between the auxiliary contacts)
500 V AC (between auxiliary contacts and main contacts)
500 V AC (between auxiliary contacts and main contacts)
Ambient operating temperature - max
70 °C
Ambient operating temperature - min
-25 °C
Ambient storage temperature - max
70 °C
Ambient storage temperature - min
40 °C
Protection against direct contact
Finger and back-of-hand proof to VDE 0106 part 100
Rated insulation voltage (Ui)
1000 V
Rated operating power at AC-3, 230 V
15 kW
Rated operating power at AC-3, 400 V
22 kW
Switch off technique
Thermomagnetic
Degree of protection
IP20 (basic degree of protection, in the operating controls area)
IP20
IP20
Direction of incoming supply
As required
Electrical connection type of main circuit
Screw connection
Lifespan, mechanical
20000 operations
Overvoltage category
III
Rated operational current
41 A (400 V AC-3)
Degree of protection (IP), front side
IP66 (with door coupling rotary handle)
IP40 (with insulating surround)
IP40 (with insulating surround)
Degree of protection (terminations)
IP10 (tunnel terminal)
IP00 (terminations, phase isolator and strip terminal)
IP00 (terminations, phase isolator and strip terminal)
Number of poles
Three-pole
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
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
Lifespan, electrical
10000 operations at 415 V AC-1
7500 operations at 690 V AC-1
5000 operations at 690 V AC-3
6500 operations at 400 V AC-3
6500 operations at 415 V AC-3
10000 operations at 400 V AC-1
7500 operations at 690 V AC-1
5000 operations at 690 V AC-3
6500 operations at 400 V AC-3
6500 operations at 415 V AC-3
10000 operations at 400 V AC-1
Functions
Motor protection
Shock resistance
20 g (half-sinusoidal shock 20 ms)
Rated operational current for specified heat dissipation (In)
50 A
Rated short-time withstand current (t = 0.3 s)
1.9 kA
Rated short-time withstand current (t = 1 s)
1.9 kA
Short-circuit release non-delayed setting - max
700 A
Short-circuit release non-delayed setting - min
400 A
Handle type
Rocker lever
Instantaneous current setting (Ii) - max
700 A
Instantaneous current setting (Ii) - min
400 A
Number of operations per hour - max
120
Overload current setting (Ir) - max
50 A
Overload current setting (Ir) - min
40 A
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 230 V, 50/60 Hz
150 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 400/415 V, 50/60 Hz
130 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 440 V, 50/60 Hz
130 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 525 V, 50/60 Hz
37.5 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 690 V, 50/60 Hz
5 kA
Standard terminals
Screw terminal
Optional terminals
Box terminal. Connection on rear. Tunnel terminal
Release system
Thermomagnetic release
Short-circuit total breaktime
< 10 ms
Terminal capacity (aluminum solid conductor/cable)
10 mm² - 16 mm² (2x) direct at switch rear-side connection
10 mm² - 16 mm² (1x) direct at switch rear-side connection
16 mm² (1x) at tunnel terminal
10 mm² - 16 mm² (1x) direct at switch rear-side connection
16 mm² (1x) at tunnel terminal
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
25 mm² - 185 mm² (1x) at tunnel terminal
25 mm² - 50 mm² (2x) direct at switch rear-side connection
Terminal capacity (control cable)
0.75 mm² - 1.5 mm² (2x)
0.75 mm² - 2.5 mm² (1x)
0.75 mm² - 2.5 mm² (1x)
Terminal capacity (copper busbar)
M8 at rear-side screw connection
Max. 24 mm x 8 mm direct at switch rear-side 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
Min. 16 mm x 5 mm direct at switch rear-side connection
Terminal capacity (copper solid conductor/cable)
6 mm² - 16 mm² (2x) at box terminal
6 mm² - 16 mm² (2x) direct at switch rear-side connection
16 mm² (1x) at tunnel terminal
10 mm² - 16 mm² (1x) at box terminal
10 mm² - 16 mm² (1x) direct at switch rear-side connection
6 mm² - 16 mm² (2x) direct at switch rear-side connection
16 mm² (1x) at tunnel terminal
10 mm² - 16 mm² (1x) at box terminal
10 mm² - 16 mm² (1x) direct at switch rear-side connection
Terminal capacity (copper stranded conductor/cable)
25 mm² - 185 mm² (1x) at box terminal
25 mm² - 70 mm² (2x) at box terminal
25 mm² - 185 mm² (1x) at 1-hole tunnel terminal
25 mm² - 185 mm² (1x) direct at switch rear-side connection
25 mm² - 70 mm² (2x) direct at switch rear-side connection
25 mm² - 70 mm² (2x) at box terminal
25 mm² - 185 mm² (1x) at 1-hole tunnel terminal
25 mm² - 185 mm² (1x) direct at switch rear-side connection
25 mm² - 70 mm² (2x) direct at switch rear-side connection
Rated short-circuit breaking capacity Icu (IEC/EN 60947) at 400/415 V, 50/60 Hz
130 kA
Rated short-circuit making capacity Icm at 400/415 V, 50/60 Hz
330 kA
Rated short-circuit making capacity Icm at 440 V, 50/60 Hz
286 kA
Rated short-circuit making capacity Icm at 525 V, 50/60 Hz
105 kA
Rated short-circuit making capacity Icm at 690 V, 50/60 Hz
40 kA
Rated short-circuit making capacity Icm at 240 V, 50/60 Hz
330 kA
Rated impulse withstand voltage (Uimp) at auxiliary contacts
6000 V
Rated impulse withstand voltage (Uimp) at main contacts
8000 V
Power loss
17 W
Datasheet - PDF
▲| Title: | Size: | Type: |
|---|---|---|
| NZMH2-M50 281303 ES_107610.pdf | 4 Mbytes |
 |
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