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NZMN2-S50-CNA 269256 EATON ELECTRIC Circuit-breaker, 3p, 50A View larger
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NZMN2-S50-CNA 269256 EATON ELECTRIC Circuit-breaker, 3p, 50A

NZMN2-S50-CNA

269256

EATON-MOELLER

Circuit-breaker, 3p, 50A

NZMN2-S50-CNA

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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

Total price: $357.05
Unit price: $357.05

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Circuit-breaker, 3p, 50A
Series NZM..-S..CNA circuit-breakers cover all application cases with just four compact sizes and are suitable for use in the worldwide market. Modular function groups always make mounting flexible. With magnetic short-circuit release in connection with overload relay. With short-circuit release lacking overload trip. Notes: Switches conform to UL/CSA as well as IEC regulations. The rating plate contains IEC switching performance values.

General specifications
Product name
Eaton Moeller series NZM molded case circuit breaker magnetic
Part no.
NZMN2-S50-CNA
EAN
4015082692568
Product Length/Depth
149 millimetre
Product height
195 millimetre
Product width
105 millimetre
Product weight
2.345 kilogram
Compliances
RoHS conform
Certifications
CSA (Class No. 1432-01)
CSA certified
Specially designed for North America
UL (File No. E31593)
IEC 60947-2
UL (Category Control Number DKPU2)
IEC
UL 489
UL/CSA
CSA-C22.2 No. 5-09
CE marking
IEC/EN 60947
UL listed
CSA (File No. 22086)
Product Tradename
NZM
Product Type
Molded case circuit breaker
Product Sub Type
Magnetic
Delivery program
Application
Branch circuits, feeder circuits
Use in unearthed supply systems at 690 V
Type
Circuit breaker
Number of poles
Three-pole
Amperage Rating
50 A
Release system
Thermomagnetic release
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)
Rated current = rated uninterrupted current: 50 A
Switches conform to UL/CSA as well as the IEC regulations. IEC switching performance values are contained on the rating plate.
Motor protection in conjunction with contactor and overload relay
With short-circuit release
Without overload release Ir
Technical Data - Electrical
Voltage rating
690 V - 690 V
Rated operating voltage Ue (UL) - max
600 Y / 347 V, 480 V
Rated insulation voltage (Ui)
1000 V
Rated impulse withstand voltage (Uimp) at auxiliary contacts
6000 V
Rated impulse withstand voltage (Uimp) at main contacts
8000 V
Rated operational current
300 A (415 V AC-1, making and breaking capacity)
300 A (400 V AC-1, making and breaking capacity)
50 A (690 V AC-1, making and breaking capacity)
50 A (660-690 V AC-3, making and breaking capacity)
Rated short-time withstand current (t = 0.3 s)
1.9 kA
Rated short-time withstand current (t = 1 s)
1.9 kA
Instantaneous current setting (Ii) - min
8 A
Instantaneous current setting (Ii) - max
14 A
Overload current setting (Ir) - min
0 A
Overload current setting (Ir) - max
0 A
Short-circuit release non-delayed setting - min
400 A
Short-circuit release non-delayed setting - max
700 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
35 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 operating power at AC-3, 230 V
15 kW
Rated operating power at AC-3, 400 V
22 kW
Short-circuit total breaktime
< 10 ms
Low-voltage HBC fuse - max
355 A gG/gL
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 415 V AC-3
7500 operations at 690 V AC-1
10000 operations at 400 V AC-1
5000 operations at 690 V AC-3
6500 operations at 400 V AC-3
Direction of incoming supply
As required
Technical Data - Mechanical
Mounting Method
Built-in device fixed built-in technique
Fixed
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)
Protection against direct contact
Finger and back-of-hand proof to VDE 0106 part 100
Shock resistance
20 g (half-sinusoidal shock 20 ms)
Switch off technique
Magnetic
Climatic proofing
Damp heat, constant, to IEC 60068-2-78
Damp heat, cyclic, to IEC 60068-2-30
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)
Rated current = rated uninterrupted current: 50 A
Switches conform to UL/CSA as well as the IEC regulations. IEC switching performance values are contained on the rating plate.
Motor protection in conjunction with contactor and overload relay
With short-circuit release
Without overload release Ir
Lifespan, mechanical
20000 operations
Technical Data - Mechanical - Terminals
Standard terminals
Screw terminal
Terminal capacity (control cable)
14 mm² - 18 mm² (1x)
16 mm² - 18 mm² (2x)
Terminal capacity (aluminum solid conductor/cable)
16 mm² (1x) at tunnel terminal
Terminal capacity (copper busbar)
Max. 20 mm x 5 mm direct at switch rear-side connection
Min. 16 mm x 5 mm direct at switch rear-side connection
M8 at rear-side screw connection
Terminal capacity (copper solid conductor/cable)
6 mm² - 11 mm² (1x) direct at switch rear-side connection
16 mm² (1x) at tunnel terminal
6 mm² - 12 mm² (1x) at box terminal
Terminal capacity (copper stranded conductor/cable)
4 mm² - 3/0 mm² (1x) direct at switch rear-side connection
4 mm² - 350 mm² (1x) at box terminal
4 mm² - 350 mm² (1x) at tunnel terminal
Terminal capacity (copper strip)
Min. 2 segments of 9 mm x 0.8 mm at box terminal
Max. 10 segments of 16 mm x 0.8 mm at rear-side connection (punched)
Min. 2 segements of 16 mm x 0.8 mm at rear-side connection (punched)
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)
50 A
Equipment heat dissipation, current-dependent
2.38 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
Short-circuit protection

Technical data ETIM 9.0

Low-voltage industrial components (EG000017) / Motor protection circuit-breaker (EC000074)
Electric engineering, automation, process control engineering / Low-voltage switch technology / Circuit breaker (LV < 1 kV) / Motor protection circuit-breaker (ecl@ss13-27-37-04-01 [AGZ529021])
Overload release current setting
0 - 0 A
Adjustment range undelayed short-circuit release
8 - 14 A
With thermal overload protection
No
Phase failure sensitive
No
Switch off technique
Magnetic
Rated operating voltage
690 - 690 V
Rated permanent current Iu
50 A
Rated operation power at AC-3, 230 V
15 kW
Rated operation power at AC-3, 400 V
22 kW
Power loss
2.4 W
Type of electrical connection of main circuit
Screw connection
Type of control element
Rocker lever
Device construction
Built-in device fixed built-in technique
With integrated auxiliary switch
No
With integrated under voltage release
No
Number of poles
3
Rated short-circuit breaking capacity lcu at 400 V, AC
35 kA
Degree of protection (IP)
IP20
Height
195 mm
Width
105 mm
Depth
149 mm

Datasheet - PDF

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Title: Size: Type:
NZMN2-S50-CNA 269256 EN_269256.pdf 577 Kbytes NZMN2-S50-CNA 269256 EN_269256.pdf

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