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281249
Model code: NZMN1-4-A32

Eaton Moeller series NZM - Molded Case Circuit Breaker. Circuit-breaker, 4p, 32A, N, frame 1, 4-A32

Product specifications
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General specifications

Product Name
Eaton Moeller series NZM molded case circuit breaker thermo-magnetic
Catalog Number
281249
EAN
4015082812492
Product Length/Depth
84.5 mm
Product Height
145 mm
Product Width
120 mm
Product Weight
1.325 kg
Compliances
RoHS conform
Certifications
IEC/EN 60947
IEC
Model Code
NZMN1-4-A32

Product specifications

Amperage Rating
32 A
Voltage rating
690 V - 690 V
Circuit breaker frame type
NZM1
Features
Protection unit
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.
Pollution degree
3
Lifespan, mechanical
20000 operations
Utilization category
A (IEC/EN 60947-2)
Mounting Method
Built-in device fixed built-in technique
Fixed
DIN rail (top hat rail) mounting optional
Climatic proofing
Damp heat, constant, to IEC 60068-2-78
Damp heat, cyclic, to IEC 60068-2-30
Equipment heat dissipation, current-dependent
9.31 W
Isolation
500 V AC (between auxiliary contacts and main contacts)
300 V AC (between the auxiliary 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
Number of auxiliary contacts (change-over contacts)
0
Number of auxiliary contacts (normally closed contacts)
0
Number of auxiliary contacts (normally open contacts)
0
Protection against direct contact
Finger and back-of-hand proof to DIN EN 50274/VDE 0106 part 110
Degree of protection
IP20
IP20 (basic degree of protection, in the operating controls area)
Direction of incoming supply
As required
Electrical connection type of main circuit
Frame clamp
Current rating of neutral conductor
200% of phase conductor
Overvoltage category
III
Degree of protection (IP), front side
IP40 (with insulating surround)
IP66 (with door coupling rotary handle)
Degree of protection (terminations)
IP00 (terminations, phase isolator and strip terminal)
IP10 (tunnel terminal)
Number of poles
Four-pole
Terminal capacity (copper strip)
Min. 2 segments of 9 mm x 0.8 mm at box terminal
Max. 9 segments of 9 mm x 0.8 mm at box terminal
Lifespan, electrical
7500 operations at 690 V AC-1
10000 operations at 400 V AC-1
10000 operations at 415 V AC-1
Functions
System and cable protection
Type
Circuit breaker
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: 32 A
  • Set value in neutral conductor is synchronous with set value Ir of main pole.
  • Terminal capacity hint: Up to 95 mm² can be connected depending on the cable manufacturer.
Application
Use in unearthed supply systems at 690 V
Shock resistance
20 g (half-sinusoidal shock 20 ms)
Position of connection for main current circuit
Front side
Rated operational current for specified heat dissipation (In)
32 A
Power loss
9.3 W
Release system
Thermomagnetic release
Short-circuit total breaktime
< 10 ms
Short-circuit release non-delayed setting - max
350 A
Short-circuit release non-delayed setting - min
350 A
Terminal capacity (control cable)
0.75 mm² - 2.5 mm² (1x)
0.75 mm² - 1.5 mm² (2x)
Terminal capacity (copper busbar)
Min. 12 mm x 5 mm direct at switch rear-side connection
Max. 16 mm x 5 mm direct at switch rear-side connection
M6 at rear-side screw connection
Terminal capacity (copper solid conductor/cable)
6 mm² - 16 mm² (2x) at box terminal
10 mm² - 16 mm² (1x) at box terminal
6 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
Terminal capacity (aluminum solid conductor/cable)
10 mm² - 16 mm² (2x) direct at switch rear-side connection
16 mm² (1x) at tunnel terminal
10 mm² - 16 mm² (1x) direct at switch rear-side connection
Terminal capacity (copper stranded conductor/cable)
10 mm² - 70 mm² (1x) at box terminal
25 mm² (2x) direct at switch rear-side connection
10 mm² - 70 mm² (1x) direct at switch rear-side connection
25 mm² - 95 mm² (1x) at 1-hole tunnel terminal
6 mm² - 25 mm² (2x) at box terminal
Terminal capacity (aluminum stranded conductor/cable)
25 mm² - 35 mm² (2x) direct at switch rear-side connection
25 mm² - 35 mm² (1x) direct at switch rear-side connection
25 mm² - 95 mm² (1x) at tunnel terminal
Handle type
Rocker lever
Instantaneous current setting (Ii) - max
350 A
Instantaneous current setting (Ii) - min
350 A
Number of operations per hour - max
120
Overload current setting (Ir) - max
32 A
Overload current setting (Ir) - min
25 A
Overload current setting (Ir)
25 A - 32 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
10 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 690 V, 50/60 Hz
7.5 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
40 kA
Rated short-circuit making capacity Icm at 690 V, 50/60 Hz
17 kA
Standard terminals
Box terminal
Optional terminals
Connection on rear. Screw terminal. Tunnel terminal
Rated short-circuit making capacity Icm at 240 V, 50/60 Hz
187 kA
Rated impulse withstand voltage (Uimp) at auxiliary contacts
6000 V
Rated impulse withstand voltage (Uimp) at main contacts
6000 V
Rated insulation voltage (Ui)
690 V AC

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