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269208
Model code: NZMB2-A32-NA

Eaton Moeller series NZM - Molded Case Circuit Breaker. Circuit-breaker, 3p, 32A, B, frame2, A32-NA

Product specifications
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General specifications

Product Name
Eaton Moeller series NZM molded case circuit breaker thermo-magnetic
Catalog Number
269208
EAN
4015082692087
Model Code
NZMB2-A32-NA
Product Length/Depth
149 mm
Product Height
195 mm
Product Width
105 mm
Product Weight
2.409 kg
Compliances
RoHS conform
Certifications
Specially designed for North America
CSA (File No. 22086)
IEC 60947-2
UL (Category Control Number DIVQ)
UL listed
CSA-C22.2 No. 5-09
UL/CSA
CSA (Class No. 1432-01)
CSA certified
IEC
UL 489
CE marking
UL (File No. E31593)
IEC/EN 60947

Product specifications

Amperage Rating
32 A
Voltage rating
440 V - 440 V
Circuit breaker frame type
NZM2
Features
Protection unit
Motor drive optional
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
DIN rail (top hat rail) mounting optional
Built-in device fixed built-in technique
Fixed
Climatic proofing
Damp heat, cyclic, to IEC 60068-2-30
Damp heat, constant, to IEC 60068-2-78
Equipment heat dissipation, current-dependent
9.65 W
Isolation
300 V AC (between the auxiliary 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
Low-voltage HBC fuse - max
355 A gG/gL
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 (basic degree of protection, in the operating controls area)
IP20
Direction of incoming supply
As required
Electrical connection type of main circuit
Screw connection
Overvoltage category
III
Rated operational current
300 A (380/400 V AC-1, making and breaking capacity)
300 A (415 V AC-1, making and breaking capacity)
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
Three-pole
Terminal capacity (copper strip)
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 rear-side connection (punched)
Max. 10 segments of 16 mm x 0.8 mm at box terminal
Lifespan, electrical
6500 operations at 415 V AC-3
7500 operations at 400 V AC-1
Functions
System and cable protection
Current limiting circuit breaker
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
  • Switches conform to UL/CSA as well as the IEC regulations. IEC switching performance values are contained on the rating plate.
  • Adjustable overload releases Ir
Application
  • Branch circuits, feeder circuits
  • Use in unearthed supply systems at 440 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
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)
16 mm² - 18 mm² (2x)
14 mm² - 18 mm² (1x)
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 - 12 mm² (1x) at box terminal
16 mm² (1x) at tunnel terminal
6 mm² - 11 mm² (1x) direct at switch rear-side connection
Terminal capacity (aluminum solid conductor/cable)
16 mm² (1x) at tunnel terminal
Terminal capacity (copper stranded conductor/cable)
4 mm² - 350 mm² (1x) at box terminal
4 mm² - 3/0 mm² (1x) direct at switch rear-side connection
4 mm² - 350 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
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 230 V, 50/60 Hz
30 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 400/415 V, 50/60 Hz
25 kA
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 440 V, 50/60 Hz
18.5 kA
Rated short-circuit making capacity Icm at 400/415 V, 50/60 Hz
53 kA
Rated short-circuit making capacity Icm at 440 V, 50/60 Hz
53 kA
Standard terminals
Screw terminal
Rated operating voltage Ue (UL) - max
600Y/347 V, 480 V
Rated short-circuit making capacity Icm at 240 V, 50/60 Hz
63 kA
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

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