Product name
Eaton Moeller series NZM molded case circuit breaker thermo-magnetic
Product Length/Depth
88 millimetre
Product height
165.5 millimetre
Product width
90 millimetre
Product weight
1.083 kilogram
Certifications
Specially designed for North America
CSA-C22.2 No. 5-09
CSA (File No. 22086)
CE marking
UL (File No. E31593)
IEC 60947-2
IEC/EN 60947
CSA (Class No. 1432-01)
UL 489
UL listed
IEC
UL/CSA
CSA certified
UL (Category Control Number DIVQ)
Product Type
Molded case circuit breaker
Product Sub Type
Thermo-magnetic
Application
Branch circuits, feeder circuits
Use in unearthed supply systems at 690 V
Circuit breaker frame type
NZM1
Number of poles
Three-pole
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: 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
Technical Data - Electrical
Voltage rating
690 V - 690 V
Rated operating voltage Ue (UL) - max
480 Y / 277 V
Rated insulation voltage (Ui)
690 V AC
Rated impulse withstand voltage (Uimp) at auxiliary contacts
6000 V
Rated impulse withstand voltage (Uimp) at main contacts
6000 V
Rated operational current
32 A (660-690 V AC-3, making and breaking capacity)
160 A (380/400 V AC-1, making and breaking capacity)
125 A (415 V AC-1, making and breaking capacity)
32 A (690 V AC -1, making and breaking capacity)
Instantaneous current setting (Ii) - min
350 A
Instantaneous current setting (Ii) - max
350 A
Overload current setting (Ir) - min
25 A
Overload current setting (Ir) - max
32 A
Short delay current setting (Isd) - min
0 A
Short delay current setting (Isd) - max
0 A
Short-circuit release non-delayed setting - min
350 A
Short-circuit release non-delayed setting - max
350 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 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
40 kA
Rated short-circuit making capacity Icm at 690 V, 50/60 Hz
17 kA
Short-circuit total breaktime
< 10 ms
Low-voltage HBC fuse - max
200 A gG/gL
Electrical connection type of main circuit
Frame clamp
Isolation
300 V AC (between the auxiliary contacts)
500 V AC (between auxiliary contacts and main contacts)
Number of operations per hour - max
120
Utilization category
A (IEC/EN 60947-2)
Lifespan, electrical
10000 operations at 400 V AC-1
7500 operations at 690 V AC-1
Direction of incoming supply
As required
Technical Data - Mechanical
Mounting Method
DIN rail (top hat rail) mounting optional
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)
IP10 (tunnel terminal)
IP00 (terminations, phase isolator and strip terminal)
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)
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
Climatic proofing
Damp heat, cyclic, to IEC 60068-2-30
Damp heat, constant, to IEC 60068-2-78
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
Lifespan, mechanical
20000 operations
Technical Data - Mechanical - Terminals
Standard terminals
Box 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)
M6 at rear-side screw connection
Max. 16 mm x 5 mm direct at switch rear-side connection
Min. 12 mm x 5 mm direct at switch rear-side connection
Terminal capacity (copper solid conductor/cable)
6 mm² - 9 mm² (2x) direct at switch rear-side connection
6 mm² - 12 mm² (1x) direct at switch rear-side connection
6 mm² - 12 mm² (1x) at box terminal
6 mm² (1x) at tunnel terminal
Terminal capacity (copper stranded conductor/cable)
4 mm² - 3/0 mm² (1x) at tunnel terminal
4 mm² - 2/0 mm² (1x) direct at switch rear-side connection
4 mm² - 2/0 mm² (1x) at box terminal
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
Design verification as per IEC/EN 61439 - technical data
Rated operational current for specified heat dissipation (In)
32 A
Equipment heat dissipation, current-dependent
9.31 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.
Functions
Current limiting circuit breaker
System and cable protection
