General specifications
Product name
Eaton Moeller series NZM molded case circuit breaker thermo-magnetic
Part no.
NZMH1-A63
EAN
4015082844110
Product Length/Depth
84.5 millimetre
Product height
145 millimetre
Product width
90 millimetre
Product weight
1.015 kilogram
Compliances
RoHS conform
Certifications
IEC/EN 60947
IEC
Product Tradename
NZM
Product Type
Molded case circuit breaker
Product Sub Type
Thermo-magnetic
Delivery program
Application
Use in unearthed supply systems at 690 V
Type
Circuit breaker
Circuit breaker frame type
NZM1
Number of poles
Three-pole
Amperage Rating
63 A
Release system
Thermomagnetic release
Features
Protection unit
Special features
Terminal capacity hint: Up to 95 mm² can be connected depending on the cable manufacturer.
Rated current = rated uninterrupted current: 63 A
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)
Technical Data - Electrical
Voltage rating
690 V - 690 V
Voltage rating (DC)
450 V DC
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
Instantaneous current setting (Ii) - min
380 A
Instantaneous current setting (Ii) - max
630 A
Overload current setting (Ir) - min
50 A
Overload current setting (Ir) - max
63 A
Short delay current setting (Isd) - min
0 A
Short delay current setting (Isd) - max
0 A
Short-circuit release non-delayed setting - min
378 A
Short-circuit release non-delayed setting - max
630 A
Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 230 V, 50/60 Hz
100 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
220 kA
Rated short-circuit making capacity Icm at 400/415 V, 50/60 Hz
220 kA
Rated short-circuit making capacity Icm at 440 V, 50/60 Hz
154 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
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
Handle type
Rocker lever
Utilization category
A (IEC/EN 60947-2)
Overvoltage category
III
Pollution degree
3
Lifespan, electrical
7500 operations at 690 V AC-1
10000 operations at 415 V AC-1
10000 operations at 400 V AC-1
Direction of incoming supply
As required
Technical Data - Mechanical
Mounting Method
Fixed
Built-in device fixed built-in technique
DIN rail (top hat rail) mounting optional
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 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, constant, to IEC 60068-2-78
Damp heat, cyclic, to IEC 60068-2-30
Special features
Terminal capacity hint: Up to 95 mm² can be connected depending on the cable manufacturer.
Rated current = rated uninterrupted current: 63 A
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)
Lifespan, mechanical
20000 operations
Technical Data - Mechanical - Terminals
Standard terminals
Box terminal
Optional terminals
Connection on rear. Screw terminal. Tunnel terminal
Terminal capacity (control cable)
0.75 mm² - 1.5 mm² (2x)
0.75 mm² - 2.5 mm² (1x)
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
Terminal capacity (aluminum stranded conductor/cable)
25 mm² - 95 mm² (1x) at tunnel terminal
25 mm² - 35 mm² (1x) direct at switch rear-side connection
25 mm² - 35 mm² (2x) direct at switch rear-side connection
Terminal capacity (copper busbar)
M6 at rear-side screw connection
Min. 12 mm x 5 mm direct at switch rear-side connection
Max. 16 mm x 5 mm direct at switch rear-side connection
Terminal capacity (copper solid conductor/cable)
10 mm² - 16 mm² (1x) at box terminal
10 mm² - 16 mm² (1x) direct at switch rear-side connection
16 mm² (1x) at tunnel terminal
6 mm² - 16 mm² (2x) direct at switch rear-side connection
6 mm² - 16 mm² (2x) at box terminal
Terminal capacity (copper stranded conductor/cable)
10 mm² - 70 mm² (1x) direct at switch rear-side connection
6 mm² - 25 mm² (2x) at box terminal
25 mm² (2x) direct at switch rear-side connection
25 mm² - 95 mm² (1x) at 1-hole tunnel terminal
10 mm² - 70 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)
63 A
Equipment heat dissipation, current-dependent
14.17 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
System and cable protection

Technical data ETIM 9.0

Low-voltage industrial components (EG000017) / Power circuit-breaker for trafo/generator/installation protection (EC000228)
Electric engineering, automation, process control engineering / Low-voltage switch technology / Circuit breaker (LV < 1 kV) / Circuit breaker for power transformer, generator and system protection (ecl@ss13-27-37-04-09 [AJZ716018])
Rated permanent current Iu
63 A
Rated voltage
690 - 690 V
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz
50 kA
Overload release current setting
50 - 63 A
Adjustment range short-term delayed short-circuit release
0 - 0 A
Adjustment range undelayed short-circuit release
380 - 630 A
Power loss
14.2 W
Device construction
Built-in device fixed built-in technique
Integrated earth fault protection
No
Type of electrical connection of main circuit
Frame clamp
Suitable for DIN rail (top hat rail) mounting
No
DIN rail (top hat rail) mounting optional
Yes
Number of auxiliary contacts as normally closed contact
0
Number of auxiliary contacts as normally open contact
0
Number of auxiliary contacts as change-over contact
0
With switched-off indicator
No
With integrated under voltage release
No
Number of poles
3
Position of connection for main current circuit
Front side
Type of control element
Rocker lever
Complete device with protection unit
Yes
Motor drive integrated
No
Motor drive optional
No
Degree of protection (IP)
IP20