Eaton Moeller series NZM - Molded Case Circuit Breaker. NZM3 PXR25, class 1, 250A, 4p, variable, Screw terminal, earth-fault protection, ARMS and zone selectivity, H, 3
| Product Name |
Eaton Moeller series NZM molded case circuit breaker electronic
|
| Catalog Number |
192292
|
| EAN |
4015081928439
|
| Product Length/Depth |
275 mm
|
| Product Height |
120.5 mm
|
| Product Width |
185 mm
|
| Product Weight |
8.45 kg
|
| Compliances |
RoHS conform
|
| Certifications |
IEC
IEC/EN 60947 |
| Model Code |
NZMH3-4-PX250/VAR-TAZ
|
| Application |
Use in unearthed supply systems at 690 V
|
| Type |
Circuit breaker
|
| Circuit breaker frame type |
NZM3
|
| Number of poles |
Four-pole
|
| Amperage Rating |
250 A
|
| Release system |
Electronic release
|
| Features |
Motor drive optional
Protection unit |
| Special features |
|
| Voltage rating |
690 V - 690 V
|
| Rated impulse withstand voltage (Uimp) at auxiliary contacts |
6000 V
|
| Rated impulse withstand voltage (Uimp) at main contacts |
8000 V
|
| Current rating of neutral conductor |
0 - 60% - 100% of phase conductor
|
| Rated short-time withstand current (t = 0.3 s) |
3.3 kA
|
| Rated short-time withstand current (t = 1 s) |
3.3 kA
|
| Amperage Rating |
250 A
|
| Earth-fault current setting (Ig) - min |
50 x In
|
| Earth-fault current setting (Ig) - max |
250 x In
|
| Instantaneous current setting (Ii) - min |
2 A
|
| Instantaneous current setting (Ii) - max |
18 A
|
| Overload current setting (Ir) - min |
100 A
|
| Overload current setting (Ir) - max |
250 A
|
| Short delay current setting (Isd) - min |
2 A
|
| Short delay current setting (Isd) - max |
10 A
|
| Short-circuit release delayed setting - min |
200 A
|
| Short-circuit release delayed setting - max |
2500 A
|
| Short-circuit release non-delayed setting - min |
500 A
|
| Short-circuit release non-delayed setting - max |
4500 A
|
| Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 230 V, 50/60 Hz |
150 kA
|
| Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 400/415 V, 50/60 Hz |
150 kA
|
| Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 440 V, 50/60 Hz |
130 kA
|
| Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 525 V, 50/60 Hz |
33 kA
|
| Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 690 V, 50/60 Hz |
9 kA
|
| Rated short-circuit making capacity Icm at 240 V, 50/60 Hz |
330 kA
|
| Rated short-circuit making capacity Icm at 400/415 V, 50/60 Hz |
330 kA
|
| Rated short-circuit making capacity Icm at 440 V, 50/60 Hz |
286 kA
|
| Rated short-circuit making capacity Icm at 525 V, 50/60 Hz |
143 kA
|
| Rated short-circuit making capacity Icm at 690 V, 50/60 Hz |
74 kA
|
| Short-circuit total breaktime |
< 10 ms
|
| 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 |
60
|
| Handle type |
Rocker lever
|
| Utilization category |
A (IEC/EN 60947-2)
|
| Overvoltage category |
III
|
| Pollution degree |
3
|
| Lifespan, electrical |
3000 operations at 690 V AC-1
5000 operations at 415 V AC-1 5000 operations at 400 V AC-1 |
| Direction of incoming supply |
As required
|
| Mounting Method |
Built-in device fixed built-in technique
Fixed |
| Mounting Method |
Built-in device fixed built-in technique
Fixed |
| Degree of protection |
IP20 (basic degree of protection, in the operating controls area)
IP20 |
| 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, constant, to IEC 60068-2-78
Damp heat, cyclic, to IEC 60068-2-30 |
| Special features |
|
| Lifespan, mechanical |
15000 operations
|
| Standard terminals |
Screw terminal
|
| Optional terminals |
Box terminal. Connection on rear. 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) |
16 mm² (1x) at tunnel terminal
|
| Terminal capacity (aluminum stranded conductor/cable) |
50 mm² - 240 mm² (2x) at 2-hole tunnel terminal
50 mm² - 240 mm² (1x) at 2-hole tunnel terminal 25 mm² - 185 mm² (1x) at tunnel terminal |
| Terminal capacity (copper busbar) |
Max. 30 mm x 10 mm + 30 mm x 5 mm direct at switch rear-side connection
M10 at rear-side screw connection Max. 10 mm x 50 mm (2x) at rear-side width extension Min. 20 mm x 5 mm direct at switch rear-side connection |
| Terminal capacity (copper solid conductor/cable) |
16 mm² (1x) at tunnel terminal
16 mm² (1x) direct at switch rear-side connection 16 mm² (2x) at box terminal 300 mm² (2x) at rear-side width extension 16 mm² (2x) direct at switch rear-side connection |
| Terminal capacity (copper stranded conductor/cable) |
25 mm² - 240 mm² (1x) direct at switch rear-side connection
25 mm² - 240 mm² (2x) direct at switch rear-side connection 35 mm² - 240 mm² (1x) at box terminal 25 mm² - 120 mm² (2x) at box terminal 16 mm² - 185 mm² (1x) at 1-hole tunnel terminal |
| Terminal capacity (copper strip) |
Max. 8 segments of 24 mm x 1 mm (2x) at box terminal
Max. 10 segments of 32 mm x 1 mm + 5 segments of 32 mm x 1 mm at rear-side connection (punched) 10 segments of 50 mm x 1 mm (2x) at rear-side width extension Min. 6 segments of 16 mm x 0.8 mm at rear-side connection (punched) Min. 6 segments of 16 mm x 0.8 mm at box terminal Max. 10 segments of 24 mm x 1 mm + 5 segments of 24 mm x 1 mm |
| Rated operational current for specified heat dissipation (In) |
250 A
|
| Equipment heat dissipation, current-dependent |
28.13 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
|
| 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 |
Zone selectivity
Integrated earth fault protection ARMS maintenance mode Systems, cable, selectivity and generator protection Earth-fault protection |
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