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NZMH2-PX250-NA 192579 EATON ELECTRIC Automatic int. NZM2 PXR25, 250A, 3p, screw terminal, UL/CSA
NZMH2-PX250-NA
192579
Y7-192579
EATON - MOELLER
1 Pcs.
Automatic int. NZM2 PXR25, 250A, 3p, screw terminal, UL/CSA
Eaton Moeller series NZMH2 PXR25 circuit breaker, 250 A, 3-pole, Screw terminal, UL/CSA
The xEffect NZM...-PX-NA circuit breaker range with power expert release (PXR) electronic triggering system covers use cases for full range protection with only four compact sizes and is suitable for the IEC and UL/CSA market. The integrated energy measuring function supplies currents, voltages and active energy (kWh) with accuracy class 1 according to IEC 61557-12. Test function and settings via micro USB port directly on the switch. Modular function groups always make mounting flexible and may be supplemented by the comprehensive range of accessories. R.m.s. value measurement and thermal memory.
Automation > Power circuit-breaker for trafo/generator/installation protection
Circuit Breakers NZM
Product condition, packaging, certifications and applicable manufacturer warranty terms are confirmed with the quotation.
More info
▲General specifications
| Product Name | Eaton Moeller series NZM molded case circuit breaker electronic |
| Catalog Number | 192579 |
| Model Code | NZMH2-PX250-NA |
| EAN | 4015081933075 |
| Product Length/Depth | 149 mm |
| Product Height | 195 mm |
| Product Width | 105 mm |
| Product Weight | 2.345 kg |
| Compliances | RoHS conform |
| Certifications | CE marking UL listed UL/CSA IEC 60947-2 IEC UL (Category Control Number DIVQ) UL (File No. E31593) CSA certified CSA-C22.2 No. 5-09 Specially designed for North America UL 489 IEC/EN 60947 CSA (File No. 22086) CSA (Class No. 1432-01) |
Delivery program
| Application | Branch circuits, feeder circuits |
| Type |
|
| Circuit breaker frame type | NZM2 |
| Number of poles | Three-pole |
| Amperage Rating | 250 A |
| Release system | Electronic release |
| Features | Protection unit Motor drive optional |
| Special features | Circuit breaker |
Technical Data - Electrical
| Voltage rating | 690 V - 690 V |
| Rated operating voltage Ue (UL) - max | 600 V |
| Rated impulse withstand voltage (Uimp) at auxiliary contacts | 6000 V |
| Rated impulse withstand voltage (Uimp) at main contacts | 8000 V |
| Rated operational current | 300 A (415 V AC-1, making and breaking capacity) 250 A (660-690 V AC-3, making and breaking capacity) 300 A (380/400 V AC-1, making and breaking capacity) 300 A (690 V AC-1, making and breaking capacity) |
| Rated short-time withstand current (t = 0.3 s) | 1.9 kA |
| Rated short-time withstand current (t = 1 s) | 1.9 kA |
| Amperage Rating | 250 A |
| Instantaneous current setting (Ii) - min | 2 A |
| Instantaneous current setting (Ii) - max | 12 A |
| Overload current setting (Ir) - min | 100 A |
| Overload current setting (Ir) - max | 250 A |
| Short delay current setting (Isd) - min | 500 A |
| Short delay current setting (Isd) - max | 2500 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 | 3000 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 | 37.5 kA |
| Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 690 V, 50/60 Hz | 5 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 | 105 kA |
| Rated short-circuit making capacity Icm at 690 V, 50/60 Hz | 40 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 | 120 |
| Handle type | Rocker lever |
| Utilization category | A (IEC/EN 60947-2) |
| Overvoltage category | III |
| Pollution degree | 3 |
| Lifespan, electrical | 10000 operations at 400 V AC-1 6500 operations at 400 V AC-3 5000 operations at 690 V AC-3 7500 operations at 690 V AC-1 6500 operations at 415 V AC-3 |
| Direction of incoming supply | As required |
Technical Data - Mechanical
| Mounting Method | Built-in device fixed built-in technique Fixed DIN rail (top hat rail) mounting optional |
| Mounting Method | Built-in device fixed built-in technique Fixed DIN rail (top hat rail) mounting optional |
| Degree of protection | IP20 (basic degree of protection, in the operating controls area) IP20 |
| 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) |
| 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 | Circuit breaker |
| Lifespan, mechanical | 20000 operations |
Technical Data - Mechanical - Terminals
| Standard terminals | Screw terminal |
| Terminal capacity (copper busbar) | M8 at rear-side screw connection |
| Terminal capacity (copper solid conductor/cable) | 16 mm² (1x) at tunnel terminal |
Design verification as per IEC/EN 61439 - technical data
| Rated operational current for specified heat dissipation (In) | 250 A |
| Equipment heat dissipation, current-dependent | 51.56 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 | Systems, cable, selectivity and generator protection |
| Feature Name | Feature Value |
|---|---|
| Rated permanent current Iu (EF001389) | 250 A |
| Rated voltage (EF003977) | 690 V |
| Rated short-circuit breaking capacity Icu at 400 V, 50 Hz (EF007048) | 150 kA |
| Overload release current setting (EF002336) | 100 A |
| Adjustment range short-term delayed short-circuit release (EF007129) | 500 A |
| Adjustment range undelayed short-circuit release (EF007131) | 2 A |
| Device construction (EF008240) | Built-in device fixed built-in technique |
| Integrated earth fault protection (EF007296) | No |
| Type of electrical connection of main circuit (EF006819) | Screw connection |
| Suitable for DIN rail (top hat rail) mounting (EF007250) | No |
| DIN rail (top hat rail) mounting optional (EF008904) | Yes |
| Number of auxiliary contacts as normally closed contact (EF001377) | 0 |
| Number of auxiliary contacts as normally open contact (EF001376) | 0 |
| Number of auxiliary contacts as change-over contact (EF003531) | 0 |
| With switched-off indicator (EF007006) | No |
| With integrated under voltage release (EF001390) | No |
| Number of poles (EF001391) | 3 |
| Position of connection for main current circuit (EF006671) | Front |
| Type of control element (EF006976) | Rocker lever |
| Complete device with protection unit (EF008906) | Yes |
| Motor drive integrated (EF006697) | No |
| Motor drive optional (EF007386) | Yes |
| Degree of protection (IP) (EF005474) | IP20 |