Eaton 191443 Circuit breaker NZM4, VX-protection, 4 polt, 1250 ampere, 50 kA.
Eaton 191443 Circuit breaker NZM4, VX-protection, 4 polt, 1250 ampere, 50 kA.
| Manufacturer part number (MPN) | 191443 |
| EAN / GTIN | 4015081919550 |
| HS code | 8536.90 |
| Sales unit | pcs |
| Eaton catalogue number | 191443 |
| Depth | 375 mm |
| Height | 170 mm |
| Width | 280 mm |
| Weight | 25.5 kg |
| Compliances | RoHS conform |
| Certifications | IEC; IEC/EN 60947 |
| Functions | Systems, cable, selectivity and generator protection |
| Amperage Rating | 1250 A |
| Application | Use in unearthed supply systems at 415 V |
| Circuit breaker frame type | NZM4 |
| Features | Motor drive optional; Protection unit |
| Number of poles | Four-pole |
| Release system | Electronic release |
| Type | Circuit breaker |
| Ambient operating temperature - max | 70 °C |
| Ambient storage temperature - max | 70 °C |
| Ambient operating temperature - min | -25 °C |
| Equipment heat dissipation, current-dependent | 173.44 W |
| Rated operational current for specified heat dissipation (In) | 1250 A |
| Current rating of neutral conductor | 200% of phase conductor |
| Direction of incoming supply | As required |
| Electrical connection type of main circuit | Screw connection |
| Handle type | Rocker lever |
| Instantaneous current setting (Ii) - max | 37500 A |
| Instantaneous current setting (Ii) - min | 2500 A |
| Isolation | 500 V AC (between auxiliary contacts and main contacts); 300 V AC (between the auxiliary contacts) |
| Lifespan, electrical | 3000 operations at 415 V AC-1; 3000 operations at 400 V AC-1; 20000 operations at 690 V AC-1 |
| Number of operations per hour - max | 60 |
| Overload current setting (Ir) - max | 1250 A |
| Overload current setting (Ir) - min | 500 A |
| Overvoltage category | III |
| Pollution degree | 3 |
| 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 |
| Rated short-circuit making capacity Icm at 240 V | |
| 50/60 Hz | 110 kA |
| Rated short-circuit making capacity Icm at 400/415 V | |
| Rated short-circuit making capacity Icm at 440 V | |
| 50/60 Hz | 77 kA |
| Rated short-circuit making capacity Icm at 525 V | |
| 50/60 Hz | 55 kA |
| Rated short-circuit making capacity Icm at 690 V | |
| 50/60 Hz | 40 kA |
| Rated short-time withstand current (t = 0.3 s) | 19.2 kA |
| Rated short-time withstand current (t = 1 s) | 19.2 kA |
| Short delay current setting (Isd) - max | 10 A |
| Short delay current setting (Isd) - min | 2 A |
| Short-circuit release delayed setting - max | 12500 A |
| Short-circuit release delayed setting - min | 1000 A |
| Short-circuit release non-delayed setting - max | 18750 A |
| Short-circuit release non-delayed setting - min | 2500 A |
| Short-circuit total breaktime | < 25 ms (≦ 415 V); < 35 ms (> 415 V) |
| Utilization category | B (IEC/EN 60947-2) |
| Voltage rating | 690 V - 690 V |
| Climatic proofing | Damp heat, constant, to IEC 60068-2-78; Damp heat, cyclic, to IEC 60068-2-30 |
| 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 insulator and strip terminal); IP10 (tunnel terminal) |
| Lifespan, mechanical | 10000 operations |
| Mounting Method | Built-in device fixed built-in technique; Fixed |
| 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 |
| Protection against direct contact | Finger and back-of-hand proof to DIN EN 50274/VDE 0106 part 110 |
| Shock resistance | 15 g (half-sinusoidal shock 11 ms) |
| Optional terminals | Connection on rear. Strip terminal. Tunnel terminal |
| Standard terminals | Screw terminal |
| Terminal capacity (aluminum stranded conductor/cable) | 50 mm² - 240 mm² (4x) at 4-hole tunnel terminal |
| Terminal capacity (control cable) | 0.75 mm² - 1.5 mm² (2x); 0.75 mm² - 2.5 mm² (1x) |
| Terminal capacity (copper stranded conductor/cable) | 120 mm² - 185 mm² (1x) direct at switch rear-side connection; 50 mm² - 185 mm² (4x) direct at switch rear-side connection |
| MOQ | 1 |