| Manufacturer part number (MPN) | NZMN3-4-A320-SVE |
| Series | Eaton NZM3 (Moeller series NZM) |
| Type | Molded-case circuit breaker (MCCB) |
| Breaking-capacity class | N (standard breaking capacity) |
| Number of poles | 4-Pole |
| Rated current (In) | 320 A |
| Frame size | NZM3 (up to 630 A) |
| Rated operational voltage (Ue) | 690 V AC |
| Rated insulation voltage (Ui) | 800 V |
| Rated ultimate short-circuit breaking capacity (Icu) at 400/415 V AC | 50 kA |
| Trip unit / release | Thermomagnetic release — adjustable thermal overload and electromagnetic short-circuit protection |
| Utilization category | A |
| Suitable for isolation | Yes |
| Standard | IEC/EN 60947-2 |
| Configuration | Plug-in (withdrawable) version |
| EAN / GTIN | 4015081649860 |
| HS code | 8536.20 |
| Sales unit | pcs |
| Eaton catalogue number | 168508 |
| Depth | 335 mm |
| Height | 215.2 mm |
| Width | 185 mm |
| Weight | 8.81 kg |
| Compliances | RoHS conform |
| Accessories required | NZM3-XSVS |
| Amperage Rating | 320 A |
| Application | Use in unearthed supply systems at 690 V |
| Features | Motor drive optional; Protection unit |
| Special features | Rated current = rated uninterrupted current: 320 A |
| Ambient operating temperature - max | 70 °C |
| Ambient storage temperature - max | 70 °C |
| Ambient operating temperature - min | -25 °C |
| Ambient storage temperature - min | -40 °C |
| Equipment heat dissipation, current-dependent | 94 W |
| Current rating of neutral conductor | 200% of phase conductor |
| Electrical connection type of main circuit | Screw connection |
| Handle type | Rocker lever |
| Instantaneous current setting (Ii) - max | 19200 A |
| Instantaneous current setting (Ii) - min | 1920 A |
| Overload current setting (Ir) | 250 A - 320 A |
| Overload current setting (Ir) - max | 320 A |
| Overload current setting (Ir) - min | 250 A |
| Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 500 V DC | 30 kA |
| Rated short-circuit breaking capacity Ics (IEC/EN 60947) at 750 V DC | 30 kA |
| Rated short-circuit making capacity Icm at 240 V, 50/60 Hz | 330 kA |
| Short-circuit release non-delayed setting - max | 3200 A |
| Short-circuit release non-delayed setting - min | 1920 A |
| Voltage rating | 690 V - 690 V |
| Degree of protection | IP20 |
| Mounting Method | Built-in device plug-in technique |
| 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 |
| Optional terminals | Box terminal. Connection on rear. Tunnel terminal |
| Terminal capacity (copper busbar) | Max. 30 mm x 10 mm + 30 mm x 5 mm direct at switch rear-side connection |
| Terminal capacity (copper strip) | 10 segments of 50 mm x 1 mm (2x) at rear-side width extension; Max. 10 segments of 32 mm x 1 mm + 5 segments of 32 mm x 1 mm at rear-side connection (punched); Min. 6 segments of 16 mm x 0.8 mm at rear-side connection (punched) |
| Document Name | Description Action |
