| Manufacturer | Eaton |
| Product family | xEffect AZ |
| Type designation | AZ-3-C125 |
| Manufacturer part number (MPN) | AZ-3-C125 |
| EAN / GTIN | 4015082118112 |
| Eaton / SAP material no. | 1200283633 |
| Poles | 3P |
| Tripping characteristic | Type C |
| Rated current In | 125 A |
| Rated ultimate breaking capacity Icu | up to 25 kA |
| Rated operational voltage Ue | 230/400 V AC |
| Mounting | DIN rail (35 mm) |
| Standard | IEC/EN 60947-2 |
| HS code | 8536.20 |
| Sales unit | pcs |
| Eaton catalogue number | 211811 |
| Depth | 90 mm |
| Height | 75 mm |
| Width | 81 mm |
| Weight | 0.658 kg |
| Compliances | RoHS conform |
| Certifications | IEC/EN 60947-2; EN45545-2; IEC 61373 |
| Current limiting class | 3 |
| Features | Additional equipment possible |
| Special features | Ambient temperature hint: a 1 °C increase results in a 0.5% linear reduction of current carrying capacity |
| Used with | Miniature circuit breaker; AZ |
| Amperage Rating | 125 A |
| Application | Switchgear for industrial and advanced commercial applications xEffect - Switchgear for industrial and advanced commercial applications |
| Number of poles | Three-pole |
| Number of poles (protected) | 3 |
| Number of poles (total) | 3 |
| Release characteristic | C |
| Type | AZ Miniature circuit breaker |
| Ambient operating temperature - max | 55 °C |
| Ambient operating temperature - min | -25 °C |
| Equipment heat dissipation, current-dependent | 35.67 W; 35.7 W |
| Heat dissipation capacity | 0 W |
| Heat dissipation per pole, current-dependent | 11.9 W |
| Rated operational current for specified heat dissipation (In) | 125 A |
| Static heat dissipation, non-current-dependent | 0 W |
| Admissible back-up fuse - max | 200 A gL/gG |
| Direction of incoming supply | As required |
| Frequency rating - max | 60 Hz |
| Frequency rating - min | 50 Hz |
| Lifespan, electrical | 10000 operations |
| Operational switching capacity | 20 kA |
| Overvoltage category | III |
| Pollution degree | 2 |
| Rated impulse withstand voltage (Uimp) | 4 kV |
| Rated insulation voltage (Ui) | 440 V |
| Rated operational voltage (Ue) - max | 400 V |
| Rated short-circuit breaking capacity (IEC 60947-2)- Icu at 230 V | 15 kA |
| Rated short-circuit breaking capacity (IEC 60947-2)- Icu at 400 V | 15 kA |
| Rated switching capacity (IEC/EN 60947-2) | 15 kA |
| Selectivity class | 3 |
| Voltage rating | 230 V AC / 400 V AC |
| Voltage rating at DC | 60 V DC (per pole) |
| Voltage type | AC |
| Built-in depth | 75 mm |
| Connectable conductor cross section (multi-wired) - max | 50 mm² |
| Connectable conductor cross section (multi-wired) - min | 2.5 mm² |
| Connectable conductor cross section (solid-core) - max | 50 mm² |
| Connectable conductor cross section (solid-core) - min | 2.5 mm² |
| Degree of protection | IP40 (when fitted); IP20 |
| Enclosure width | 90 mm |
| Frame | 45 mm |
| Mounting Method | Top-hat rail IEC/EN 60715 |
| Mounting width | 27 mm |
| Mounting width per pole | 27 mm |
| Terminal capacity (control cable) | 2.5 mm² - 50 mm² |
| Terminal protection | Finger and hand touch safe, DGUV VS3, EN 50274 |
| Terminals (top and bottom) | Lift terminals |
| Width in number of modular spacings | 4.5 |
