| WITHDRAW. NON-AUT. CIRCUIT-B. 4-POLE, SIZE I IN=1600A TO 500V, AC50/60HZ ICU=66KA AT 500V ONLY MOD-CENTER |
| Model |
| product brandname | SENTRON |
| Product designation | 3WT air circuit breaker |
| Design of the product | IEC 60947-2 |
| Type of the driving mechanism | Manual operating mechanism with stored energy feature, with mechanical closing |
| Type of the driving mechanism / motor drive | No |
| Design of the overcurrent release | Without, version old |
| General technical data |
| Number of poles | 4 |
| Field of application | NON-AUTOMATIC CIRCUIT-BREAKER |
| Size of the circuit-breaker | I |
| Electrical endurance (switching cycles) / typical | 10 000 |
| Usage category | A |
| circuit-breaker / Design | 3WT8 |
| Mechanical service life (switching cycles) / typical | 16 000 |
| Equipment marking / acc. to DIN 40719 extended according to IEC 204-2 / acc. to IEC 750 | Q |
| Voltage |
| Rated operational voltage Ue / max. | 500 V |
| Rated insulation voltage Ui | 1 000 V |
| Insulation voltage / at AC / rated value | 1 000 V |
| Surge voltage resistance / rated value | 12 kV |
| Protection class |
| Protection class IP | IP20 |
| Dissipation |
| Power loss [W] | |
| maximum | 140 W |
| Electricity |
| rated current In | |
| max. | 1 600 A |
| at 40 Cel | 1 600 A |
| at 50 Cel | 1 600 A |
| Continuous current / rated value | 1 600 A |
| Derating temperature / for the rated value of the continuous current | 50 °C |
| Short-time current resistance (Icw) | |
| limited to 0.5 s / rated value | 50 kA |
| limited to 1 s / rated value | 50 kA |
| limited to 2 s / rated value | 30 kA |
| limited to 3 s / rated value | 25 kA |
| Main circuit |
| Operating frequency / 1 / rated value | 50 Hz |
| Operating voltage | |
| for main current circuit / at AC / at 50 Hz / maximum | 500 V |
| for main current circuit / at AC / at 60 Hz / maximum | 500 V |
| Operating current | |
| at 40 °C / rated value | 1 600 A |
| at 50 °C / rated value | 1 600 A |
| at 60 °C / rated value | 1 500 A |
| at 70 °C / rated value | 1 350 A |
| Auxiliary circuit |
| Operating current / of auxiliary contacts / at AC-15 / at 230 V | 6 A |
| Suitability |
| Suitability for use | |
| Disconnecting means | Yes |
| Product details |
| Product component | |
| Trip indicator | No |
| Auxiliary switch | Yes |
| Voltage trigger | No |
| undervoltage release | No |
| Product extension / optional / motor drive | Yes |
| Product function |
| Product function | |
| Overload protection | No |
| Accessories |
| accessories | No further Z accessories |
| Short circuit |
| Operational short-circuit current breaking capacity (Ics) | |
| at 240 V / rated value | 66 kA |
| at 415 V / rated value | 66 kA |
| at 500 V / rated value | 66 kA |
| Maximum short-circuit current breaking capacity (Icu) | |
| at 240 V / rated value | 66 kA |
| at 400 V / rated value | 66 kA |
| at 415 V / rated value | 66 kA |
| at 440 V / rated value | 66 kA |
| at 480 V / rated value | 66 kA |
| at 500 V / rated value | 66 kA |
| Connections |
| Arrangement of electrical connectors / for main current circuit | Laminated contacts in guide frame |
| Type of connection, main circuit | LAMINATED CONTACT IN GUIDE FRAME |
| Type of electrical connection / for main current circuit | busbar connection |
| Mechanical Design |
| Type of mounting | WITHDRAWABLE UNIT |
| Mounting position | with vertical mounting surface +/-180° rotatable, with vertical mounting surface +/- 30° tiltable to the front and back |
| Mounting type | drawer unit |
| Environmental conditions |
| Ambient temperature | |
| during operation / minimum | -20 °C |
| during operation / maximum | 70 °C |
| during storage / minimum | -40 °C |
| during storage / maximum | 80 °C |
