| CIRCUIT-BREAKER, 3-POLE FOR PLANT PROTECTION IN=20A, ICU=18KA/415V WITH OVERCURRENT RELEASE AN N-REL.450A W/O AUXILIARY RELEASE RATED OPERATIONAL VOLTAGE 415V |
| Model |
| Product brand name | SENTRON |
| Design of the overcurrent release | Thermomagnetic |
| General technical data |
| Number of poles | 3 |
| Size of the circuit-breaker | 3VF22 |
| Reference code / acc. to DIN 40719 extended according to IEC 204-2 / acc. to IEC 750 | Q |
| Protection class |
| Protection class IP | IP20 |
| Dissipation |
| Power loss [W] / for rated value of the current / at AC / in hot operating state / per pole | 5.33 W |
| Electricity |
| Continuous current / rated value | 20 A |
| Derating temperature / for the rated value of the continuous current | 40 °C |
| Adjustable pick-up value current | |
| of the current-dependent overload release / Full-scale value | 20 A |
| of instantaneous short-circuit trip unit / initial value | 450 A |
| of instantaneous short-circuit trip unit / Full-scale value | 450 A |
| Main circuit |
| Operating voltage | |
| for main current circuit / at AC / at 50 Hz / maximum | 415 V |
| for main current circuit / at AC / at 60 Hz / maximum | 415 V |
| Auxiliary circuit |
| Number of CO contacts / for auxiliary contacts | 0 |
| Number of NC contacts / for auxiliary contacts | 0 |
| Number of NO contacts / for auxiliary contacts | 0 |
| Suitability |
| Suitability for use | system protection |
| Adjustable parameters |
| Adjustable pick-up value current / of the current-dependent overload release / initial value | 20 A |
| Product details |
| Product component | |
| Auxiliary switch | No |
| Voltage trigger | No |
| undervoltage release | No |
| undervoltage release with leading contact | No |
| Product function |
| Product function | |
| of thermal overload trip unit | Yes |
| Ground fault protection | No |
| for neutral conductors / Short-circuit and overload proof | No |
| Overload protection | Yes |
| Short circuit |
| Operational short-circuit current breaking capacity (Ics) / at 240 V / rated value | 33 kA |
| Maximum short-circuit current breaking capacity (Icu) | |
| at 240 V / rated value | 65 kA |
| at 400 V / rated value | 18 kA |
| at 415 V / rated value | 18 kA |
| Connections |
| Type of electrical connection / for main current circuit | Other |
| Mechanical Design |
| Height | 90 mm |
| Width | 105 mm |
| Depth | 140 mm |
| Mounting type | Built-in unit fixed-mounted version |
| Environmental conditions |
| Ambient temperature | |
| during operation / minimum | -20 °C |
| during operation / maximum | 70 °C |
