Properties
| Version | Miniature circuit breaker, Characteristic curve: B, Number of poles: 3, 20 A, white |
| Order No. | 2477700000 |
| Type | MCB 489 3P B 20A ACDC |
| GTIN (EAN) | 4050118492293 |
| Qty. | 4 items |
| Depth | 60.3 mm |
| Depth (inches) | 2.374 inch |
| Height | 116 mm |
| Height (inches) | 4.567 inch |
| Width | 52.9 mm |
| Width (inches) | 2.083 inch |
| Net weight | 249.75 g |
| Humidity | 40 °C / 95 % rel. humidity, no condensation |
| Voltage type | AC/DC |
| Rated AC voltage | 480,277 V |
| Rated current | 20 A |
| Interrupting capacity | 10,000 A |
| Characteristic curve | B |
| Number of poles | 3 |
| Version circuit breaker | Thermomagnetic |
| Typical lifetime in cycles mechanical | 20000 |
| Typical lifetime in cycles electrical | 6000 |
| Type of mounting | DIN rail |
| Type of fixing | Rail mounting |
| Vibration | according to IEC 60068-2-6 |
| Shock | according to IEC 60068-2-27 |
| Colour | white |
| Engineering Data | [CAD data -- STEP](https://mdcop.weidmueller.com/mediadelivery/asset/900_316184) |
| Catalogues | [Catalogues in PDF-format](LINK/Catalog.html) |
| ETIM 6.0 | EC000042 |
| ETIM 7.0 | EC000042 |
| ETIM 8.0 | EC000042 |
| ETIM 9.0 | EC000042 |
| ECLASS 9.0 | 27-14-19-01 |
| ECLASS 9.1 | 27-14-19-01 |
| ECLASS 10.0 | 27-14-19-01 |
| ECLASS 11.0 | 27-14-19-01 |
| ECLASS 12.0 | 27-14-19-01 |
| ECLASS 13.0 | 27-14-19-01 |
| ECLASS 14.0 | 27-14-19-01 |