The compact Siemens power contactor is typically used to control motors, plants and to turn on electrical heating systems. The 3RT2047-1NB30 is ideal for the performance range up to 55 kW at AC-3/400 V. The SIRIUS power contactor uses a control supply voltage of 20-33 V AC/DC and features one NC and one contact as auxiliary contact as well as a useful screw-type connection. In size S3, the power contactor is a great solution for all load feeders with the circuit breakers 3RV2011 and 3RV2311.
| Compliance/Standards | IEC 61508-2, EN 60947-1, IEC 60947-4, IEC 61508, IEC 60529, IEC 60947-5, EN 60715, IEC 60068-2, IEC 81346-2 |
| country_of_origin | Germany |
| Depth | 152 mm |
| description | power contactor, AC-3e/AC-3, 110 A, 55 kW / 400 V, 3-pole, 20-33 V AC/DC, 50/60 Hz, with integrated varistor, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S3 |
| Height | 140 mm |
| IP Rating | IP20 |
| IP Rating Detailed | IP20 touch protection on the front according to IEC 60529 finger |
| Modular version | Yes |
| Number of auxiliary contacts as normally closed contact | 1 |
| Number of auxiliary contacts as normally open contact | 1 |
| Number of normally open contacts as main contact | 3 |
| Operating voltage AC 50 Hz | 690 V |
| Operating voltage AC 60 Hz | 1000 V |
| Part Depth (mm) | 81,00mm |
| Part Height (mm) | 168,00mm |
| Part Width (mm) | 161,00mm |
| Rated control supply voltage AC 50 Hz | 20 V |
| Rated control supply voltage AC 60 Hz | 20 V |
| Rated control supply voltage DC | 33 V |
| Rated operation current Ie at AC-1, 400 V | 130 A |
| Rated operation current Ie at AC-3, 400 V | 110 A |
| Rated operation current Ie at AC-4, 400 V | 97 A |
| Rated operation power at AC-3, 400 V | 55 kW |
| Rated operation power NEMA | 55.162409999 kW |
| Type of electrical connection of main circuit | Screw connection |
| Type of Voltage | AC |
| Voltage type for actuating | AC/DC |
| Weight (g) | 1,837 Kg |
| Width | 70 mm |
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