| Contactor, Size 14, 3-pole, AC-3, 335kW, 400/380 V (1000 V) Auxiliary switch 44 (4NO+4NC) AC operation 500...600 V AC 50/60 Hz |
| product designation | Vacuum contactor |
| product type designation | 3TF6 |
| General technical data |
| size of contactor | 14 |
| product extension | |
| ● function module for communication | No |
| ● auxiliary switch | No |
| insulation voltage | |
| ● of main circuit with degree of pollution 3 rated value | 1 000 V |
| ● of auxiliary circuit with degree of pollution 3 rated value | 690 V |
| surge voltage resistance | |
| ● of main circuit rated value | 8 kV |
| ● of auxiliary circuit rated value | 6 kV |
| maximum permissible voltage for safe isolation in networks with grounded star point | |
| ● between auxiliary and auxiliary circuit | 300 V |
| ● between main and auxiliary circuit | 500 V |
| shock resistance at rectangular impulse | |
| ● at AC | 8.1g / 5 ms, 4.7g / 10 ms |
| shock resistance with sine pulse | |
| ● at AC | 12.8g / 5 ms, 7.4g / 10 ms |
| mechanical service life (switching cycles) | |
| ● of contactor typical | 5 000 000 |
| reference code according to IEC 81346-2 | Q |
| Substance Prohibitance (Date) | 03/01/2017 |
| Ambient conditions |
| installation altitude at height above sea level maximum | 2 000 m |
| ambient temperature | |
| ● during operation | -25 ... +55 °C |
| ● during storage | -55 ... +80 °C |
| relative humidity minimum | 10 % |
| relative humidity during operation | 10 ... 95 % |
| relative humidity at 55 °C according to IEC 60068-2-30 maximum | 95 % |
| Main circuit |
| number of poles for main current circuit | 3 |
| number of NO contacts for main contacts | 3 |
| number of NC contacts for main contacts | 0 |
| type of voltage for main current circuit | AC |
| operating voltage | |
| ● at AC-3 rated value maximum | 1 000 V |
| operational current | |
| ● at AC-1 | |
| — up to 690 V at ambient temperature 40 °C rated value | 700 A |
| — up to 690 V at ambient temperature 55 °C rated value | 630 A |
| — up to 1000 V at ambient temperature 55 °C rated value | 450 A |
| ● at AC-3 | |
| — at 400 V rated value | 630 A |
| — at 500 V rated value | 630 A |
| — at 690 V rated value | 630 A |
| — at 1000 V rated value | 435 A |
| ● at AC-4 at 400 V rated value | 610 A |
| ● at AC-6a | |
| — up to 500 V for current peak value n=20 rated value | 513 A |
| — up to 690 V for current peak value n=20 rated value | 513 A |
| — up to 1000 V for current peak value n=20 rated value | 435 A |
| ● at AC-6a | |
| — up to 400 V for current peak value n=30 rated value | 342 A |
| — up to 500 V for current peak value n=30 rated value | 342 A |
| — up to 690 V for current peak value n=30 rated value | 342 A |
| — up to 1000 V for current peak value n=30 rated value | 342 A |
| connectable conductor cross-section in main circuit at AC-1 | |
| ● at 40 °C minimum permissible | 480 mm² |
| operational current for approx. 200000 operating cycles at AC-4 | |
| ● at 400 V rated value | 300 A |
| ● at 690 V rated value | 300 A |
| operating power | |
| ● at AC-3 | |
| — at 230 V rated value | 200 kW |
| — at 400 V rated value | 335 kW |
| — at 690 V rated value | 600 kW |
| — at 1000 V rated value | 600 kW |
| operating apparent power at AC-6a | |
| ● up to 400 V for current peak value n=20 rated value | 338 kVA |
| ● up to 690 V for current peak value n=20 rated value | 586 kVA |
| ● up to 1000 V for current peak value n=20 rated value | 752 kVA |
| operating apparent power at AC-6a | |
| ● up to 400 V for current peak value n=30 rated value | 226 kVA |
| ● up to 690 V for current peak value n=30 rated value | 390 kVA |
| ● up to 1000 V for current peak value n=30 rated value | 592 kVA |
| thermal short-time current limited to 10 s | 5 040 A |
| power loss [W] at AC-3 at 400 V for rated value of the operational current per conductor | 45 W |
| no-load switching frequency at AC | 2 000 1/h |
| operating frequency | |
| ● at AC-1 maximum | 700 1/h |
| ● at AC-2 at AC-3 maximum | 200 1/h |
| Control circuit/ Control |
| type of voltage of the control supply voltage | AC |
| control supply voltage at AC | |
| ● at 50 Hz rated value | 500 ... 600 V |
| ● at 60 Hz rated value | 500 ... 600 V |
| operating range factor control supply voltage rated value of magnet coil at AC | |
| ● at 50 Hz | 0.8 ... 1.1 |
| ● at 60 Hz | 0.8 ... 1.1 |
| apparent pick-up power of magnet coil at AC | |
| ● at 50 Hz | 1 200 VA |
| ● at 60 Hz | 1 200 VA |
| inductive power factor with closing power of the coil | |
| ● at 50 Hz | 1 |
| ● at 60 Hz | 1 |
| apparent holding power of magnet coil at AC | |
| ● at 50 Hz | 13.5 VA |
| ● at 60 Hz | 13.5 VA |
| inductive power factor with the holding power of the coil | |
| ● at 50 Hz | 0.15 |
| ● at 60 Hz | 0.15 |
| closing delay | |
| ● at AC | 70 ... 120 ms |
| opening delay | |
| ● at AC | 70 ... 100 ms |
| arcing time | 10 ... 15 ms |
| control version of the switch operating mechanism | Standard A1 - A2 |
| Auxiliary circuit |
| number of NC contacts for auxiliary contacts | |
| ● attachable | 4 |
| ● instantaneous contact | 4 |
| number of NO contacts for auxiliary contacts | |
| ● attachable | 4 |
| ● instantaneous contact | 4 |
| operational current at AC-12 maximum | 10 A |
| operational current at AC-15 | |
| ● at 230 V rated value | 5.6 A |
| ● at 400 V rated value | 3.6 A |
| ● at 500 V rated value | 2.5 A |
| ● at 690 V rated value | 2.3 A |
| operational current at DC-12 at 440 V rated value | 0.33 A |
| operational current at DC-12 | |
| ● at 24 V rated value | 10 A |
| ● at 48 V rated value | 10 A |
| ● at 110 V rated value | 3.2 A |
| ● at 125 V rated value | 2.5 A |
| ● at 220 V rated value | 0.9 A |
| ● at 600 V rated value | 0.22 A |
| operational current at DC-13 | |
| ● at 24 V rated value | 10 A |
| ● at 48 V rated value | 5 A |
| ● at 110 V rated value | 1.14 A |
| ● at 125 V rated value | 0.98 A |
| ● at 220 V rated value | 0.48 A |
| ● at 600 V rated value | 0.07 A |
| contact reliability of auxiliary contacts | one incorrect switching operation of 100 million switching operations (17 V, 5 mA) |
| UL/CSA ratings |
| full-load current (FLA) for 3-phase AC motor | |
| ● at 480 V rated value | 630 A |
| ● at 600 V rated value | 630 A |
| yielded mechanical performance [hp] | |
| ● for 3-phase AC motor | |
| — at 200/208 V rated value | 231 hp |
| — at 220/230 V rated value | 266 hp |
| — at 460/480 V rated value | 530 hp |
| — at 575/600 V rated value | 664 hp |
| contact rating of auxiliary contacts according to UL | A600 / Q600 |
| Short-circuit protection |
| design of the fuse link | |
| ● for short-circuit protection of the main circuit | |
| — with type of coordination 1 required | gG: 1000 A (690 V, 100 kA) |
| — with type of assignment 2 required | gG: 500 A (690 V, 100 kA), aM: 630 A (690 V, 50 kA), BS88: 500 A (415 V, 50 kA) |
| ● for short-circuit protection of the auxiliary switch required | fuse gG: 10 A |
| Installation/ mounting/ dimensions |
| mounting position | with vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back |
| fastening method | screw fixing |
| ● side-by-side mounting | Yes |
| height | 276 mm |
| width | 230 mm |
| depth | 237 mm |
| required spacing | |
| ● with side-by-side mounting | |
| — forwards | 20 mm |
| — upwards | 10 mm |
| — downwards | 10 mm |
| — at the side | 10 mm |
| ● for grounded parts | |
| — forwards | 20 mm |
| — upwards | 10 mm |
| — at the side | 10 mm |
| — downwards | 10 mm |
| ● for live parts | |
| — forwards | 20 mm |
| — upwards | 10 mm |
| — downwards | 10 mm |
| — at the side | 10 mm |
| Connections/ Terminals |
| type of electrical connection | |
| ● for main current circuit | Connection bar |
| ● for auxiliary and control circuit | screw-type terminals |
| ● at contactor for auxiliary contacts | Screw-type terminals |
| width of connection bar | 30 mm |
| thickness of connection bar | 6 mm |
| diameter of holes | 11 mm |
| number of holes | 1 |
| type of connectable conductor cross-sections | |
| ● for main contacts | |
| — stranded | 70 ... 240 mm² |
| — finely stranded with core end processing | 50 ... 240 mm² |
| ● at AWG cables for main contacts | 2/0 ... 500 kcmil |
| connectable conductor cross-section for main contacts | |
| ● finely stranded with core end processing | 240 ... 50 mm² |
| connectable conductor cross-section for auxiliary contacts | |
| ● solid or stranded | 0.5 ... 2.5 mm² |
| ● finely stranded with core end processing | 0.5 ... 2.5 mm² |
| type of connectable conductor cross-sections | |
| ● for auxiliary contacts | |
| — solid | 2x (0.5 ... 1.0 mm²), 2x (1.0 ... 2.5 mm²) |
| — finely stranded with core end processing | 2x (0.5 ... 1.0 mm²), 2x (0.75 ... 2.5 mm²) |
| ● at AWG cables for auxiliary contacts | 2x (18 ... 12) |
| AWG number as coded connectable conductor cross section | |
| ● for main contacts | 500 |
| ● for auxiliary contacts | 18 ... 12 |
| Safety related data |
| product function | |
| ● mirror contact according to IEC 60947-4-1 | Yes; One NC contact each must be connected in series for the right and left auxiliary switch block respectively |
| ● positively driven operation according to IEC 60947-5-1 | No |
| protection class IP on the front according to IEC 60529 | IP00; IP20 with cover |
| touch protection on the front according to IEC 60529 | finger-safe, for vertical contact from the front with cover |
| Certificates/ approvals |
Downloads and manuals |
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| Further information |
Information- and Downloadcenter (Catalogs, Brochures,…) |
Industry Mall (Online ordering system) |
Cax online generator |
Service&Support (Manuals, Certificates, Characteristics, FAQs,...) |
Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...) |
Characteristic: Tripping characteristics, I²t, Let-through current |
Further characteristics (e.g. electrical endurance, switching frequency) |
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| last modified: | 7/2/2021 |
Date
5/13/2022 | Subject to change without notice
© Copyright Siemens 2022 |
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