| Contactor, Size 4, 2-pole, DC-3 and 5, 75 A Auxiliary switch 22 (2 NO + 2 NC) 24 V AC 50 Hz/29 V AC 60 Hz AC operation |
| product designation | Contactor |
| product type designation | 3TC |
| General technical data |
| size of contactor | 4 |
| product extension | |
| ● function module for communication | No |
| ● auxiliary switch | Yes |
| insulation voltage rated value | 800 V |
| maximum permissible voltage for safe isolation between coil and main contacts according to EN 60947-1 | 300 V |
| shock resistance at rectangular impulse | |
| ● at AC | 10g / 5 ms, 5g / 10 ms |
| mechanical service life (switching cycles) | |
| ● of contactor typical | 10 000 000 |
| ● of the contactor with added auxiliary switch block typical | 10 000 000 |
| reference code according to IEC 81346-2 | Q |
| Substance Prohibitance (Date) | 03/01/2017 |
| Ambient conditions |
| ambient temperature | |
| ● during operation | -25 ... +55 °C |
| ● during storage | -50 ... +80 °C |
| relative humidity minimum | 10 % |
| relative humidity at 55 °C according to IEC 60068-2-30 maximum | 95 % |
| Main circuit |
| number of poles | 2 |
| number of poles for main current circuit | 2 |
| number of NO contacts for main contacts | 2 |
| number of NC contacts for main contacts | 0 |
| type of voltage | DC |
| operational current | |
| ● at 1 current path at DC-1 | |
| — at 24 V rated value | 75 A |
| — at 110 V rated value | 75 A |
| — at 220 V rated value | 75 A |
| ● with 2 current paths in series at DC-1 | |
| — at 24 V rated value | 75 A |
| — at 110 V rated value | 75 A |
| — at 220 V rated value | 75 A |
| — at 440 V rated value | 75 A |
| — at 600 V rated value | 75 A |
| — at 750 V rated value | 75 A |
| ● at 1 current path at DC-3 at DC-5 | |
| — at 24 V rated value | 75 A |
| — at 110 V rated value | 75 A |
| — at 220 V rated value | 75 A |
| ● with 2 current paths in series at DC-3 at DC-5 | |
| — at 24 V rated value | 75 A |
| — at 110 V rated value | 75 A |
| — at 220 V rated value | 75 A |
| — at 440 V rated value | 75 A |
| — at 600 V rated value | 75 A |
| — at 750 V rated value | 75 A |
| operating power | |
| ● at DC-1 | |
| — at 110 V rated value | 8.2 kW |
| — at 220 V rated value | 16.5 kW |
| — at 440 V rated value | 33 kW |
| — at 750 V rated value | 56 kW |
| ● at DC-3 at DC-5 | |
| — at 110 V rated value | 6.5 kW |
| — at 220 V rated value | 13 kW |
| — at 440 V rated value | 27 kW |
| — at 600 V rated value | 38 kW |
| — at 750 V rated value | 45 kW |
| operating frequency | |
| ● at DC-1 maximum | 1 000 1/h |
| ● at DC-3 maximum | 600 1/h |
| ● at DC-5 maximum | 600 1/h |
| Control circuit/ Control |
| type of voltage of the control supply voltage | AC |
| control supply voltage at AC | |
| ● at 50 Hz rated value | 24 V |
| ● at 60 Hz rated value | 29 V |
| operating range factor control supply voltage rated value of magnet coil at AC | |
| ● at 50 Hz | 0.8 ... 1.1 |
| apparent pick-up power of magnet coil at AC | 300 VA |
| ● at 50 Hz | 300 VA |
| ● at 60 Hz | 365 VA |
| inductive power factor with closing power of the coil | 0.5 |
| ● at 50 Hz | 0.5 |
| ● at 60 Hz | 0.45 |
| apparent holding power of magnet coil at AC | 26 VA |
| ● at 50 Hz | 26 VA |
| ● at 60 Hz | 35 VA |
| inductive power factor with the holding power of the coil | 0.24 |
| ● at 50 Hz | 0.24 |
| ● at 60 Hz | 0.26 |
| arcing time | 20 ... 30 ms |
| Auxiliary circuit |
| number of NC contacts for auxiliary contacts | 2 |
| ● instantaneous contact | 2 |
| number of NO contacts for auxiliary contacts | 2 |
| ● instantaneous contact | 2 |
| number of CO contacts for auxiliary contacts | 0 |
| identification number and letter for switching elements | 22 |
| 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 |
| operational current at DC-12 | |
| ● at 24 V rated value | 10 A |
| ● at 48 V rated value | 10 A |
| ● at 60 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 60 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 |
| UL/CSA ratings |
| contact rating of auxiliary contacts according to UL | A600 / P600 |
| Short-circuit protection |
| design of the fuse link | |
| ● for short-circuit protection of the main circuit | |
| — with type of coordination 1 required | 2 x 3NA31 (160 A) in series (750 V, 5 kA) |
| — with type of assignment 2 required | 2 x 3NA31 (63 A) in series (750 V, 5 kA) |
| ● for short-circuit protection of the auxiliary switch required | gG: 16 A (500 V, 1 kA) |
| Installation/ mounting/ dimensions |
| mounting position | +/-22,5° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface; standing, on horizontal mounting surface |
| fastening method | screw fixing |
| ● side-by-side mounting | Yes |
| height | 177.5 mm |
| width | 100 mm |
| depth | 156 mm |
| required spacing | |
| ● with side-by-side mounting | |
| — forwards | 20 mm |
| — backwards | 0 mm |
| — upwards | 10 mm |
| — downwards | 10 mm |
| — at the side | 10 mm |
| ● for grounded parts | |
| — forwards | 55 mm |
| — backwards | 0 mm |
| — upwards | 10 mm |
| — at the side | 10 mm |
| — downwards | 10 mm |
| ● for live parts | |
| — forwards | 55 mm |
| — backwards | 0 mm |
| — upwards | 10 mm |
| — downwards | 10 mm |
| — at the side | 10 mm |
| Connections/ Terminals |
| type of electrical connection | screw-type terminals |
| ● for main current circuit | screw-type terminals |
| ● for auxiliary and control circuit | screw-type terminals |
| type of connectable conductor cross-sections | |
| ● for auxiliary contacts | |
| — solid or stranded | 2x (1 ... 2,5 mm²) |
| — finely stranded with core end processing | 2x (0.75 ... 1.5 mm²) |
| Safety related data |
| product function mirror contact according to IEC 60947-4-1 | Yes |
| protection class IP on the front according to IEC 60529 | IP00; IP20 with box terminal/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) |
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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: | 12/2/2021 |
Date 5/12/2022 | Subject to change without notice © Copyright Siemens 2022 |