| Overload relay 45...63 A Thermal For motor protection Size S3, Class 10 Contactor mounting Main circuit: Screw Auxiliary circuit: spring-type terminal Manual-Automatic-Reset |
| product brand name | SIRIUS |
| product designation | thermal overload relay |
| product type designation | 3RU2 |
| General technical data |
| size of overload relay | S3 |
| size of contactor can be combined company-specific | S3 |
| power loss [W] for rated value of the current at AC in hot operating state | 17.1 W |
| ● per pole | 5.7 W |
| insulation voltage with degree of pollution 3 at AC rated value | 1 000 V |
| surge voltage resistance rated value | 8 kV |
| maximum permissible voltage for safe isolation in networks with grounded star point | |
| ● between auxiliary and auxiliary circuit | 440 V |
| ● between auxiliary and auxiliary circuit | 440 V |
| ● between main and auxiliary circuit | 440 V |
| ● between main and auxiliary circuit | 440 V |
| shock resistance according to IEC 60068-2-27 | 8g / 11 ms |
| type of protection according to ATEX directive 2014/34/EU | Ex II (2) GD |
| certificate of suitability according to ATEX directive 2014/34/EU | DMT 98 ATEX G 001 |
| reference code according to IEC 81346-2 | F |
| Substance Prohibitance (Date) | 03/01/2017 |
| Ambient conditions |
| installation altitude at height above sea level maximum | 2 000 m |
| ambient temperature | |
| ● during operation | -40 ... +70 °C |
| ● during storage | -55 ... +80 °C |
| ● during transport | -55 ... +80 °C |
| temperature compensation | -40 ... +60 °C |
| relative humidity during operation | 10 ... 95 % |
| Main circuit |
| number of poles for main current circuit | 3 |
| adjustable current response value current of the current-dependent overload release | 45 ... 63 A |
| operating voltage | |
| ● rated value | 690 V |
| ● at AC-3e rated value maximum | 1 000 V |
| operating frequency rated value | 50 ... 60 Hz |
| operational current rated value | 63 A |
| operational current at AC-3e at 400 V rated value | 63 A |
| operating power | |
| ● at AC-3 | |
| — at 400 V rated value | 30 kW |
| — at 500 V rated value | 37 kW |
| — at 690 V rated value | 55 kW |
| ● at AC-3e | |
| — at 400 V rated value | 30 kW |
| — at 500 V rated value | 37 kW |
| — at 690 V rated value | 55 kW |
| Auxiliary circuit |
| design of the auxiliary switch | integrated |
| number of NC contacts for auxiliary contacts | 1 |
| ● note | for contactor disconnection |
| number of NO contacts for auxiliary contacts | 1 |
| ● note | for message "Tripped" |
| number of CO contacts for auxiliary contacts | 0 |
| operational current of auxiliary contacts at AC-15 | |
| ● at 24 V | 3 A |
| ● at 110 V | 3 A |
| ● at 120 V | 3 A |
| ● at 125 V | 3 A |
| ● at 230 V | 2 A |
| ● at 400 V | 1 A |
| operational current of auxiliary contacts at DC-13 | |
| ● at 24 V | 2 A |
| ● at 60 V | 0.3 A |
| ● at 110 V | 0.22 A |
| ● at 125 V | 0.22 A |
| ● at 220 V | 0.11 A |
| design of the miniature circuit breaker for short-circuit protection of the auxiliary switch required | 6A (SCC less than equal to 0.5 kA; U less than equal to 260V) |
| contact rating of auxiliary contacts according to UL | B600 / R300 |
| Protective and monitoring functions |
| trip class | CLASS 10 |
| design of the overload release | thermal |
| UL/CSA ratings |
| full-load current (FLA) for 3-phase AC motor | |
| ● at 480 V rated value | 52 A |
| ● at 600 V rated value | 62 A |
| Short-circuit protection |
| design of the fuse link | |
| ● for short-circuit protection of the main circuit | |
| — with type of coordination 1 required | gG: 200 A |
| — with type of assignment 2 required | gG: 125 A |
| ● for short-circuit protection of the auxiliary switch required | fuse gG: 6 A, quick: 10 A |
| Installation/ mounting/ dimensions |
| mounting position | any |
| fastening method | Contactor mounting |
| height | 105 mm |
| width | 70 mm |
| depth | 125 mm |
| Connections/ Terminals |
| product component removable terminal for auxiliary and control circuit | No |
| type of electrical connection | |
| ● for main current circuit | screw-type terminals |
| ● for auxiliary and control circuit | spring-loaded terminals |
| arrangement of electrical connectors for main current circuit | Top and bottom |
| type of connectable conductor cross-sections | |
| ● for main contacts | |
| — solid | 2x (2.5 ... 16 mm²) |
| — stranded | 2x (6 ... 16 mm²), 2x (10 ... 50 mm²), 1x (10 ... 70 mm²) |
| — solid or stranded | 2x (2,5 ... 50 mm²), 1x (10 ... 70 mm²) |
| — finely stranded with core end processing | 2x (2.5 ... 35 mm²), 1x (2.5 ... 50 mm²) |
| ● at AWG cables for main contacts | 2x (10 ... 1/0), 1x (10 ... 2/0) |
| type of connectable conductor cross-sections | |
| ● for auxiliary contacts | |
| — solid or stranded | 2x (0.5 ... 2.5 mm²) |
| — finely stranded with core end processing | 2x (0.5 ... 1.5 mm²) |
| — finely stranded without core end processing | 2x (0.5 ... 2.5 mm²) |
| ● at AWG cables for auxiliary contacts | 2x (20 ... 14) |
| tightening torque | |
| ● for main contacts for ring cable lug | 4.5 ... 6 N·m |
| outer diameter of the usable ring cable lug maximum | 19 mm |
| tightening torque | |
| ● for main contacts with screw-type terminals | 4.5 ... 6 N·m |
| design of screwdriver shaft | Hexagonal socket |
| size of the screwdriver tip | 4 mm hexagon socket |
| design of the thread of the connection screw | |
| ● for main contacts | M8 |
| Safety related data |
| protection class IP on the front according to IEC 60529 | IP20 |
| touch protection on the front according to IEC 60529 | finger-safe, for vertical contact from the front |
| Display |
| display version for switching status | Slide switch |
| Certificates/ approvals |
Downloads and manuals |
|
| 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) |
|
|
|
| last modified: | 3/8/2022 |
Date 5/14/2022 | Subject to change without notice © Copyright Siemens 2022 |