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Siemens 3RU2146-4MD0
Overload relay 80...100 A thermal for motor protection frame size S3
- MPN
- 3RU2146-4MD0
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What is the Siemens 3RU2146-4MD0?
overload relay 80...100 A thermal for motor protection frame size S3, Class 10 for mounting on contactors main circuit: screw auxiliary circuit: spring-loaded terminal manual-automatic RESET
Specifications
General
| 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 | 21 W |
| power loss [W] for rated value of the current at AC in hot operating state — per pole | 7 W |
| type of calculation of power loss current-dependent | quadratic |
| 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 protective separation — in networks with ungrounded star point between auxiliary and auxiliary circuit | 440 V |
| maximum permissible voltage for protective separation — in networks with grounded star point between auxiliary and auxiliary circuit | 440 V |
| maximum permissible voltage for protective separation — in networks with ungrounded star point between main and auxiliary circuit | 440 V |
| maximum permissible voltage for protective separation — in networks with grounded star point between main and auxiliary circuit | 440 V |
| shock resistance according to IEC 60068-2-27 | 8g / 11 ms |
| recovery time after overload trip — with automatic reset typical | 10 min |
| recovery time after overload trip — with remote-reset | 10 min |
| recovery time after overload trip — with manual reset | 10 min |
| reference code according to IEC 81346-2 | F |
| Substance Prohibitance (day/month/year) | 03/01/2017 |
| Net Weight | 0.554 kg |
Ambient conditions
| installation altitude at height above sea level maximum | 2 000 m |
| ambient temperature — during operation | -40 ... +70 °C |
| ambient temperature — during storage | -55 ... +80 °C |
| ambient temperature — 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 | 80 ... 100 A |
| operating voltage — rated value | 1 000 V |
| operating voltage — at AC-3e rated value maximum | 1 000 V |
| operating frequency rated value | 50 ... 60 Hz |
| operational current rated value | 100 A |
| operational current at AC-3e at 400 V rated value | 100 A |
| operating power — at AC-3 — at 400 V rated value | 45 kW |
| operating power — at AC-3 — at 500 V rated value | 55 kW |
| operating power — at AC-3 — at 690 V rated value | 90 kW |
| operating power — at AC-3e — at 400 V rated value | 45 kW |
| operating power — at AC-3e — at 500 V rated value | 55 kW |
| operating power — at AC-3e — at 690 V rated value | 90 kW |
Auxiliary circuit
| design of the auxiliary switch | integrated |
| number of NC contacts for auxiliary contacts | 1 |
| number of NC contacts for auxiliary contacts — note | for contactor disconnection |
| number of NO contacts for auxiliary contacts | 1 |
| number of NO contacts for auxiliary contacts — 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 |
| operational current of auxiliary contacts at AC-15 — at 110 V | 3 A |
| operational current of auxiliary contacts at AC-15 — at 120 V | 3 A |
| operational current of auxiliary contacts at AC-15 — at 125 V | 3 A |
| operational current of auxiliary contacts at AC-15 — at 230 V | 2 A |
| operational current of auxiliary contacts at AC-15 — at 400 V | 1 A |
| operational current of auxiliary contacts at AC-15 — at 690 V | 0.75 A |
| operational current of auxiliary contacts at DC-13 — at 24 V | 2 A |
| operational current of auxiliary contacts at DC-13 — at 60 V | 0.3 A |
| operational current of auxiliary contacts at DC-13 — at 110 V | 0.22 A |
| operational current of auxiliary contacts at DC-13 — at 125 V | 0.22 A |
| operational current of auxiliary contacts at DC-13 — 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 | 96 A |
| full-load current (FLA) for 3-phase AC motor — at 600 V rated value | 99 A |
Short-circuit protection
| design of the fuse link — for short-circuit protection of the main circuit — with type of coordination 1 required | 690 V: gG: 250 A; 1000 V: a.M. / g.B.: 200 A |
| design of the fuse link — for short-circuit protection of the main circuit — with type of coordination 2 required | 690 V: gG: 200 A; 1000 V: a.M. / g.B.: 200 A |
| design of the fuse link — for short-circuit protection of the auxiliary switch required | fuse gG: 6 A, quick: 10 A |
Installation/ mounting/ dimensions
| mounting position | for mounting on contactors: with a vertical mounting plane +/-135° rotatable & +/- 22.5° tiltable, stand-alone installation: with a vertical mounting plane +/-135° rotatable and +/-45° tiltable; for more details see manual |
| 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 |
| type of electrical connection — 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) |
| type of connectable conductor cross-sections — for main contacts — stranded | 2x (6 ... 16 mm²), 2x (10 ... 50 mm²), 1x (10 ... 70 mm²) |
| type of connectable conductor cross-sections — for main contacts — solid or stranded | 2x (2,5 ... 50 mm²), 1x (10 ... 70 mm²) |
| type of connectable conductor cross-sections — for main contacts — finely stranded with core end processing | 2x (2.5 ... 35 mm²), 1x (2.5 ... 50 mm²) |
| type of connectable conductor cross-sections — for 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) |
| type of connectable conductor cross-sections — for auxiliary contacts — finely stranded with core end processing | 2x (0.5 ... 1.5 mm²) |
| type of connectable conductor cross-sections — for auxiliary contacts — finely stranded without core end processing | 2x (0.5 ... 2.5 mm²) |
| type of connectable conductor cross-sections — for 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 m |
| 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
| failure rate [FIT] with low demand rate according to SN 31920 | 50 FIT |
| MTTF with high demand rate | 2 280 a |
| T1 value — for proof test interval or service life according to IEC 61508 | 20 a |
| 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 |
Approvals Certificates
| global warming potential [CO2 eq] / during manufacturing | 3.11 kg |
| global warming potential [CO2 eq] / during sales | 0.123 kg |
| global warming potential [CO2 eq] / during operation | 164 kg |
| global warming potential [CO2 eq] / after end of life | -0.256 kg |
| global warming potential [CO2 eq] / total | 167 kg |
Downloads & documentation
Official documents from Siemens, downloaded directly from the manufacturer.
Data sheets & manuals
3RU2146-4MD0: frequently asked questions
When can 3RU2146-4MD0 be shipped?
3RU2146-4MD0 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up 3RU2146-4MD0 in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for 3RU2146-4MD0 and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for 3RU2146-4MD0, subject to availability and destination.
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Siemens 3RU2146-4MD0Price and lead time confirmed within 1 business day
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