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Siemens 3RB2056-2FF2
Overload relay 50...200 A for motor protection Size S6
- MPN
- 3RB2056-2FF2
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What is the Siemens 3RB2056-2FF2?
Overload relay 50...200 A for motor protection Size S6, Class 20E Contactor mounting/stand-alone installation Main circuit: busbar connection Auxiliary circuit: Spring-type terminal Manual-Automatic-Reset
Specifications
General
| product brand name | SIRIUS |
| product designation | solid-state overload relay |
| product type designation | 3RB2 |
General technical data
| size of overload relay | S6 |
| size of contactor can be combined company-specific | S6 |
| 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 | 300 V |
| maximum permissible voltage for protective separation — in networks with grounded star point between auxiliary and auxiliary circuit | 300 V |
| maximum permissible voltage for protective separation — in networks with ungrounded star point between main and auxiliary circuit | 600 V |
| maximum permissible voltage for protective separation — in networks with grounded star point between main and auxiliary circuit | 690 V |
| shock resistance | 15 g / 11 ms |
| shock resistance — according to IEC 60068-2-27 | 15 g / 11 ms |
| vibration resistance | 1 … 6 Hz, 15 mm; 6 … 500 Hz, 20 m/s²; 10 cycles |
| thermal current | 200 A |
| recovery time after overload trip — with automatic reset typical | 3 min |
| recovery time after overload trip — with remote-reset | 0 min |
| recovery time after overload trip — with manual reset | 0 min |
| reference code according to IEC 81346-2 | F |
| Substance Prohibitance (day/month/year) | 07/01/2006 |
| SVHC substance name | Lead CAS-No. 7439-92-1 Lead monoxide (lead oxide) CAS-No. 1317-36-8 2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one CAS-No. 71868-10-5 Melamine CAS-No. 108-78-1 6,6'-di-tert-butyl-2,2'-methylenedi-p-cresol CAS-No. 119-47-1 |
| Net Weight | 0.951 kg |
Ambient conditions
| installation altitude at height above sea level maximum | 2 000 m |
| ambient temperature — during operation | -25 ... +60 °C |
| ambient temperature — during storage | -40 ... +80 °C |
| ambient temperature — during transport | -40 ... +80 °C |
| temperature compensation | -25 ... +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 | 50 ... 200 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 | 200 A |
| operational current at AC-3e at 400 V rated value | 200 A |
| operating power — for 3-phase motors at 400 V at 50 Hz | 30 ... 90 kW |
| operating power — for AC motors at 500 V at 50 Hz | 30 ... 132 kW |
| operating power — for AC motors at 690 V at 50 Hz | 55 ... 160 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 | 4 A |
| operational current of auxiliary contacts at AC-15 — at 110 V | 4 A |
| operational current of auxiliary contacts at AC-15 — at 120 V | 4 A |
| operational current of auxiliary contacts at AC-15 — at 125 V | 4 A |
| operational current of auxiliary contacts at AC-15 — at 230 V | 3 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 | 0.55 A |
| operational current of auxiliary contacts at DC-13 — at 110 V | 0.3 A |
| operational current of auxiliary contacts at DC-13 — at 125 V | 0.3 A |
| operational current of auxiliary contacts at DC-13 — at 220 V | 0.11 A |
Protective and monitoring functions
| trip class | CLASS 20E |
| design of the overload release | electronic |
UL/CSA ratings
| full-load current (FLA) for 3-phase AC motor — at 480 V rated value | 200 A |
| full-load current (FLA) for 3-phase AC motor — at 600 V rated value | 200 A |
| contact rating of auxiliary contacts according to UL | B600 / R300 |
Short-circuit protection
| design of the fuse link — for short-circuit protection of the main circuit — with type of coordination 1 required | gG: 355 A, Class L: 601 A |
| design of the fuse link — for short-circuit protection of the main circuit — with type of coordination 2 required | gG: 315 A |
| design of the fuse link — for short-circuit protection of the auxiliary switch required | fuse gG: 6 A |
Installation/ mounting/ dimensions
| mounting position | any |
| fastening method | Contactor mounting/stand-alone installation |
| height | 119 mm |
| width | 120 mm |
| depth | 155 mm |
| required spacing — for grounded parts — forwards | 0 mm |
| required spacing — for grounded parts — backwards | 0 mm |
| required spacing — for grounded parts — upwards | 0 mm |
| required spacing — for grounded parts — at the side | 6 mm |
| required spacing — for grounded parts — downwards | 0 mm |
| required spacing — for live parts — forwards | 0 mm |
| required spacing — for live parts — backwards | 0 mm |
| required spacing — for live parts — upwards | 0 mm |
| required spacing — for live parts — downwards | 0 mm |
| required spacing — for live parts — at the side | 6 mm |
Connections/ Terminals
| product component removable terminal for auxiliary and control circuit | Yes |
| type of electrical connection — for main current circuit | busbar connection |
| 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 auxiliary contacts — solid | 2x (0.25 ... 1.5 mm²) |
| type of connectable conductor cross-sections — for auxiliary contacts — solid or stranded | 2x (0,25 ... 1,5 mm²) |
| type of connectable conductor cross-sections — for auxiliary contacts — finely stranded with core end processing | 2x (0.25 ... 1.5 mm²) |
| type of connectable conductor cross-sections — for auxiliary contacts — finely stranded without core end processing | 2x (0.25 ... 1.5 mm²) |
| type of connectable conductor cross-sections — for AWG cables for auxiliary contacts | 2x (24 ... 16) |
| tightening torque — for main contacts with screw-type terminals | 10 ... 12 N·m |
| design of the thread of the connection screw — for main contacts | M8 |
| 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 box terminal/cover |
Communication/ Protocol
| type of voltage supply via input/output link master | No |
Electromagnetic compatibility
| conducted interference — due to burst according to IEC 61000-4-4 | 2 kV (power ports), 1 kV (signal ports) corresponds to degree of severity 3 |
| conducted interference — due to conductor-earth surge according to IEC 61000-4-5 | 2 kV (line to earth) corresponds to degree of severity 3 |
| conducted interference — due to conductor-conductor surge according to IEC 61000-4-5 | 1 kV (line to line) corresponds to degree of severity 3 |
| conducted interference — due to high-frequency radiation according to IEC 61000-4-6 | 10 V in frequency range 0.15 to 80 MHz, modulation 80 % AM with 1 kHz |
| field-based interference according to IEC 61000-4-3 | 10 V/m |
| electrostatic discharge according to IEC 61000-4-2 | 6 kV contact discharge / 8 kV air discharge |
Display
| display version for switching status | Slide switch |
Downloads & documentation
Official documents from Siemens, downloaded directly from the manufacturer.
Data sheets & manuals
3RB2056-2FF2: frequently asked questions
When can 3RB2056-2FF2 be shipped?
3RB2056-2FF2 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 3RB2056-2FF2 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 3RB2056-2FF2 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 3RB2056-2FF2, subject to availability and destination.
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Siemens 3RB2056-2FF2Price and lead time confirmed within 1 business day
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