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Siemens 3UF7121-1AA01-0
Current/voltage measuring module for dry-running protection of centrifugal pumps in hazardous areas
- MPN
- 3UF7121-1AA01-0
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- 12-month warranty (new) · 3-month (used/refurbished)
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What is the Siemens 3UF7121-1AA01-0?
current/voltage measuring module for dry-running protection of centrifugal pumps in hazardous areas, current setting 3...40 A, voltage measurement up to 690 V, width 45 mm, straight-through transformer
Specifications
General
| product brand name | SIMOCODE |
| product designation | Current/voltage measuring module |
| product type designation | IUM |
General technical data
| measuring procedure | RMS value measurement |
| size of the circuit-breaker | S00, S0 |
| product function — current measurement | Yes |
| product function — voltage measurement | Yes |
| product function — active power measurement | Yes |
| product function — energy measurement | Yes |
| product function — frequency measurement | Yes |
| product function — active power monitoring for pump dry-run according to Ignition protection type Ex b | Yes |
| measuring procedure for current measurement | TRMS |
| current measuring range extension with external current transformers | Yes |
| measuring procedure for voltage measurement | TRMS |
| measurable supply voltage between the line conductors at AC maximum rated value | 690 V |
| product component — input for thermistor connection | No |
| consumed active power | 0.5 W |
| insulation voltage — with degree of pollution 3 at AC rated value | 690 V |
| insulation voltage — for wires of main circuit according to IEC 60947-1 rated value | 6 kV |
| surge voltage resistance rated value | 6 000 V |
| shock resistance according to IEC 60068-2-27 | 15 g / 11 ms; with basic unit snapped on |
| vibration resistance | 1 … 6 Hz / 15 mm; 6 … 500 Hz / 2 g; with basic unit snapped on: 1 g |
| Substance Prohibitance (day/month/year) | 05/28/2009 |
| 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 |
| Net Weight | 0.182 kg |
Electromagnetic compatibility
| EMC emitted interference according to IEC 60947-1 | class A |
| EMC immunity according to IEC 60947-1 | corresponds to degree of severity 3 |
| conducted interference — due to burst according to IEC 61000-4-4 | 2 kV |
| conducted interference — due to conductor-earth surge according to IEC 61000-4-5 | 2 kV |
| conducted interference — due to conductor-conductor surge according to IEC 61000-4-5 | 1 kV |
| field-based interference according to IEC 61000-4-3 | 10 V/m |
Inputs/ Outputs
| number of outputs as contact-affected switching element | 0 |
Protective and monitoring functions
| product function — power factor monitoring | Yes |
| product function — ground-fault monitoring | Yes |
| product function — voltage detection | Yes |
| trip class | CLASS 5E, 7E, 10E, 15E, 20E, 25E, 30E, 35E and 40E adjustable |
| product function — current detection | Yes |
| product function — overload protection | Yes |
Precision
| measuring precision — of frequency measurement | +/- 1.5 %, 2.25 A ... 80 A, 0.85 x 110 V ... 1.1 x 690 V (line-to-line voltages), cos phi (0.5...1), 50/60 Hz, 25 °C |
| measuring precision — for current measurement 1 | +/- 1.5 %, in range 2.25 A ... 80 A, in range 0.85 x 110 V ... 1.1 x 690 V (line-to-line voltages), 50/60 Hz, 25 °C |
| measuring precision — for current measurement 2 | +/- 3%, in range 80 A ... 320 A, in range 0.85 x 110 V ... 1.1 x 690 V (line-to-line voltages), 50/60 Hz, 25 °C |
| measuring precision — for voltage measurement 1 | +/- 1.5 %, in range 0.85 x 110 V ... 1.1 x 690 V (line-to-line voltages), 50/60 Hz, 25 °C |
| measuring precision — at cos phi-measurement 1 | +/- 1.5 %, 7.5 A ... 230 A, 0.85 x 110 V ... 1.1 x 690 V (line-to-line voltages), cos phi (0.5...1), 50/60 Hz, 25 °C |
| measuring precision — at cos phi-measurement 2 | +/- 5%, 80 A ... 320 A, 0.85 x 110 V ... 1.1 x 690 V (line-to-line voltages), cos-phi (0.5...1), 50/60 Hz, 25 °C |
| measuring precision — for active power measurement 1 | +/- 5%, 7.5 A ... 230 A, 0.85 x 110 V ... 1.1 x 690 V (line-to-line voltages), cos-phi (0.5...1), 50/60 Hz, 25 °C |
| measuring precision — for active power measurement 2 | +/- 10%, 80 A ... 320 A, 0.85 x 110 V ... 1.1 x 690 V (line-to-line voltages), cos-phi (0.5...1), 50/60 Hz, 25 °C |
| measuring precision — for energy measurement 1 | +/- 5%, 2.25 A ... 80 A, 0.85 x 110 V ... 1.1 x 690 V (line-to-line voltages), cos-phi (0.5...1), 50/60 Hz, 25 °C |
| measuring precision — for energy measurement 2 | +/- 10%, 80 A ... 320 A, 0.85 x 110 V ... 1.1 x 690 V (line-to-line voltages), cos-phi (0.5...1), 50/60 Hz, 25 °C |
| measuring precision — for apparent power measurement 1 | +/- 3%, 2.25 A ... 80 A, 0.85 x 110 V ... 1.1 x 690 V (line-to-line voltages), cos-phi (0.5...1), 50/60 Hz, 25 °C |
| measuring precision — for apparent power measurement 2 | +/- 5 %, 80 A ... 320 A, 0.85 x 110 V ... 1.1 x 690 V (line-to-line voltages), cos phi (0.5...1), 50/60 Hz, 25 °C |
| accuracy of ground-fault monitoring | In the range 30 % .. 120 %/Is: +/- 10 % (Class CI-A), in range 15 % .. 30 % Ie: +/- 25 % (Class CI-B), both values acc. to IEC 60947-1 Annex T |
| temperature drift per °C | 0.01 %/°C; Reference temperature: 25°C |
| measured variable frequency | 45 ... 65 Hz |
Installation/ mounting/ dimensions
| mounting position | any |
| fastening method | screw and snap-on mounting |
| height | 84 mm |
| width | 45 mm |
| depth | 64 mm |
| required spacing — top | 30 mm |
| required spacing — bottom | 30 mm |
| required spacing — left | 0 mm |
| required spacing — right | 0 mm |
| diameter of inlet opening | 7.5 mm |
| diameter of inlet opening for current measurement | 7.5 mm |
Connections/ Terminals
| type of electrical connection — for main current circuit | straight-through transformers |
| type of electrical connection — for auxiliary and control circuit | screw-type terminals |
| type of electrical connection at the measurement inputs for voltage | screw-type terminals |
| type of connectable conductor cross-sections at the measurement inputs for voltage — finely stranded with core end processing | 1x (0.25 ... 2.5 mm²), 2x (0.25 ... 1.0 mm²) |
| type of connectable conductor cross-sections at the measurement inputs for voltage — solid | 1x (0.25 ... 2.5 mm²), 2x (0.25 ... 1.0 mm²) |
| type of connectable conductor cross-sections at the measurement inputs for voltage — for AWG cables solid | 1x (24 ... 14), 2x (24 ... 18) |
| type of connectable conductor cross-sections at the measurement inputs for voltage — for AWG cables stranded | 1x (20 ... 14), 2x (20 ... 16) |
| tightening torque at the measurement inputs for voltage | 0.5 ... 0.6 N·m |
| tightening torque [lbf·in] at the measurement inputs for voltage | 4.4 ... 5.3 lbf·in |
| test voltage for isolation test note | For insulation tests, it is recommended to disconnect the voltage terminals; this is mandatory for DC test voltages. |
Ambient conditions
| installation altitude at height above sea level — 1 maximum | 2 000 m |
| installation altitude at height above sea level — 2 maximum | 3 000 m; max. +50 °C (no protective separation) |
| installation altitude at height above sea level — 3 maximum | 4 000 m; max. +40 °C (no protective separation) |
| ambient temperature — during operation | -25 ... +60 °C |
| ambient temperature — during storage | -40 ... +80 °C |
| ambient temperature — during transport | -40 ... +80 °C |
| environmental category — during operation according to IEC 60721 | 3K6 (no formation of ice, no condensation, relative humidity 10 ... 95%), 3C3 (no salt mist), 3S2 (sand must not get into the devices), 3M6 |
| environmental category — during storage according to IEC 60721 | 1K6 (no condensation, relative humidity 10 ... 95%), 1C2 (no salt mist), 1S2 (sand must not get into the devices), 1M4 |
| environmental category — during transport according to IEC 60721 | 2K2, 2C1, 2S1, 2M2 |
| relative humidity during operation | 10 ... 95 % |
Short-circuit protection
| product function short circuit protection | No |
| Safety Integrity Level (SIL) according to IEC 61508 | 1 |
ATEX
| certificate of suitability — IECEx | Yes; IECEx PTB 18.0004X |
| certificate of suitability — according to ATEX directive 2014/34/EU | BVS 06 ATEX F001, PTB 18 ATEX 5003 X |
| certificate of suitability — according to UKCA | ITS21UKEX0464, ITS21UKEX0455X |
| explosion device group and category according to ATEX directive 2014/34/EU | II (2) G, II (2 ) D, I (M2) / I (M2), II (1/2) G, II (1G/2D) |
Galvanic isolation
| (electrically) protective separation according to IEC 60947-1 | All circuits with protective separation (double creepage paths and clearances), the information in the "Protective Separation" test report, No. A0258, must be observed (link see further information) |
Main circuit
| number of poles for main current circuit | 3 |
| adjustable current response value current of the current-dependent overload release | 3 ... 40 A |
| operating voltage — at AC — at 50 Hz rated value | 110 ... 690 V |
| operating voltage — at AC — at 60 Hz rated value | 110 ... 690 V |
| operating frequency rated value | 50 ... 60 Hz |
Control circuit/ Control
| type of voltage | AC |
| inrush current maximum | 400 A; 10 x Io |
Downloads & documentation
Official documents from Siemens, downloaded directly from the manufacturer.
Data sheets & manuals
3UF7121-1AA01-0: frequently asked questions
When can 3UF7121-1AA01-0 be shipped?
3UF7121-1AA01-0 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 3UF7121-1AA01-0 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 3UF7121-1AA01-0 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 3UF7121-1AA01-0, subject to availability and destination.
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