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Siemens 3UG4581-2AW31
Insulation monitoring relay for ungrounded (IT) networks up to 400 V AC
- MPN
- 3UG4581-2AW31
- Category
- Insulation monitoring
Price and lead time confirmed within 1 business day
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- 12-month warranty (new) · 3-month (used/refurbished)
- 30-day returns, no restocking fee on unused parts
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What is the Siemens 3UG4581-2AW31?
insulation monitoring relay for ungrounded (IT) networks up to 400 V AC, 50-60 Hz measuring range 1-100 kohm supply voltage 24-240 V AC/DC 22.5 mm, 1 changeover contact spring-loaded terminal (push-in)
Specifications
General
| product brand name | SIRIUS |
| product designation | Insulation monitoring relay with analog setting |
| product type designation | 3UG4 |
General technical data
| product function | Insulation monitor |
| type of voltage — for monitoring | AC |
| type of voltage — of the operating voltage for actuation | AC/DC |
| type of voltage — of the control supply voltage | AC/DC |
| surge voltage resistance rated value | 6 000 V |
| thermal current of the switching element with contacts maximum | 4 A |
| reference code according to IEC 81346-2 | K |
| Substance Prohibitance (day/month/year) | 05/01/2012 |
| Net Weight | 0.155 kg |
Product Function
| product function — phase sequence recognition | No |
| product function — phase failure detection | No |
| product function — asymmetry detection | No |
| product function — error memory | Yes |
| product function — adjustable open/closed-circuit current principle | No |
| product function — manual RESET | Yes |
Control circuit/ Control
| control supply voltage at AC — at 50 Hz rated value | 24 ... 240 V |
| control supply voltage at AC — at 60 Hz rated value | 24 ... 240 V |
| control supply voltage at DC rated value | 24 ... 240 V |
| operating range factor control supply voltage rated value at DC — initial value | 0.85 |
| operating range factor control supply voltage rated value at DC — full-scale value | 1.1 |
| operating range factor control supply voltage rated value at AC at 50 Hz — initial value | 0.85 |
| operating range factor control supply voltage rated value at AC at 50 Hz — full-scale value | 1.1 |
| operating range factor control supply voltage rated value at AC at 60 Hz — initial value | 0.85 |
| operating range factor control supply voltage rated value at AC at 60 Hz — full-scale value | 1.1 |
Measuring circuit
| measurable line frequency | 50 ... 60 Hz |
| measurable voltage at AC | 0 ... 400 V |
Communication/ Protocol
| protocol is supported IO-Link protocol | No |
Auxiliary circuit
| number of NC contacts for auxiliary contacts | 0 |
| number of NC contacts delayed switching | 0 |
| number of NO contacts for auxiliary contacts | 0 |
| number of NO contacts delayed switching | 0 |
| number of CO contacts — delayed switching | 1 |
Main circuit
| operating frequency rated value | 50 ... 60 Hz |
Safety related data
| product function suitable for safety function | No |
| protection class IP on the front according to IEC 60529 | IP20 |
Connections/ Terminals
| product component removable terminal for auxiliary and control circuit | No |
| type of electrical connection | spring-loaded terminal (push-in) |
| type of connectable conductor cross-sections — solid | 2x (0.5 ... 1.5 mm²) |
| type of connectable conductor cross-sections — finely stranded with core end processing | 2x (0.5 ... 1.5 mm²) |
| type of connectable conductor cross-sections — finely stranded without core end processing | 2x (0.5 ... 1.5 mm²) |
| type of connectable conductor cross-sections — for AWG cables solid | 2x (20 ... 16) |
| type of connectable conductor cross-sections — for AWG cables stranded | 2x (18 ... 16) |
| connectable conductor cross-section — solid | 0.5 ... 1.5 mm² |
| connectable conductor cross-section — finely stranded with core end processing | 0.5 ... 1.5 mm² |
| connectable conductor cross-section — finely stranded without core end processing | 0.5 ... 1.5 mm² |
| AWG number as coded connectable conductor cross section — solid | 20 ... 16 |
| AWG number as coded connectable conductor cross section — stranded | 18 ... 16 |
Installation/ mounting/ dimensions
| mounting position | any |
| fastening method | snap-on fastening on 35 mm DIN rail |
| height | 78 mm |
| width | 22.5 mm |
| depth | 100 mm |
| required spacing — with side-by-side mounting — forwards | 0 mm |
| required spacing — with side-by-side mounting — backwards | 0 mm |
| required spacing — with side-by-side mounting — upwards | 0 mm |
| required spacing — with side-by-side mounting — downwards | 0 mm |
| required spacing — with side-by-side mounting — at the side | 0 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 | 0 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 | 0 mm |
Ambient conditions
| ambient temperature during operation | -25 ... +60 °C |
Approvals Certificates
| global warming potential [CO2 eq] / during manufacturing | 3.51 kg |
| global warming potential [CO2 eq] / during sales | 0.0276 kg |
| global warming potential [CO2 eq] / during operation | 13.7 kg |
| global warming potential [CO2 eq] / after end of life | -1.12 kg |
| global warming potential [CO2 eq] / total | 16.1 kg |
Downloads & documentation
Official documents from Siemens, downloaded directly from the manufacturer.
Data sheets & manuals
3UG4581-2AW31: frequently asked questions
When can 3UG4581-2AW31 be shipped?
3UG4581-2AW31 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 3UG4581-2AW31 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 3UG4581-2AW31 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 3UG4581-2AW31, subject to availability and destination.
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Siemens 3UG4581-2AW31Price and lead time confirmed within 1 business day
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