Properties
| Version | Surge voltage arrester, Low voltage, Surge protection, TN-C |
| Order No. | 2730720000 |
| Type | VPU AC II US 3 400/50 |
| GTIN (EAN) | 4050118807387 |
| Qty. | 1 items |
| Depth | 68 mm |
| Depth (inches) | 2.677 inch |
| Depth including DIN rail | 76 mm |
| Height | 96.3 mm |
| Height (inches) | 3.791 inch |
| Width | 54 mm |
| Width (inches) | 2.126 inch |
| Mounting dimension - height | 75 mm |
| Net weight | 396 g |
| Storage temperature | -40 °C...85 °C |
| Operating temperature | -40 °C...85 °C |
| Humidity | 5 - 95% rel. humidity |
| REACH SVHC | / |
| Ambient temperature (operational), max. | 85 °C |
| Rated Voltage UN | 400 V |
| MCOV (L-PE) | 480 V |
| SCCR | 200 kA |
| In | 20 kA |
| Category | SPD TYPE 1 |
| Connection cross-section AWG, min. | AWG 14 |
| Connection cross-section AWG, max. | AWG 6 |
| Ambient temperature (operational), min. | -40 °C |
| MODE | all modes |
| VPR (L-L) | 3,000 V |
| VPR (L-PE) | 1,500 V |
| Voltage type | AC |
| UL Energy Networks |
Delta System
3-phase WYE |
| Colour |
orange
black |
| Design |
Installation housing
Insta IP 20 |
| Operating altitude | ≤ 4000 m |
| Optical function display | green = OK; red = arrester is defective - replace |
| Protection degree | IP20 in installed state |
| Rail | TS 35 |
| Segment | Power distribution |
| UL 94 flammability rating | V-0 |
| Version | Surge protection |
| Pollution severity | 2 |
| Surge voltage category | III |
| Discharge current Imax (8/20µs) wire-PE | 50 kA |
| Discharge current In (8/20µs) wire-PE | 20 kA |
| Energy coordination (≤10 m) |
Type II
Type III |
| Follow-on current extinguishing capability Ifi | Follow current need not be taken into account |
| Frequency range, max. | 60 Hz |
| Frequency range, min. | 50 Hz |
| Fuse |
No Fuse neccessary ≤315 A gG
250 A gG @50 kA Isccr 315 A gG @25 kA Isccr |
| Leakage current at Un | 0.3 mA |
| Low voltage network | TN-C |
| Mains voltage | 230 V / 400 V |
| Max. continuous voltage, Uc (AC) | 480 V |
| Number of poles | 3 |
| Protection level Up at IN (L/N-PE) | ≤ 2.3 kV |
| Rated voltage (AC) | 400 V |
| Requirements category acc. to IEC 61643-11 | Type II |
| Requirements class, acc. to EN 61643-11 | T2 |
| Response time | ≤ 25 ns |
| Short-circuit current rating ISCCR | 50 kA |
| Signalling contact | No |
| SPD type | T2 |
| Standards |
IEC61643-11, EN61643-11
UL 1449 NFPA 79 |
| Temporary surge voltage (over-voltage) - TOV | 581 V |
| Voltage type | AC |
| Stripping length | 18 mm |
| Wire connection method | Screw connection |
| Type of connection | Screw connection |
| Stripping length, rated connection | 18 mm |
| Tightening torque, min. | 2 Nm |
| Tightening torque, max. | 4.5 Nm |
| Clamping range, rated connection | 16 mm² |
| Clamping range, min. | 4 mm² |
| Clamping range, max. | 35 mm² |
| Wire connection cross section AWG, min. | AWG 14 |
| Wire connection cross section AWG, max. | AWG 6 |
| Wire cross-section, solid, min. | 2.5 mm² |
| Wire cross-section, solid, max. | 35 mm² |
| Wire connection cross section, finely stranded, min. | 4 mm² |
| Wire connection cross section, finely stranded, max. | 35 mm² |
| Conductor cross-section, flexible, AEH (DIN 46228-1), min. | 2.5 mm² |
| Conductor cross-section, flexible, AEH (DIN 46228-1), max. | 35 mm² |
| Connection cross-section, stranded, min. | 2.5 mm² |
| Connection cross-section, stranded, max. | 35 mm² |
| Certificate no. (cULus) | E354261 |
| Time interval | 5 years |
| Approval/Certificate/Document of Conformity | [EU_Konformitätserklärung / EU_Declaration_of_Conformity](https://mdcop.weidmueller.com/mediadelivery/asset/900_157364) |
| Engineering Data | [CAD data -- STEP](https://mdcop.weidmueller.com/mediadelivery/asset/900_212269) |
| Eplan Data Portal | [Eplan data](https://dataportal.eplan.com/part-details/WEI.2730720000) |
| CADENAS eCATALOG | [CAX data](https://weidmueller-embedded.partcommunity.com?catalog=weidmueller_qs&part=2730720000) |
| User Documentation | [Beipackzettel / Instruction sheet](https://mdcop.weidmueller.com/mediadelivery/asset/900_188076) |
| Catalogues | [Catalogues in PDF-format](LINK/Catalog.html) |
| ETIM 6.0 | EC000941 |
| ETIM 7.0 | EC000941 |
| ETIM 8.0 | EC000941 |
| ETIM 9.0 | EC000941 |
| ECLASS 9.0 | 27-13-08-05 |
| ECLASS 9.1 | 27-13-08-05 |
| ECLASS 10.0 | 27-13-08-05 |
| ECLASS 11.0 | 27-13-08-05 |
| ECLASS 12.0 | 27-17-90-90 |
| ECLASS 13.0 | 27-17-90-90 |
| Approvals |    |
| ROHS | Conform |
| UL File Number Search | [UL Website](LINK/UL_search.html) |
| Certificate no. (cULus) | E354261 |