Properties
| Version | Surge voltage arrester, Low voltage, Surge protection, TN-C-S, TN-S, TT, IT with N, IT without N |
| Order No. | 2637050000 |
| Type | VPU AC II 3+1 350/50 |
| GTIN (EAN) | 4050118679311 |
| 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 | 72 mm |
| Width (inches) | 2.835 inch |
| Net weight | 49 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 | 277 V |
| VPR (N-PE) | 1,000 V |
| MCOV (L-PE) | 350 V |
| MCOV (N-PE) | 305 V |
| SCCR | 200 kA |
| In | 20 kA |
| Category | SPD TYPE 1CA |
| Ambient temperature (operational), min. | -40 °C |
| Certificate No. (cURus) | E354261 |
| MODE | all modes |
| VPR (L-L) | 2,000 V |
| VPR (L-N) | 1,000 V |
| VPR (L-PE) | 1,000 V |
| Voltage type | AC |
| UL Energy Networks |
3-phase WYE
High-Leg Delta |
| Colour |
orange
black blue |
| Design |
Installation housing; 4TE
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 |
| Combined pulse UOC | 6 kV |
| Discharge current (type III) | 3 kA |
| Discharge current Imax (8/20µs) N-PE | 65 kA |
| Discharge current Imax (8/20µs) wire-PE | 50 kA |
| Discharge current In (8/20µs) N-PE | 40 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 | 1 µA |
| Low voltage network |
TN-C-S
TN-S TT IT with N IT without N |
| Max. continuous voltage, Uc (AC) | 350 V |
| Number of poles | 4 |
| Protection level Up at IN (L/N-PE) | ≤ 1.75 kV |
| Protection level Up at IN (N-PE) | ≤ 1.5 kV |
| Rated voltage (AC) | 230 V |
| Requirements category acc. to IEC 61643-11 |
Type II
Type III |
| Requirements class, acc. to EN 61643-11 |
T2
T3 |
| Response time | ≤ 25 ns |
| Short-circuit current rating ISCCR | 50 kA |
| Signalling contact | No |
| SPD type | T2 |
| Standards |
IEC61643-11, EN61643-11
UL 1449 |
| Temporary surge voltage (over-voltage) - TOV | 403 V |
| Voltage type | AC |
| Stripping length | 15 mm |
| Wire connection method | Screw connection |
| Type of connection | Screw connection |
| Stripping length, rated connection | 15 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 cross-section, solid, min. | 1.5 mm² |
| Wire cross-section, solid, max. | 16 mm² |
| Wire connection cross section, finely stranded, min. | 1.5 mm² |
| Wire connection cross section, finely stranded, max. | 25 mm² |
| Connection cross-section, stranded, min. | 1.5 mm² |
| Connection cross-section, stranded, max. | 35 mm² |
| Time interval | 5 years |
| Product information |
Only applicable to IT power systems where the earth on the distribution transformer is interconnected with the earth on the consumer side (RE=RA in Figure 44.A1 of IEC 60634-4-44:2018). For use in DC applications, please use the fuse of SIBA Type NH2XL aR/aSF DC 1500 V |
| Approval/Certificate/Document of Conformity | [EU_Konformitätserklärung / EU_Declaration_of_Conformity](https://mdcop.weidmueller.com/mediadelivery/asset/900_80488) |
| Engineering Data | [CAD data -- STEP](https://mdcop.weidmueller.com/mediadelivery/asset/900_88018) |
| Eplan Data Portal | [Eplan data](https://dataportal.eplan.com/part-details/WEI.2637050000) |
| CADENAS eCATALOG | [CAX data](https://weidmueller-embedded.partcommunity.com?catalog=weidmueller_qs&part=2637050000) |
| User Documentation | [Beipackzettel / Instruction sheet](https://mdcop.weidmueller.com/mediadelivery/asset/900_90755) |
| 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. (cURus) | E354261 |