Properties
| Version | Photovoltaics, Combiner Box, Fireman's switch, 2 MPP's, 2 Inputs / 1 Output per MPP, Remote disconnector, WM4C, 1100 V |
| Order No. | 2778880000 |
| Type | PVN DC 2I 1O 2MPP RD WM4 11 |
| GTIN (EAN) | 4064675047636 |
| Qty. | 1 items |
| Depth | 132 mm |
| Depth (inches) | 5.197 inch |
| Height | 370 mm |
| Height (inches) | 14.567 inch |
| Width | 200 mm |
| Width (inches) | 7.874 inch |
| Net weight | 2,534 g |
| Ambient temperature | -20 °C...+50 °C |
| Humidity | 5...95 %, no condensation |
| RoHS Compliance Status | Compliant with exemption |
| RoHS Exemption (if applicable/known) | 7a, 7cI |
| REACH SVHC | Lead 7439-92-1 |
| SCIP | bdab5698-6a20-4370-8e28-8810d882d01a |
| Time interval | 5 years |
| Current per Maximum Power Point, max. | 30 A |
| Rated DC voltage | 1,100 V |
| Rated short-term current resistance |
|
| Connection type string | Plug WM4C |
| Enclosure attachment | Via mounting foots |
| Impact resistance |
IK08 in accordance with IEC 62208
IK10 in accordance with IEC 62262 |
| Insulating material | Polyester glass-fibre reinforced, Polycarbonate |
| Protection class | II |
| Type of mounting |
Wall mounting
4 screws |
| Installation location | Protected outdoor area (>1 km from sea) |
| Protection degree | IP65 |
| Amount of maximum power points (MPP) | 2 |
| DC Input + & - |
|
| Fuse type | Neither fuse cartridge nor holder |
| Max. number of DC inputs | per Maximum Power Point 2 inputs connected in parallel |
| Number of conduit inlets | 4 |
| Number of string inputs per MPP | ≤ 2 |
| Number of inputs | 2 |
| DC Output + & - |
|
| Max. number of DC outputs | per Maximum Power Point 1 output |
| Automatic reclosing after voltage drop | Yes |
| Number of operating cycles | 10000 |
| Control voltage | 100 V AC - 250 V AC 50/60Hz |
| Remote disconnector auxiliary contact |
|
| Remote disconnector control contact |
|
| Type of power circuit disconnection | Under voltage tripping or manual switch operation |
| Turn-off time | 1.5 s |
| Product information |
Intended use of the UPS: This UPS has been especially developed as a safety device for direct current (DC) photovoltaic installations. The DC disconnect switch is used to disconnect the connected strings of the installation in case of an emergency situation. Such an emergency situation could be in case of fire.
Normal operation: The UPS will automatically switch to the off position, breaking the DC connection between the solar panels and the inverter, after the AC power to the UPS is interrupted for longer than five seconds. The UPS will automatically switch to the on position, restoring the DC connection between the solar panels and the inverter, once the AC power to the UPS is restored longer than five seconds. Special Operation: If the temperature inside the UPS enclosure exceeds the 100°C, the UPS will automatically switch to OFF to protect the internal components and create a safe situation. When the installation is checked and the UPS is not affected, the UPS can be switched ON again by removal and re-applying the AC voltage to the UPS. The UPS will also automatically switch to OFF if there is an internal failure. If this occurs please try to reset the UPS by removal and re-applying the AC voltage to the UPS. Emergency switch not included.The SCIP number was assigned due to a lead content of more than 0.1 % of the net weight. Safe use instruction according to ECHA: The identification of the hazardous substance is sufficient to allow safe use of the article throughout its life cycle, including the service life, disassembly and waste/recycling phase |
| Approval/Certificate/Document of Conformity | [PV Next RD Declaration of Conformity](https://mdcop.weidmueller.com/mediadelivery/asset/900_301043) |
| Engineering Data | [CAD data -- STEP](https://mdcop.weidmueller.com/mediadelivery/asset/900_251072) |
| Eplan Data Portal | [Eplan data](https://dataportal.eplan.com/part-details/WEI.2778880000) |
| CADENAS eCATALOG | [CAX data](https://weidmueller-embedded.partcommunity.com?catalog=weidmueller_qs&part=2778880000) |
| WSCAD Universe | [WSCAD data](https://wscaduniverse.com/part-detail?manufacturerId=88&type=0&partNumber=2778880000&norm=0) |
| Technical Documentation |
[PVN1M2I4S1FXVXO1TXPX11](https://mdcop.weidmueller.com/mediadelivery/asset/900_245983)
[CAD data -- Schematic diagram](https://mdcop.weidmueller.com/mediadelivery/asset/900_290533) |
| User Documentation | [MANUAL PV NEXT RD DE/EN](https://mdcop.weidmueller.com/mediadelivery/asset/900_262445) |
| White paper |
[Fact Sheet DE PV CB Lastentrennschalter](https://mdcop.weidmueller.com/mediadelivery/asset/900_290540)
[Fact-Sheet EN PV CB Load break switch](https://mdcop.weidmueller.com/mediadelivery/asset/900_290549) [Fact Sheet DE PV Feuerwehrschalter](https://mdcop.weidmueller.com/mediadelivery/asset/900_310692) [Fact Sheet EN PV Fireman switch](https://mdcop.weidmueller.com/mediadelivery/asset/900_310693) |
| Catalogues | [Catalogues in PDF-format](LINK/Catalog.html) |
| ETIM 6.0 | EC002928 |
| ETIM 7.0 | EC002928 |
| ETIM 8.0 | EC003857 |
| ETIM 9.0 | EC003857 |
| ECLASS 9.0 | 22-57-92-03 |
| ECLASS 9.1 | 22-57-02-90 |
| ECLASS 10.0 | 22-57-02-90 |
| ECLASS 11.0 | 22-57-02-92 |
| ECLASS 12.0 | 22-57-02-92 |
| ECLASS 13.0 | 22-57-02-92 |
| ECLASS 14.0 | 22-57-02-92 |
| Long specification |
Automatic ON and OFF switching fireman switch for the connection to 2 MPP tracker in the inverter. MPP1: DC fireman switch: Connection of the fireman switch control line 230 VAC via cable glands (8-12mmØ) max. conductor cross-section: 1.5mm². Approval according to low voltage switchgear IEC 61439-1:2011 and EN 61439-2:2011 |
| Approvals |  |
| ROHS | Conform |