Sma SC 250U Manuale Utente

DISU_SCUS-IA-IUS111711 | 98-4009011 | Version 1.1USAccessories for Sunny CentralDisconnect Unit forSunny Central 250U/500U/500HE-US/CA andSunny Centra

 SMA America, LLC10 DISU_SCUS-IA-IUS111711 Installation Guide

SMA America, LLC 1 Notes on this manualInstallation Guide DISU_SCUS-IA-IUS111711 111 Notes on this manualThis manual describes the installation and t

2 Safety SMA America, LLC12 DISU_SCUS-IA-IUS111711 Installation Guide2 SafetyThis section describes general safety regulations which must be observed

SMA America, LLC 2 SafetyInstallation Guide DISU_SCUS-IA-IUS111711 13• It is prohibited to connect the Sunny Central 500HE-US/CA or Sunny Central CP

2 Safety SMA America, LLC14 DISU_SCUS-IA-IUS111711 Installation Guide8"3/*/(Failure to follow the manual, the operating instructions and the saf

SMA America, LLC 3 The Disconnect Unit for Sunny CentralInstallation Guide DISU_SCUS-IA-IUS111711 153 The Disconnect Unit for Sunny Central3.1 Operat

4 Scope of delivery and storage SMA America, LLC16 DISU_SCUS-IA-IUS111711 Installation Guide4 Scope of delivery and storage4.1 Unpacking and inspecti

SMA America, LLC 4 Scope of delivery and storageInstallation Guide DISU_SCUS-IA-IUS111711 174.3 Storage/05*$&Improper storage can cause moisture

5 Installation of the Disconnect Unit SMA America, LLC18 DISU_SCUS-IA-IUS111711 Installation Guide5 Installation of the Disconnect Unit5.1 Choosing t

SMA America, LLC 5 Installation of the Disconnect UnitInstallation Guide DISU_SCUS-IA-IUS111711 195.1.3 Position of the mounting holes and bottom ent

5 Installation of the Disconnect Unit SMA America, LLC20 DISU_SCUS-IA-IUS111711 Installation Guide5.1.4 Minimum clearancesFigure6:Minimum clearance

SMA America, LLC 5 Installation of the Disconnect UnitInstallation Guide DISU_SCUS-IA-IUS111711 215.1.5 Dimensions and weightDisconnect Unit for Sunn

5 Installation of the Disconnect Unit SMA America, LLC22 DISU_SCUS-IA-IUS111711 Installation GuideFigure9:Dimensions Disconnect Unit for Sunny Cent

SMA America, LLC 5 Installation of the Disconnect UnitInstallation Guide DISU_SCUS-IA-IUS111711 23Disconnect Unit for Sunny Central 500HE-US/CA and S

5 Installation of the Disconnect Unit SMA America, LLC24 DISU_SCUS-IA-IUS111711 Installation GuideFigure11:Dimensions Disconnect Unit for Sunny Cen

SMA America, LLC 5 Installation of the Disconnect UnitInstallation Guide DISU_SCUS-IA-IUS111711 255.3 Opening the Disconnect Unit☐ The front consists

5 Installation of the Disconnect Unit SMA America, LLC26 DISU_SCUS-IA-IUS111711 Installation Guide7. Loosen all screws except for the 4 screws at the

SMA America, LLC 5 Installation of the Disconnect UnitInstallation Guide DISU_SCUS-IA-IUS111711 2710. Unhook the front plate of the enclosure by pull

5 Installation of the Disconnect Unit SMA America, LLC28 DISU_SCUS-IA-IUS111711 Installation Guide1. Determine the entering side of the cables. There

SMA America, LLC 5 Installation of the Disconnect UnitInstallation Guide DISU_SCUS-IA-IUS111711 295.5 Inserting cables into the Disconnect Unit1. If

SMA America, LLC Legal RestrictionsInstallation Guide DISU_SCUS-IA-IUS111711 3Copyright © 2011 SMA America,LLC. All rights reserved.No part of this d

6 Electrical connection SMA America, LLC30 DISU_SCUS-IA-IUS111711 Installation Guide6 Electrical connection6.1 Overview electrical connections6.1.1 D

SMA America, LLC 6 Electrical connectionInstallation Guide DISU_SCUS-IA-IUS111711 316.1.2 Disconnect Unit for Sunny Central 500HE-US/CA and SunnyCen

6 Electrical connection SMA America, LLC32 DISU_SCUS-IA-IUS111711 Installation Guide6.2 Cable requirements6.2.1 Cable requirements for DC, AC and PE

SMA America, LLC 6 Electrical connectionInstallation Guide DISU_SCUS-IA-IUS111711 33Maximum numbers of DC inputs6.3 Connecting DC cables to the Disco

6 Electrical connection SMA America, LLC34 DISU_SCUS-IA-IUS111711 Installation GuideConnection sequence to inverter:For good access to all DC homerun

SMA America, LLC 6 Electrical connectionInstallation Guide DISU_SCUS-IA-IUS111711 35Connection sequence from PV-plant:For good access to all DC home

6 Electrical connection SMA America, LLC36 DISU_SCUS-IA-IUS111711 Installation Guide6.3.2 Connecting DC cables to DC load break switch by screw termi

SMA America, LLC 6 Electrical connectionInstallation Guide DISU_SCUS-IA-IUS111711 37Figure17:Mounted screw terminal1. Strip the cable by about 11⁄

6 Electrical connection SMA America, LLC38 DISU_SCUS-IA-IUS111711 Installation Guide6.3.3 Connecting DC cables to DC load break switch by cable lugsF

SMA America, LLC 6 Electrical connectionInstallation Guide DISU_SCUS-IA-IUS111711 39Figure19:Mounted cable lugsProcedure of connecting2. Position t

Important Safety Instructions SMA America, LLC4 DISU_SCUS-IA-IUS111711 Installation GuideIMPORTANT SAFETY INSTRUCTIONSSAVE THESE INSTRUCTIONSThis manu

6 Electrical connection SMA America, LLC40 DISU_SCUS-IA-IUS111711 Installation Guide6.4 Connecting AC cables to the Disconnect UnitRefer to section 6

SMA America, LLC 6 Electrical connectionInstallation Guide DISU_SCUS-IA-IUS111711 416.4.2 Arranging AC cablesThis section explains how to arrange the

6 Electrical connection SMA America, LLC42 DISU_SCUS-IA-IUS111711 Installation GuideFigure22:AC cable arrangement 2Figure23:AC cable arrangement

SMA America, LLC 6 Electrical connectionInstallation Guide DISU_SCUS-IA-IUS111711 43Figure25:Overview AC connection to power distribution grid with

6 Electrical connection SMA America, LLC44 DISU_SCUS-IA-IUS111711 Installation GuideFigure27:Overview AC connection to power distribution grid with

SMA America, LLC 6 Electrical connectionInstallation Guide DISU_SCUS-IA-IUS111711 45Figure29:Overview connection sequence AC switch to power distri

6 Electrical connection SMA America, LLC46 DISU_SCUS-IA-IUS111711 Installation GuideFigure31:Overview AC connection to power distribution grid with

SMA America, LLC 6 Electrical connectionInstallation Guide DISU_SCUS-IA-IUS111711 47Figure33:Overview AC connection to power distribution grid with

6 Electrical connection SMA America, LLC48 DISU_SCUS-IA-IUS111711 Installation Guide6.4.4 Overview AC connection to the inverterAC connection Disconn

SMA America, LLC 6 Electrical connectionInstallation Guide DISU_SCUS-IA-IUS111711 49AC connection Disconnect Unit for Sunny Central 500HE-US/CA/Sunny

SMA America, LLC Important Safety InstructionsInstallation Guide DISU_SCUS-IA-IUS111711 5Other symbols in this documentIn addition to the safety and h

6 Electrical connection SMA America, LLC50 DISU_SCUS-IA-IUS111711 Installation GuideFigure39:Arrangement of elements AC connection to inverter with

SMA America, LLC 6 Electrical connectionInstallation Guide DISU_SCUS-IA-IUS111711 516.4.5 Connecting AC cables to busbars%"/(&3High voltages

6 Electrical connection SMA America, LLC52 DISU_SCUS-IA-IUS111711 Installation GuideConnecting AC cables to busbars with screw terminalsFigure41:Co

SMA America, LLC 6 Electrical connectionInstallation Guide DISU_SCUS-IA-IUS111711 53If necessary, tighten the screw terminal to the busbar again usin

6 Electrical connection SMA America, LLC54 DISU_SCUS-IA-IUS111711 Installation GuideConnecting procedure2. Position the cable lug or lugs on the busb

SMA America, LLC 6 Electrical connectionInstallation Guide DISU_SCUS-IA-IUS111711 55Figure43:Overview busbar protective earthPosition DescriptionA

6 Electrical connection SMA America, LLC56 DISU_SCUS-IA-IUS111711 Installation Guide6.5.2 Connecting protective earth to busbarYou can connect up to

SMA America, LLC 6 Electrical connectionInstallation Guide DISU_SCUS-IA-IUS111711 576.6 Closing the Disconnect Unit☐ The handles on the front plate o

6 Electrical connection SMA America, LLC58 DISU_SCUS-IA-IUS111711 Installation Guide3. Tip the front plate of the enclosure with two persons in such

SMA America, LLC 6 Electrical connectionInstallation Guide DISU_SCUS-IA-IUS111711 599. Make sure that all switches function properly by switching the

General Warnings SMA America, LLC6 DISU_SCUS-IA-IUS111711 Installation GuideGeneral warnings8"3/*/(All electrical installations must be done in a

6 Electrical connection SMA America, LLC60 DISU_SCUS-IA-IUS111711 Installation Guide6.7 Affixing information about grounded path1. Determine if the P

SMA America, LLC 7 Operating the Disconnect UnitInstallation Guide DISU_SCUS-IA-IUS111711 617 Operating the Disconnect Unit7.1 Arrangement of the swi

7 Operating the Disconnect Unit SMA America, LLC62 DISU_SCUS-IA-IUS111711 Installation Guide7.2 Switching on the Disconnect Unit1. Turn all switches

SMA America, LLC 7 Operating the Disconnect UnitInstallation Guide DISU_SCUS-IA-IUS111711 637.3 Switching off the Disconnect Unit1. For Disconnect Un

7 Operating the Disconnect Unit SMA America, LLC64 DISU_SCUS-IA-IUS111711 Installation Guide7.4 Securing against reconnection – Lock-Off functionFigu

SMA America, LLC 7 Operating the Disconnect UnitInstallation Guide DISU_SCUS-IA-IUS111711 65 2. For Disconnect Unit for Sunny Central 500HE-US/CA and

8 Technical data SMA America, LLC66 DISU_SCUS-IA-IUS111711 Installation Guide8 Technical dataFor more electrical ratings than the shown here refer to

SMA America, LLC 8 Technical dataInstallation Guide DISU_SCUS-IA-IUS111711 67General dataFront plate of the enclosureAmbient conditions8.2 Disconnect

8 Technical data SMA America, LLC68 DISU_SCUS-IA-IUS111711 Installation GuideGeneral dataFront plate of the enclosureAmbient conditions8.3 Disconnect

SMA America, LLC 8 Technical dataInstallation Guide DISU_SCUS-IA-IUS111711 69AC connection dataGeneral dataFront plate of the enclosureAmbient condit

SMA America, LLC Table of ContentsInstallation Guide DISU_SCUS-IA-IUS111711 7Table of Contents1 Notes on this manual. . . . . . . . . . . . . . . . .

9 Contact SMA America, LLC70 DISU_SCUS-IA-IUS111711 Installation Guide9 ContactIf you have technical problems concerning our products, contact the SM

 SMA America, LLC74 DISU_SCUS-IA-IUS111711 Installation Guide4.""NFSJDB--$XXXSMAANFSJDBDPN

Table of Contents SMA America, LLC8 DISU_SCUS-IA-IUS111711 Installation Guide6 Electrical connection. . . . . . . . . . . . . . . . . . . . . . . . .

SMA America, LLC Table of ContentsInstallation Guide DISU_SCUS-IA-IUS111711 98.2 Disconnect Unit for Sunny Central 500HE-US/CA. . . . . . . . . . 678.