Electronic Solar Switch - DC circuit breaker for SMA inverters
Contents
1. 74812 7 Electronic Solar Switch ESS SMA Technologie AG 3 Electronic Solar Switch ESS With the Electronic Solar Switch disconnecting the inverter becomes a three step pro cess 1 Disconnecting the AC side 2 Pulling the Electronic Solar Switch 3 Disconnecting the DC plugs If the Electronic Solar Switch is not pulled off removal of the DC plug connectors can cause arcing which may cause personal injury and may damage the inverter connec tors Section 4 Operating the Electronic Solar Switch Page 10 describes how to dis connect the DC side DANGER Risk of lethal electric shock Safe disconnection from the solar generator can only be guaranteed once the Electronic Solar Switch handle and all DC plug connectors have been pulled off e After pulling off the Electronic Solar Switch immediately disconnect all DC plug connectors 3 1 Assembly The Electronic Solar Switch consists of a handle on the un derside of the inverter and a module inside the inverter A handle which covers the plugs on the solar generator is mounted on the underside of the inverter There is a plug inside the handle The plug of the Electronic Solar Switch is only visi ble when the handle is pulled out The plug is fitted in the handle as a float ing connector so that the handle does not catch when pulled from the inverter 8 ESS BENO74812 User manual SMA Technologie AG Electronic Solar Switc2. Exclusion of liability The general terms and conditions of delivery of SMA Technologie AG shall apply The content of this document is continually checked and amended where necessary However discrepancies cannot be excluded No guarantee is made for the completeness of this document The latest version is avail able online at www SMA de or from the usual sales channels Guarantee or liability claims for damages of any kind are excluded if they are caused by one or more of the following Damages during transportation Improper or inappropriate use of the product Operating the product in an unintended environment Operating the product whilst ignoring relevant statutory safety regulations in the deployment location Ignoring safety warnings and instructions contained in all documents relevant to the product Operating the product under incorrect safety or protection conditions Altering the product or supplied software without authority Product malfunction due to operating attached or neighboring devices beyond statutory limit values Unforeseen calamity or force majeure The use of supplied software produced by SMA Technologie AG is subject to the following conditions SMA Technologie AG rejects any liability for direct or indirect damages arising from the use of software developed by SMA Technologie AC This also applies to the provision or non provision of support activities Supplied software not developed by SMA
3. Technologie AG is subject to the respective licensing and liability agreements of the manvfacturer Warranty Guarantee The current guarantee conditions come enclosed with your device These are also available online at www SMA de and can be downloaded or are available on paper from the usual sales channels if required Trademarks All trademarks are recognized even if they are not marked separately Missing designations do not mean that a product or brand is not a registered trademark SMA Technologie AG Hannoversche Strasse 1 5 34266 Niestetal Germany Tel 49 561 9522 0 Fax 49 561 9522 100 www SMA de Email into SMA de 2004 to 2007 SMA Technologie AG All rights reserved User manual 55 74812 15 Sales Solar Technology SMA Technologie AG Hannoversche Strasse 1 5 34266 Niestetal Germany Tel 49 561 9522 4000 Fax 49 561 9522 4040 E mail sales SMA de Freecall 800 SUNNYBOY Freecall 800 78669269 AAT beh A Innovation in Systems Technology ia for the Success of Photovoltaics
4. the socket on the inverter so that it fits closely with the case e sure that it is positioned securely 5 Switch on the circuit breaker The inverter LEDs will glow if the solar generator is ready for operation 10 ESS BENO74812 User manual SMA Technologie AG Operating the Electronic Solar Switch 4 2 Disconnecting the Inverter Disconnecting the inverter is a three step process Proceed as follows 1 Switch off the circuit breaker 2 Pull off the Electronic Solar Switch Be sure to pull the handle downwards and slightly towards wall There is a contact in the middle which automatically triggers the switching process when the handle is pulled 3 Then immediately disconnect the solar generator from the inverter by removing all DC plug connec fors Be aware that the inverter is not voltage free be forehand DANGER High voltages in the inverter danger of death e Make sure that the inverter is voltage free before working on it User manual 55 74812 11 Inspection SMA Technologie AG 5 Inspection Check the Electronic Solar Switch for wear before plugging it in Check if the metal tongues inside the plug show brown discolorations Metal tongues The Electronic Solar Switch can no longer safely disconnect the DC side if one of the metal tongues is completely worn out see figure below Replacements for damaged El
5. ALMY Electronic Solar Switch DC circuit breaker for SMA inverters User manual ESS BENO74812 SMA Technologie AG Table of Contents Table KR ON NOU BR User manual of Contents Notes on this Manual 5 Validiy cakes epee een er ears 5 Target 5 Storing the 5 Symbols Used 6 Safety oere dv4s cf See ces E SOT dA 7 Electronic Solar Switch ESS 8 Assembly dunes Eee ir Eo Rut de d ER Rar eee 8 Installing the 9 Operating the Electronic Solar Switch 10 Connecting the solar generator DC 10 Disconnecting the 11 Inspection 12 Technical Data 13 S DM 14 ESS BENO74812 3 Table of Contents SMA Technologie AG 4 ESS BENO74812 User manual SMA Technologie AG Notes on this Manual 1 Notes on this Manual 1 1 Validity This user manual describes the correct use of the Electronic Solar Switch for disconnect ing a solar generator from an SMA inverter 1 2 Target Group Only qualitied electrical personnel may operate the Electronic Solar Switch and carry out work on the inverter 1 3 Storing the Documentation This manual ju
6. ectronic Solar Switch handles are available from SMA worn out metal tongues 12 ESS BENO74812 User manual SMA Technologie AG Technical Data 6 Technical Data Electrical lifetime min 50 switching processes in case of a short circuit with a nominal current of 35 A Max switching current 35A Max switching voltage 800 V Max PV power approx 12 kW Protection degree when plugged in IP65 Protection degree when unplugged IP21 User manual 55 74812 13 Contact SMA Technologie AG 7 Contact If you have any questions or technical problems concerning the Electronic Solar Switch please contact our hotline Please have the following information ready when you con tact SMA Inverter type Type and number of modules connected Communication type Inverter s serial number Inverter s blink code or display AMT Address SMA Technologie AG Hannoversche Strasse 1 5 34266 Niestetal Germany Tel 49 561 95 22 499 Fax 49 561 95 22 4699 serviceline SMA de www SMA de ESS BENO74812 User manual SMA Technologie AG Legal Notices The information contained in this document is the property of SMA Technologie AG Publishing its content either partly or in full requires the written consent of SMA Technologie AG Any internal company copying of the document for the purposes of evaluating the product or its correct implementation is allowed and does not require permission
7. h ESS Warning Risk of lethal electric shock Faultless functioning of the Electronic Solar Switch can only be guaranteed with a floating plug inside the device e Do not tighten the connector s screws in order to prevent them from catch ing when pulling off the device 3 2 Installing the Inverter 1 Installing the Inverter When installing the inverter be sure to observe all instructions in the inverter s installation guide It describes the special features relating to the installation with an Electronic Solar Switch Minimum Clearance Keep at least 50 cm free underneath the inverter so that you have enough space to pull out the Electronic Solar Switch Be User manual 55 74812 9 Operating the Electronic Solar Switch SMA Technologie AG 4 Operating the Electronic Solar Switch 4 1 Connecting the solar generator DC To connect the solar generator proceed as follows 1 Check the Electronic Solar Switch for wear as described in chapter 5 2 Connect the DC plug connectors Make sure the polarity is correct 3 Close all unused DC input sockets with the caps includ TEE ed in the delivery A Plug the Electronic Solar Switch into the socket on the MUULLLLLLLLL underside of the inverter CAUTION Incorrect plugging of the Electronic Solar Switch could cause high volt age and may damage the device Plug the handle tightly into
8. st as all other manuals for the inverter and its installed components must be kept in the immediate vicinity of the inverter and must be accessible at all times User manual 55 74812 5 Notes on this Manual SMA Technologie AG 1 4 Symbols Used The following three types of safety warnings and general information are used in this document A DANGER DANGER indicates a hazardous situation which if ignored will result in se rious injury or death A WARNING WARNING indicates a hazardous situation which if ignored could result in serious injury or death CAUTION N CAUTION indicates a situation which if ignored could result in damage to property Notice n A notice provides information which is important for the optimal operation of your product 6 ESS BENO74812 User manual SMA Technologie AG Safety 2 Safety A DANGER High voltages in inverter danger of death e Work on the inverter may only be carried out by qualified electrical per sonnel e Open and close the inverter only as indicated in the corresponding Instal lation Guide CAUTION N Entry of water and foreign matter into the inverter can cause irrepara ble damage Once the handle of the Electronic Solar Switch is pulled out the protection de gree of the inverter is reduced to IP21 e not operate the inverter with a pulled Electronic Solar Switch User manual 55
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