SMA MULTICLUSTER BOX 36 Operating Manual
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SMA MULTICLUSTER BOX 36 Operating Manual

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Operating Manual
MULTICLUSTER BOX 36
MC_BOX_36-BE-en-20 | Version 2.0
ENGLISH

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Summary of Contents for SMA MULTICLUSTER BOX 36

  • Page 1 Operating Manual MULTICLUSTER BOX 36 MC_BOX_36-BE-en-20 | Version 2.0 ENGLISH...
  • Page 2 Legal Provisions The information contained in this document is the property of SMA Solar Technology AG. Publishing its content, either partially or in full, requires the written permission of SMA Solar Technology 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.

  • Page 3: Table Of Contents

    5.1 Multicluster Box 36 ........
  • Page 4 Table of contents SMA Solar Technology AG 7.9 Grounding the Multicluster System ......33 7.10 Connecting the Control, Measuring and Data Cables ... 34 7.11 Mounting the Contact Hazard Protection Cover .

  • Page 5: Information On This Document

    (see Section 2.2 "Skills of Qualified Persons", page 8). Additional Information You can find more information on the SMA multicluster technology and the configurable parameters of the Sunny Island in the documentation of the Sunny Island 5048 / 6.0H / 8.0H.
  • Page 6 1  Information on this Document SMA Solar Technology AG Abbreviations Abbreviation Designation Explanation Alternating Current Direct Current Electromagnetic Compatibility Mean Sea Level Photovoltaics State of Charge State of charge of the battery State of Health Battery capacity available for consumption...

  • Page 7: Safety

    2 Safety 2.1 Intended Use The Multicluster Box is a component of the SMA multicluster technology for off-grid systems. The Multicluster Box is a main AC distribution board to which you can connect up to twelve three-phase clusters. Each cluster consists of three Sunny Island inverters of the same device type with parallel DC-side connection.

  • Page 8: Skills Of Qualified Persons

    The Multicluster Box is designed for use at altitudes of up to 2,000 m above mean sea level. If you wish to use the Multicluster Box at altitudes above 2,000 m, contact SMA Solar Technology AG (see Section 13 "Contact", page 44).

  • Page 9: Safety Precautions

    SMA Solar Technology AG 2  Safety 2.3 Safety Precautions This section contains safety precautions that must be observed at all times when working on or with the product. To prevent personal injury or property damage and to ensure long-term operation of the product, read this section carefully and follow all safety precautions at all times.

  • Page 10: Scope Of Delivery

    3  Scope of Delivery SMA Solar Technology AG 3 Scope of Delivery Check the scope of delivery for completeness and any external damage. Contact your distributor if the scope of delivery is incomplete or damaged. Figure 2: Components included in the scope of delivery...

  • Page 11: Additionally Required Materials

    SMA Solar Technology AG 4  Additionally Required Materials 4 Additionally Required Materials Material Number of units Explanation Screws and screw anchors For securing the base of the Multicluster Box Terminal lugs M12 For connecting the generator, PV plant and loads Connection cables, installation ‒...

  • Page 12: Product Description

    5 Product Description 5.1 Multicluster Box 36 The Multicluster Box is a component of the SMA multicluster technology for off-grid systems. The Multicluster Box is a main AC distribution board to which you can connect up to twelve three-phase clusters. Each cluster consists of three Sunny Island inverters of the same device type with parallel DC-side connection.
  • Page 13 SMA Solar Technology AG 5  Product Description Symbols on the Type Label Symbol Explanation Danger to life due to high voltages The product operates at high voltages. All work on the product must be carried out by qualified persons only.

  • Page 14: Installation

    All local requirements concerning minimum passage widths and escape routes must be observed. Climatic conditions must be met (see Section 12 "Technical Data", page 41). The mounting location must be below 2,000 m above MSL. For altitudes over 2,000 m above MSL, contact the SMA Service Line. MC_BOX_36-BE-en-20 Operating Manual...
  • Page 15 SMA Solar Technology AG 6  Installation Observe minimum clearances: Figure 3: Minimum clearances Observe the permitted mounting position: Figure 4: Permitted and prohibited mounting positions Operating Manual MC_BOX_36-BE-en-20...

  • Page 16: Preparing The Mounting Location

    6  Installation SMA Solar Technology AG 6.2 Preparing the Mounting Location Figure 5: Outside base measurements and dimensions of the drill holes Additionally required mounting material (not included in the scope of delivery): Four suitable screw anchors to fasten the Multicluster Box Procedure: 1.

  • Page 17: Transport

    SMA Solar Technology AG 6  Installation 6.3 Transport 6.3.1 Transport Options Figure 6: Transport options The Multicluster Box is delivered on a Euro pallet. You can use the following means of transport to lift the Multicluster Box off the Euro pallet: Α...

  • Page 18: Transporting And Mounting The Multicluster Box

    6  Installation SMA Solar Technology AG 2. In each corner, attach one lifting lug with one sealing disc (torque: 10 Nm to 35 Nm). 6.3.3 Transporting and Mounting the Multicluster Box Danger of crushing if the raised Multicluster Box tips over, falls, or sways during lifting The Multicluster Box can topple or fall if it is lifted and transported carelessly or hastily.
  • Page 19 SMA Solar Technology AG 6  Installation Damage to the Multicluster Box due to inappropriate transport If the Multicluster Box is set down on uneven surfaces, it may cause buckling so that the doors will no longer close properly. This can lead to moisture and dust penetrating the Multicluster Box.

  • Page 20: Electrical Connection

    7  Electrical Connection SMA Solar Technology AG 7 Electrical Connection 7.1 Overview of the Connection Area 7.1.1 Terminals Figure 7: Position of the terminals Object Description Fuse switch =MC-F1 Generator for connecting the line conductors of the generator Busbar =MC-X1 for connecting the neutral conductor of the generator...

  • Page 21: Cable Entries In The Floor

    SMA Solar Technology AG 7  Electrical Connection Object Description Busbars =MC-X3 PV-System for connecting the line conductors and the neutral conductor of the PV plant RJ45 pin connectors for connecting the control and measuring cables and the data cable Circuit breakers for the Sunny Island inverters Connection area for connecting the Sunny Island power cables 7.1.2 Cable Entries in the Floor...

  • Page 22: Grounding Busbar

    7  Electrical Connection SMA Solar Technology AG 7.1.3 Grounding Busbar Figure 9: Busbar for connecting the grounding conductors Object Description Grounding connection generator Grounding connection loads Grounding connection PV plant 7.2 Opening the Multicluster Box 1. Unlock the Multicluster Box with the switch cabinet key supplied.

  • Page 23: Removing Protection Against Contact

    SMA Solar Technology AG 7  Electrical Connection 7.3 Removing Protection against Contact Figure 10: Positions of the attachment points of the contact hazard protection cover Position Number Description Contact hazard protection cover of the Multicluster Box Positions of the attachment points Electrostatic discharge can cause irreparable damage to the Multicluster Box Α...

  • Page 24: Inserting And Preparing The Connection Cables

    7  Electrical Connection SMA Solar Technology AG 7.4 Inserting and Preparing the Connection Cables Always proceed as follows to insert the connection cables of the generator, the loads, the PV plant and the Sunny Island inverters into the Multicluster Box. Insert the control, measurement and data cables as described in Section 7.10, page 34.
  • Page 25 SMA Solar Technology AG 7  Electrical Connection Procedure: 1. According to the type of cable routing and the installation conditions, determine the required fuse link for the fuse switch. Remember that the permitted fuse rating is 100 A to 500 A.
  • Page 26 7  Electrical Connection SMA Solar Technology AG 12. Turn the handle of the fuse holder up. 13. Connect the grounding conductor to the grounding busbar (AF 19, torque: 25 Nm). Make sure to adhere to the following screw assembly: screw head / grounding busbar / terminal lug / fender washer / spring washer / nut.

  • Page 27: Connecting The Loads

    SMA Solar Technology AG 7  Electrical Connection 7.6 Connecting the Loads The line conductors of the loads are routed via the fuse switch in the Multicluster Box. The fuses are necessary to protect the output cable from overloads. 500 A LV/HRC size 3 fuse links are installed in the fuse switch by default.
  • Page 28 7  Electrical Connection SMA Solar Technology AG 5. Release the screws on the cover of the terminals and remove the cover. Use a PH 2 screwdriver. 6. Connect the line conductors to the fuse switch MC-F2 Loads according to the labels (AF 19, torque: 25 Nm).

  • Page 29: Connecting The Pv Plant

    SMA Solar Technology AG 7  Electrical Connection 13. Connect the neutral conductor to the busbar MC-X2 (AF 19, torque: 25 Nm). Make sure to adhere to the following screw assembly: screw head / terminal of neutral conductor / terminal lug / fender washer / spring washer / nut.
  • Page 30 7  Electrical Connection SMA Solar Technology AG Procedure: 1. Insert the connection cables in the Multicluster Box and prepare (see Section 7.4, page 24). 2. Connect the grounding conductor to the grounding busbar (AF 19, torque: 25 Nm). Make sure to adhere to the following screw assembly: screw head / terminal of neutral conductor / terminal lug / fender washer / spring washer / nut.

  • Page 31: Connecting The Sunny Island Inverters

    SMA Solar Technology AG 7  Electrical Connection 7.8 Connecting the Sunny Island Inverters Cable protection Each Sunny Island connection cable is fused with a C40 A circuit breaker. Optimum mounting location The ambient temperature of the Multicluster Box influences the tripping threshold of the circuit breakers for the Sunny Island inverters.
  • Page 32 7  Electrical Connection SMA Solar Technology AG 3. Remove the cover of the Sunny Island connection area. Retain cover and screws for later use. 4. To connect the Sunny Island inverters of the main cluster: Α Connect slave 2 to the terminals Main Cluster Slave 2 as follows: –...

  • Page 33: Grounding The Multicluster System

    SMA Solar Technology AG 7  Electrical Connection Α Connect the master to the terminals Main Cluster Master as follows: – Connect the line conductor to the terminal 1 :L1. – Connect the neutral conductor to the terminal 2 :N. – Connect the grounding conductor to the terminal 3 :PE.

  • Page 34: Connecting The Control, Measuring And Data Cables

    7  Electrical Connection SMA Solar Technology AG 7.10 Connecting the Control, Measuring and Data Cables The Multicluster Box transfers voltage and current measurement signals to the Sunny Island inverters of the main cluster. These signals are transferred via the red control and measuring cables supplied.

  • Page 35: Mounting The Contact Hazard Protection Cover

    SMA Solar Technology AG 7  Electrical Connection 4. Plug the black data cable into the pin connector ComSync IN. 5. Lay the control and measuring cables and the data cable in the four circular recesses of the cable support sleeve .

  • Page 36: Commissioning The Multicluster Box

    8  Commissioning the Multicluster Box SMA Solar Technology AG 8 Commissioning the Multicluster Box Requirements: The Multicluster Box must be properly mounted. The multicluster system must be grounded outside the Multicluster Box on either the generator side or the load side.

  • Page 37: Disconnecting The Multicluster System From

    SMA Solar Technology AG 9  Disconnecting the Multicluster System from Voltage Sources 9 Disconnecting the Multicluster System from Voltage Sources 1. Switch off all loads. 2. Stop the multicluster system at the master of the main cluster (see Sunny Island documentation).

  • Page 38: Maintenance

    Multicluster Box, shows discoloration or visible changes, replace it. Disconnect the Multicluster Box from all voltage sources (see Section 9, page 37). Α If any internal wiring or a fuse element is discolored or shows visible changes, inform the SMA Service Line. MC_BOX_36-BE-en-20 Operating Manual...
  • Page 39 SMA Solar Technology AG 10  Maintenance Maintenance work Recommended maintenance interval Check the Multicluster Box for corrosion. 12 months Α Use touch-up sticks, paint brushes, spray paint or, alternatively, 2K-PUR acrylic paint to repair minor surface damage. Observe the relevant instructions of the paint manufacturer.

  • Page 40: Decommissioning

    11  Decommissioning SMA Solar Technology AG 11 Decommissioning 11.1 Disassembling the Multicluster Box Danger to life due to electric shock High voltages are present in the Multicluster Box and the multicluster system. Touching live components results in death or serious injury due to electric shock.

  • Page 41: Technical Data

    SMA Solar Technology AG 12  Technical Data 12 Technical Data Load Connection Number 1 x three-phase Rated power 300 kW Rated grid voltage between L and N 230 V Rated grid voltage between L1 and L2 400 V AC voltage range between L1 and N 172.5 V to 250 V...
  • Page 42 12  Technical Data SMA Solar Technology AG Generator Connection Number 1 x three-phase Rated grid input power 300 kW AC input current 3 x 435 A Maximum relative short-circuit current 10 kA Diameter of the screws for cable connection 12 mm...
  • Page 43 SMA Solar Technology AG 12  Technical Data General Data Number of line conductors Permitted grid configuration Width x height x depth 1,200 mm x 2,000 mm x 800 mm Weight 400 kg Exterior structure Cabinet Rated voltage of auxiliary circuits...

  • Page 44: Contact

    13  Contact SMA Solar Technology AG 13 Contact If you have technical problems concerning our products, contact the SMA Service Line. We need the following data in order to provide you with the necessary assistance: Α Type of Multicluster Box Α...
  • Page 45 Hybrid Energy Solutions Sunny Island : +33 472 09 04 42 Power Plant Solutions Sunny Central : +33 472 09 04 43 India SMA Solar India Pvt. Ltd. +91 22 61713888 Mumbai Italia SMA Italia S.r.l. +39 02 8934-7299 Milano Κύπ...
  • Page 46 +86 10 5670 1350 Company Ltd. 北京 SMA Japan K.K. +81 3 3451 9530 +971 2 698-5080 SMA Middle East LLC Other International SMA Service Line Toll free worldwide: 00800 SMA SERVICE countries (+800 762 7378423) Niestetal MC_BOX_36-BE-en-20 Operating Manual...
  • Page 48 SMA Solar Technology www.SMA-Solar.com...

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