SMA Multicluster Box 6.3 Operating Manual
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SMA Multicluster Box 6.3 Operating Manual

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Operating Manual
Multicluster Box 6.3 ⁄ 12.3
MC-BOX-6_12-BE-en-20 | Version 2.0
ENGLISH

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Summary of Contents for SMA Multicluster Box 6.3

  • Page 1 Operating Manual Multicluster Box 6.3 ⁄ 12.3 MC-BOX-6_12-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 6.3........
  • Page 4 10 Decommissioning ........37 10.1 Disassembling the Multicluster Box 6.3 ..... . . 37 10.2 Disassembling the Multicluster Box 12.3.

  • Page 5: Information On This Document

    Indicates a requirement for meeting a specific goal ☑ Desired result ✖ A problem that might occur Nomenclature Complete designation Designation in this document Multicluster Box 6.3-11 / 12.3 Multicluster Box Sunny Island multicluster system Multicluster system Operating Manual MC-BOX-6_12-BE-en-20...
  • Page 6 1  Information on this Document SMA Solar Technology AG Abbreviations Abbreviation Designation Explanation Alternating Current ‒ Direct Current ‒ Photovoltaics ‒ MC-BOX-6_12-BE-en-20 Operating Manual...

  • Page 7: Safety

    SMA Solar Technology AG 2  Safety 2 Safety 2.1 Intended Use The Multicluster Box is a device of a multicluster system. It is used to establish stand-alone grids with several Sunny Island inverters. The Multicluster Box is a stationary switching device combination (AC main distributor) to which you can connect the Sunny Island inverters, the loads, the generator and another power generation system such as a PV system.

  • 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. The Multicluster Box is designed for indoor use only.

  • Page 9: Safety Precautions

    • Disconnect the multicluster system from all voltage sources before carrying out any work on the Multicluster Box (see Section 8, page 35). Problems occurring while performing the described activities Should you encounter problems while performing the activities described in this document, contact SMA Solar Technology AG (see Section 13 "Contact", page 44). Operating Manual MC-BOX-6_12-BE-en-20...

  • 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 externally visible damage. Contact your distributor if the scope of delivery is incomplete or damaged. Multicluster Box 6.3 Position...
  • Page 11 SMA Solar Technology AG 3  Scope of Delivery Multicluster Box 12.3 Position Quantity Description Multicluster Box Switch cabinet key Data cable for communication (5 m, black) Data cable for control and measuring signals (5 m, red) Operating manual Sealing ring with washer (diameter: 6 mm)

  • Page 12: Type Label

    The type label clearly identifies the product. The type label is located on the right-hand side of the enclosure. You will find the following information on the type label: • Address of SMA Solar Technology AG • Device type (Type) •...

  • Page 13: Mounting And Installation

    SMA Solar Technology AG 5  Mounting and Installation 5 Mounting and Installation 5.1 Multicluster Box 6.3 5.1.1 Selecting the Mounting Location Danger to life due to fire or explosion Despite careful construction, electronic devices can cause fires if they are not installed properly.

  • Page 14: Mounting The Multicluster Box 6.3 On The Wall

    5  Mounting and Installation SMA Solar Technology AG 5.1.2 Mounting the Multicluster Box 6.3 on the Wall Danger of crushing or damage to the Multicluster Box The Multicluster Box can fall down as a result of improper transport and cause severe crushing injuries.
  • Page 15 SMA Solar Technology AG 5  Mounting and Installation 3. Open the Multicluster Box with the switch cabinet key included in the delivery. Damage to the Multicluster Box Dust and moisture can penetrate the Multicluster Box due to missing seals. • Position the sealing disc (C).

  • Page 16: Multicluster Box 12.3

    5  Mounting and Installation SMA Solar Technology AG 5.2 Multicluster Box 12.3 5.2.1 Selecting a Mounting Location Danger to life due to fire or explosion Despite careful construction, electronic devices can cause fires if they are not installed properly. This can result in death or serious injury.

  • Page 17: Transporting The Multicluster Box 12.3

    SMA Solar Technology AG 5  Mounting and Installation 5.2.2 Transporting the Multicluster Box 12.3 Transport options: The Multicluster Box is delivered on a Euro pallet. You can use the following means of transport to lift the Multicluster Box from the Euro pallet: •...

  • Page 18: Installing The Multicluster Box 12.3

    5  Mounting and Installation SMA Solar Technology AG Procedure: 1. Remove all fastening screws from the kick plates at the front and rear. 2. Set the screws aside. These screws will be needed later to reattach the kick plates. 3. Remove the kick plates and set them aside.
  • Page 19 SMA Solar Technology AG 5  Mounting and Installation 2. Only attach the Multicluster Box to the wall, if you want to secure it additionally. • Mark the positions of the drill holes for attaching the rear panel. • Drill holes at the marked positions.

  • Page 20: Electrical Connection

    6  Electrical Connection SMA Solar Technology AG 6 Electrical Connection 6.1 Overview of the Connection Area 6.1.1 Interior View of the Multicluster Box 6.3 Object Description RJ45 pin connectors for connecting the data cables for control and measuring signals RJ45 pin connector for connecting the data cable for communication...

  • Page 21: Bottom View Of The Multicluster Box 6.3

    Terminals X4 All Clusters for connecting the Sunny Island inverters (N, grounding conductor) Terminal X5 Equipotential Busbar for connecting the grounding conductor (for grounding the entire multicluster system) 6.1.2 Bottom View of the Multicluster Box 6.3 Object Description Flange plate with membranes for inserting the connection cables...

  • Page 22: Interior View Of The Multicluster Box 12.3

    6  Electrical Connection SMA Solar Technology AG 6.1.3 Interior View of the Multicluster Box 12.3 MC-BOX-6_12-BE-en-20 Operating Manual...

  • Page 23: Bottom View Of The Multicluster Box 12.3 (Without Base)

    SMA Solar Technology AG 6  Electrical Connection Object Description RJ45 pin connectors for connecting the data cables for control and measuring signals RJ45 pin connector for connecting the data cable for communication Cable support rail for strain relief of the cables...

  • Page 24: Preparing The Cables

    If the mechanical stress on the connection cables is too high, the connection cables get loose and damage the Multicluster Box. • Secure the connection cables of the Multicluster Box 6.3 externally, e.g. by means of cable support rails. • Secure the connection cables in the Multicluster Box 12.3 in the provided cable support rail.

  • Page 25: Connecting The Generator

    However, you also have the option of connecting it to the utility grid. The line conductors L1, L2 and L3 are routed via a fuse switch-disconnector in the Multicluster Box. Fuse links with a nominal current of 80 A (Multicluster Box 6.3) or 160 A (Multicluster Box 12.3) are installed ex works.

  • Page 26: Connecting The Loads

    The line conductors L1, L2 and L3 are routed via a fuse switch-disconnector in the Multicluster Box. Fuse links with a nominal current of 80 A (Multicluster Box 6.3) or 160 A (Multicluster Box 12.3) are installed ex works. The fuse switch-disconnectors are required to protect the output cables from overload in stand-alone grid operation.

  • Page 27: Connecting The Pv System

    SMA Solar Technology AG 6  Electrical Connection 6.3.3 Connecting the PV System Cable protection The Multicluster Box does not replace the distribution board of the PV system (PV main distribution board). Install a circuit breaker and if necessary a residual-current device between the Multicluster Box and the PV system for protection and disconnection purposes.

  • Page 28: Connecting The Sunny Island

    6.3.4 Connecting the Sunny Island Fuse of the Sunny Island inverters Each Sunny Island is fused by a circuit breaker inside the Multicluster Box. • Multicluster Box 6.3-11: 40 A • Multicluster Box 12.3: 32 A Optimum mounting location If the Multicluster Box and the Sunny Island inverters are operated under different ambient conditions, the circuit breakers for the Sunny Island inverters may trip more often.
  • Page 29 SMA Solar Technology AG 6  Electrical Connection Cable requirement: ☐ Conductor material: copper Procedure: 1. Prepare the connection cables (see Section 6.2 "Preparing the Cables", page 24). 2. Connect the grounding conductor and N of all Sunny Island inverters to the terminal X4 All Clusters as labeled.

  • Page 30: Grounding The Multicluster System

    6  Electrical Connection SMA Solar Technology AG 4. Connect Extension Cluster 1 to the circuit breakers F4.4 – F4.6 Ext. Cluster 1. For the connection of Extension Cluster 1, proceed as described under point 3. 5. Connect Extension Cluster 2 to the circuit breakers F4.7 – F4.9 Ext. Cluster 2.

  • Page 31: Data Cable Connection

    SMA Solar Technology AG 6  Electrical Connection 6.4 Data Cable Connection The Multicluster Box transfers voltage and current measuring signals to the Sunny Island inverters. These signals are transferred via the supplied data cables for control and measuring signals (red).
  • Page 32 6  Electrical Connection SMA Solar Technology AG 4. Loosen the screws of the two-part cable feed-through. 5. Remove the half without the T-shaped fastening pieces. 6. Lay the data cable for communication and the data cable for control and measuring signals of sufficient...

  • Page 33: Connecting The Data Cables For Control And Measuring Signals

    SMA Solar Technology AG 6  Electrical Connection 6.4.2 Connecting the Data Cables for Control and Measuring Signals Procedure: 1. Plug the data cable for control and measuring signals (red) for the master of the main cluster in the pin connector Mstr/L1.

  • Page 34: Commissioning The Multicluster Box

    7  Commissioning the Multicluster Box SMA Solar Technology AG 7 Commissioning the Multicluster Box Requirements: ☐ The Multicluster Box must be properly mounted or installed. ☐ The multicluster system must be grounded outside the Multicluster Box on either the generator side or the load side.

  • Page 35: Disconnecting The Multicluster System From

    SMA Solar Technology AG 8  Disconnecting the Multicluster System from Voltage Sources 8 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 documentation of the Sunny Island).

  • Page 36: Maintenance

    Disconnect the Multicluster Box from all voltage sources (see Section 8, page 35). • If any internal wiring or a fuse element is discolored or shows visible changes, inform the SMA Service Line. Check the Multicluster Box for corrosion. Twelve months •...

  • Page 37: Decommissioning

    SMA Solar Technology AG 10  Decommissioning 10 Decommissioning 10.1 Disassembling the Multicluster Box 6.3 Danger of crushing limbs and damage to the Multicluster Box The Multicluster Box can fall down as a result of improper transport and cause severe crushing injuries.

  • Page 38: Technical Data Of The Multicluster Box 6.3

    11  Technical Data of the Multicluster Box 6.3 SMA Solar Technology AG 11 Technical Data of the Multicluster Box 6.3 Load Connection Quantity 1 x three-phase Rated power 55 kW Rated operating voltage between L and N 230 V Rated operating voltage between L1 and L2...
  • Page 39 SMA Solar Technology AG 11  Technical Data of the Multicluster Box 6.3 AC input current 3 x 80 A Maximum relative short-circuit current at the feed-in terminal ≤ 25 kA Diameter of stud terminal for connecting N 6 mm Diameter of stud terminal for connecting the grounding conductor 6 mm...
  • Page 40 11  Technical Data of the Multicluster Box 6.3 SMA Solar Technology AG Auxiliary Electric Circuits (Fuses F5, F6, F7) Fuse Maximum allowed fuse rating General Data Number of line conductors Permitted grid configuration TN-S AC voltage range between L1 and N 172.5 V to 250.0 V...
  • Page 41 SMA Solar Technology AG 11  Technical Data of the Multicluster Box 6.3 Rated Voltage / Rated Insulation Voltage Switch cabinet wiring L to N 250 V AC Switch cabinet wiring L1 to L2 433 V AC 230 V auxiliary electric circuits...

  • Page 42: Technical Data Of The Multicluster Box 12.3

    12  Technical Data of the Multicluster Box 12.3 SMA Solar Technology AG 12 Technical Data of the Multicluster Box 12.3 General Data Number of line conductors Three-phase Nominal voltage (range) 230 V / 400 V (172,5 V to 250 V / 300 V to 433 V)
  • Page 43 SMA Solar Technology AG 12  Technical Data of the Multicluster Box 12.3 Maximum torque of stud terminal 10 Nm to 20 Nm Maximum torque of the fuse switch-disconnector 14 Nm Maximum connectable conductor cross-section 120 mm² Maximum fuse link 160 A...

  • 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 require the following information in order to provide you with the necessary assistance: • Type of Multicluster Box •...
  • 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 Κύπρος/...
  • 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-6_12-BE-en-20 Operating Manual...
  • Page 48 SMA Solar Technology www.SMA-Solar.com...

This manual is also suitable for:

Multicluster box 12.3Mc-box-6.3-11Mc-box-12.3

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