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UL AND IEC INSTALLATION GUIDE

p.

 8 of 14

Installation Instructions UL-1703 and IEC

  / Rev. 05-2018 V.5

RECOM © Copyright 2018

www.recom-solar.com

4. ELECTRICAL INSTALLATION

Planning and Design

All modules are manufactured with a sealed junction box, pre-attached cables and locking connectors. These 
components should not be modified or tampered with in any way.

•  Ensure connectors are clean and dry before establishing connection.
•  Ensure that all wire, fusing and disconnects are appropriately sized for the system design according to 

national, regional, and local codes.

•  Electrical characteristics are within plus or minus 5% of rated values for Isc, Voc, Impp and Vmp. Pmax 

ranges between 0% to +3% of rated Pmax at standard test conditions (STC). However, modules will operate 
under conditions that may be significantly different than STC. RECOM suggests multiplying specified rat-
ings by a minimum of 1.25 or more when designing the system and balance of system components. Refer 
to local codes before planning and designing the system.

•  Determine the maximum number of modules that may be connected in series using the following formula

Ns =maxs/Vocm

Where:

Ns

 equals the maximum modules in series.

Vmaxs

 equals the maximum system voltage.

Please refer to module data sheet for actual Vmax rating, as some models are rated for 1000 V UL 
and 1000 V IEC.

Vocm

 equals the module open circuit voltage at coldest conditions for the site (refer to local codes).

Module Wiring

•  The module includes wires and polarized locking connectors from the junction box on the back of the 

module. Field replacement of connectors or cables must be avoided and will void the product warranty. Po-
larized locking connectors of the same type, make and manufacturer are required for all series string wiring. 
The maximum operating temperature of the wires and connectors should not exceed 85 

0

C.

•  When installing modules in landscape orientation, use the 1.3 meter lead lengths to ensure enough cable 

length to make adjacent module-to-module string connections (assumes a maximum spacing of 50 mm 
between adjacent modules).

•  Always wire modules so that proper polarity is maintained. Avoid placing excessive tension on the cables.
•  There is no limit to the maximum number of series strings that can be combined in parallel. However, each 

string must include overcurrent protection with a maximum rating of 15 A. RECOM recommends the use of 

Summary of Contents for RCM 6MA Series

Page 1: ...LLOWING RECOM PHOTOVOLTAIC MODULES 60 Cell Monocrystalline Silicon Modules RCM xxx 6MB xxx 250 310 60 Cell Polycrystalline Silicon Modules RCM xxx 6PB xxx 240 280 72 Cell Monocrystalline Silicon Modules RCM xxx 6MA xxx 290 360 72 Cell Polycrystalline Silicon Modules RCM xxx 6PA xxx 290 340 Installation and Safety Instructions for United States and Canada and IEC version ...

Page 2: ...2 STORAGE UNPACKING AND HANDLING 4 Safety 5 Maintenance 5 3 MECHANICAL INSTALLATION 6 Planning and Design 6 General Installation Guidelines 7 Module Installation options Mechanical Installation Warnings 4 ELECTRICAL INSTALLATION 8 Planning and Design 8 Modules Wiring 5 MOUNTING CONFIGURATIONS 10 6 GROUNDING ELECTRICAL WARNINGS 12 7 DISCLAIMER OF LIABILITY 13 8 DECOMMISSIONING AND RECYCLING 13 9 PR...

Page 3: ...installing a module Before installing a solar photovoltaic system installers should familiarize themselves with its mechanical and electrical requirements Keep this guide in a safe place for future reference operation and mainte nance and in case of sale or disposal of the modules General Guidelines Installing solar photovoltaic systems requires specialized skills and knowledge Installation should...

Page 4: ...odulesstored theymustremainpackagedontheprovidedpallets andmustnotbestacked more than two pallets high Modules should never be stored in a wet or outdoor environment Upon unpacking only carry a module by its frame with two or more people Do not carry a module by the wires or junction box Keep all electrical components clean and dry All modules are manufactured with a sealed junction box pre attach...

Page 5: ...udingthejunctionboxorsub com ponents Do not artificially concentrate sunlight on a module Do not install or handle broken modules If a module is broken or the back sheet is torn contact with the surface or frame can cause an electrical shock Do not wear rings jewelry watches or other metallic items while working with photovoltaic modules Maintenance Check the modules for any damages to the glass s...

Page 6: ... rating of this module is valid only when mounted in the manner specified in the mechanical mounting instructions The system fire rating is determined by the module rack and roofing materials RECOM recommends not mixing module fire performance type within a system Mechanical structures should not contact the module back sheet any racking or the microinverter under any expected load conditions Cons...

Page 7: ...h rear side of the module must comply with the dimensions specified in the installation manual All other structural dimensions such as clamp and rail thickness should be sized appropriately for the intended site load Mechanical Installation Warnings Installation and maintenance should be performed by qualified personnel only Use only insulated tools during installation troubleshooting and maintena...

Page 8: ...s using the following formula Ns maxs Vocm Where Ns equals the maximum modules in series Vmaxs equals the maximum system voltage Please refer to module data sheet for actual Vmax rating as some models are rated for 1000 V UL and 1000 V IEC Vocm equals the module open circuit voltage at coldest conditions for the site refer to local codes Module Wiring The module includes wires and polarized lockin...

Page 9: ... overall system design and should include the maximum short circuit current of the system maximum operating tempera tures and cable run lengths For field connections use at a minimum 12 AWG 4 mm2 wires insulated for a minimum of 850 C Use copper wire only WARNING Installers shall adhere to all applicable local regional and national codes and regulations when designing and constructing the photovol...

Page 10: ...odule should be fixed via bolts at the mounting holes on each long side frame or Clamps can be mounted anywhere within the Clamp Mount Range as shown in the color code key A BACK VIEW FRONT VIEW FRONT VIEW C BACK VIEW Bolt Mount Locations Fixed bolt location for 5400 Pa front load Bolt Mount Locations Clamp Mount Locations Fixed clamp location for 2400 Pa front load Clamp Mount Locations Clamp mou...

Page 11: ...th rails is authorized for use with PV modules Special mount ing holes have been provided on the long rail of the module frame Use of these mounting holes for anything other than NexTracker is prohibited BACK VIEW BACK VIEW AP90 V1 5 ATI TRACKER MOUNTING Mounting Color Code Mounting Hole Location Module Rail Fixed Clamp Mount Clamp Mount Range Fixed Clamp Mount location A 394 mm D 400 mm F 200 mm ...

Page 12: ...oad Consult applicable codes to ensure the appropriate conductor diameter is used for the system The grounding method must not allow direct contact of dissimilar metals with the frame of the module as this would result in galvanic corrosion UL 1703 recommends metal combinations not to exceed a voltage potential of 0 5 The frame has predrilled holes marked with a grounding sign as illustrated in th...

Page 13: ...ising out of or in any way connected with such installation operation use or maintenance No responsibility is assumed by RECOM for any infringement of patents or other rights of third parties which may result from the use of the PV product No license is granted by implication or otherwise under any patent or patent rights The information in this manual is based on RECOM s best knowledge and experi...

Page 14: ...ngs to the following listed RECOM Module Series RCM 330 335 340 345 350 355 6MA Dimension mm inch MODULE DIMENSIONS A 990 39 0 B 1 976 77 8 C 35 1 38 D 35 1 38 E 35 1 38 PHYSICAL PARAMETERS Dimension mm inch MOUNTING HOLE SPACING F 950 37 4 G 1 188 46 8 P 400 15 7 CABLE LENGTH H 1 300 51 2 Module Weight 21 2 Kg Frame Material Anodized aluminum Aloy Tempered ARC Glass Thickness 3 2 mm Connector typ...

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