6
Fig. 3-3: Securing the module with clamps
1. Place the module on the mounting rail.
2. Clamp the module in place with the module clamp (1) (recommended tightening torque: 8 Nm or 70 Inch Pounds).
3.3 Electrical installation
3.3.1 Electrical values
All relevant electrical values are specified on the label on the back side of the module. Please find an overview of the
technical data in section 7 of this manual.
| Under normal conditions, a photovoltaic module is likely to experience conditions that produce more current and/or
voltage than reported at standard test conditions. Therefore the values of Isc and Voc should be adjusted based on
conditions of use when determining component voltage ratings, conductor ampacities, fuse sizes and ratings of
components connected to the module output.
| Refer to Section 690-7 and 680-8 of the National Electric Code (NEC) for voltage and/or current adjustment factors
which may apply.
3.3.2 General safety instructions
| Carry out the cabling in accordance with applicable Regulations, codes and standards.
| Make sure that the cables and connections are not damaged. Protect the cables from damage.
Risk of electric shock. Risk of fire and injury from electric arc.
| Do not disconnect connections under load.
| Make sure there is adequate protection against contact with live conductors.
| Use only insulated tools.
3.3.3 Parallel and series connection
Modules of the same type can be connected in parallel or in series. Modules or series strings of modules connected in
parallel may require overcurrent protection in each series string. The maximum series fuse ratings for Conergy PH
modules are as follows:
| PH 175-200M: 10A
| PH 230-260M BL: 15A
| PH 220-255P: 15A
Material damage due to connection errors.
| Use only modules of the same type and output for series connection.
| Make sure that the number of modules and their connections correspond with the electrical values specified by the
devices connected to the photovoltaic system.
| Use only 90ºC wet-rated, sunlight resistant, stranded or solid conductor cables for all module and interconnect wiring
that may be exposed to weather.
| Make sure that the polarity is correct.
3.3.4 Connecting the photovoltaic module
On the rear of the photovoltaic module, there is a connection box with connection cables, plugs and sockets.
1. Connect the plug of one module with the socket on the next module.
2. Connect the plug and socket of the first and last modules within a module series string to the conductor cables
leading to the inverter. An adapter kit for solar cables with a 4 mm
2
cross section is available as an option.
An optional locking clip is available to prevent disconnection of the plug and socket connection by unqualified persons.