Photovoltaic string current monitor CcM-Hall

We are now broadening our range of individual string monitoring devices to achieve the highest possible measurement accuracy, avoid obstructions to the flow of current, simplify the installation and guarantee a better performance of the installation. Thanks to its groundbreaking new connection concept and the innovative measuring and manufacturing technology, this new device reduces both, space and installation costs (CE/UL Certification).


What is the photovoltaic string current monitor CcM-Hall?

CcM-Hall is a measuring device designed to monitor current flowing from the first or second level combiner boxes all the way to the inverter. Its design replaces a multi-phase electric distribution busbar. We recommend that it should be installed during the assembly of the first level combiner box.


Features of current monitor CcM-Hall

On request, it is possible to personalize the configuration of the output busbar. On default, there are 8 inputs and one single busbar output. The new design allows the division of the single PCB busbar to offer different output configurations such as: 8 separate inputs and 2 outputs, each joining 4 inputs; or 4 outputs, each joining 2 input strings; or 8 separate outputs, one for each input, etc..


Extension module CcM-Hall V

Extension module CcM-Hall V has been designed to measure the individual voltage of each box and observe the voltage drop by comparing the voltage of the string box with that of the inverter input. Reading precision error of this device is ±1% (FS) and it is compatible with both poles.


Technical parameters CcM-Hall

• Up to 32 channels per device (1 master +3 slaves)
• Measurement range of +-20Adc per channel
• Non-intrusive current monitoring by Hall system
• Reading precision error ±1 % (FS) (14 bits)
• Compatible with 1000V and 1500V strings
• Up to 60 readings per minute
• 2 closed/open type isolated digital inputs
• 1 input for PT100 sensors
• RS-485 port
- Standard Modbus RTU protocol
- 3kV isolation
- Surge protection
- Transient voltage protected
• Selection of Modbus address by microswitch
• Industrial operating temperature range -40ºC to +80º
• LEDs indicating power supply and data flow
• Power supply of 24 V DC ± 10% with 3kV isolation
- Surge protection
- Transient voltage protected
- Polarity reversal protection
• PCB thickness of 2 mm suited for industrial handling
• Innovative manufacturing technology for high current
• Current busbar of up to 240 A without an additional busbar (copper plate)
• Electroless nickel immersion gold finish for maximum conductivity
• Auto-detection of extension modules
• 2 years warranty
• Epoxi resin overmolding and tropicalized PCB (upon request)
• Extras:
- CcM-Hall V® extension module monitoring voltage of up to 1500 V DC


More information here.