Alencon SPOT: Installation,
Operation, and Maintenance Manual
34 |
P a g e
8.6 Connecting the SPOT to Input Power Source Cables
Any input power source must be able to be manually disconnected from the SPOT at
will. For PV string input, an external disconnect device must be used to connect to
the SPOT (see section 6).
Ensure the input is ‘off’ or disconnects are in OPEN positions, before making connections to the
SPOT input ports. Keep the SPOT isolated from source until commissioning (see section 9.3).
8.6.1 SPOT Wiring Requirements
Fire Hazard:
Wiring should not be undersized. The size of the wires must be
selected based on the maximum short circuit current in the node. Based on the
distributed SPOT topology with isolated PV inputs the wires should meet at least
the rating of the individual string. Ensure wiring is in accordance with the NEC or
applicable code.
8.6.2 Input Wiring
Up to four inputs are connected to a single SPOT via Amphenol H4 connectors as. The inputs
and outputs of the SPOT are polarity sensitive. Keyed Amphenol H4 series solar connectors are
used to ensure the proper polarity of the connection.
Inspect and assure that the plus and minus connected to each SPOT channel
correspond to the same input power source.
Push together the inputs to the correct polarities as shown in the table below, and make sure
they click closed.
8.6.3 SPOT Connector Terminations
SPOT inputs and outputs are terminated with Amphenol H4 connectors. The connections are
made as such:
Polarity
Input Source (PV) SPOT
Negative
Male pin
Female pin
Positive
Female pin
Male pin
Polarity
Output Load (CB)
SPOT
Negative
Male pin
Female pin
Positive
Female pin
Male pin
For more information on Amphenol H4 PV panel connectors, please see:
http://www.amphenol-
industrial.com/h4-pv-connector
Note:
When using SPOT with FEED, different terminating connector options are available, see
FEED manual for more information.
