Sun Pumps MTR BLM-SB-073S-60 - Manual (Page 9)

3.5 Wiring
Prior to connecting any wires to the controller be sure you have a system wiring diagram to
use as a reference. Generic system wiring diagrams are included in this manual for your
convenience. (See Figures 2 and 3) Guessing at polarity and connection points is not worth
the risk of potential product damage and/or personal injury.
Ensure the wire sizes are of adequate diameter (gauge) to minimize voltage drop. Please
refer to a DC voltage loss table or call your SunPumps dealer for assistance.
All other system equipment should be installed before proceeding with wiring the controller.
Double check polarity and wire termination tightness before powering up the system.
CAUTION : Photovoltaic panels produce DC electricity when exposed to sunlight.
Cover the panels with a blanket or with an opaque material before wiring. Install a
disconnect switch between the solar modules and the controller.