Simple, Flexible Installation
• Works with both positive and negative grounded PV systems
• Accommodates large and small arrays, providing greater design
flexibility
• Supports both single controller and multiple controller systems
Multiple controllers and GFPDs can be added on an as-needed basis
• Side or below flush mounting with coupling hardware included
• DC Powered via the PV system’s battery
• Includes pre-wired feedback signal harness and fused battery cable
for power
• Simple and Flexible Installation
• Greater Sensitivity
• No Fuses
• Safety Features
Greater Sensitivity
• More precise than fused ground fault protection
• Activates starting at 300mA, compared to at 1A (more typical for
other types)
• Sensing device provides consistent, accurate measurement
Safety Features
• Completely isolates the ground fault from the controller,
battery and loads
• Disconnects both the positive and negative conductors
and completely isolates PV source circuits during a fault
condition, breaking the connection to the array
• Leaves the battery and DC loads grounded under all
conditions, compared to other types which require a warning
label on the battery to note that “dangerous voltages are
present.” All loads will continue to operate safely with the
battery remaining bonded to the ground
• Features audible and visual alarm indicators
• Includes push-button test circuit
Superior fuse-less protection
• Uses high quality breakers instead of fuses, which can be easily
reset after a ground fault event
• Eliminates the problem of fuse replacement at remote sites

More effective bond-to-earth grounding
• Normally grounded components (conductors, controller,
battery and DC loads) will not be left floating
• Avoids problems of other ground fault protection options,
which can allow the battery and load to float to PV array
voltages in relation to ground