OutBack Power Ground Fault Detector Interrupter

IMPORTANT SAFETY INSTRUCTIONS

KEEP THESE INSTRUCTIONS

This product is intended to be installed as part of a permanently

grounded electrical system as shown in the wiring diagrams. The

following important restrictions apply unless superseded by local or

national codes:

• Groundequipmentismarkedwiththissymbol:

• The GFDI is designed for indoor installation or installation inside a

weatherproof enclosure. It must not be exposed to rain.

• Must use a UL approved crimp lug on the cable attached to the

breaker stud.

NOTE: Outback supplies a #2 AWG ring terminal with the GFDI and

recommends a #2 AWG cable when the GFDI is connected to an 80 amp

breaker. (#3 AWG is the minimum allowable in this application.

See Standards and Requirements, page 3.)

Introduction

The OutBack Power Systems’ Ground Fault Detector Interrupter (GFDI) is

a safety device for a photovoltaic (PV) array. In the event that the array

becomes shorted to ground, it disconnects the PV system from the

batteries.

• The GFDI meets mandatory UL 1741 low-level ground-fault protection

requirementsforroof-mountedphotovoltaicenergysystemsto

prevent res.

• TheGFDImeetstherequirementsofthe2008NECsection

690.5 (A)

through (C) to reduce re hazards when wired

according to the wiring

diagram contained in these instructions.

OutBack GFDI Products

• OBB-GFDI-80-150VDC-PNL (one 0.5 amp breaker ganged with one

80 amp breaker with common trip)

• OBB-GFDI-80D-150VDC-PNL (one 0.5 amp breaker ganged with two

80 amp breakers with common trip)

• OBB-GFDI-80Q-150VDC-PNL (one 0.5 amp breaker ganged with four

80 amp breakers with common trip)