Use and Care Guide

6. GFCI Wiring Diagram
This diagram shows a “Three Wire Plus Ground” installation. It
has a load Neutral connection, commonly required for spa’s
containing both 120 and 240 volt equipment. They need the
load neutral connection to produce the 120 volt.
Siemens GFCI Breaker Box
16
Note This - The white Neutral
wire from the back of the
GFCI MUST be connected to
an incoming Line Neutral.
The internal mechanism of
the GFCI requires this neutral
connection. The GFCI will not
work without it.
IMPORTANT NOTE: Installation of this GFCI-
Circuit Breaker, including ampere sizing and
selection of conductor size and type, must be
accomplished by a qualified electrician in
accordance with the National Electrical Code,
or the Canadian Electrical Code, and all feder-
al, state and local codes and regulations i
effect at the time of installation.
LOAD 2 - OUTPUT
LOAD NEUTRAL - OUTPUT
LOAD 1 - OUTPUT
LINE NEUTRAL - INPUT
LINE 2 - INPUT
LINE 1 - INPUT
GROUND
120 volts
120 volts
240 volts
From
Electric
Service
Panel or
Other
Source
To Spa or
Pool
Equipment
TEST
White Wire
Line Neutral
LOAD
POWER
LOAD
NEUTRAL
LOAD
POWER