Electrical Requirements - Master Spas GS Owner's Manual & Limited Warranty

ELECTRICAL REQUIREMENTS

CONFIGURATION 2 - 240V, 50A GFCI
NOTE: Electrical requirements by model is shown in Model Specifications. Only electrical
configurations pertaining to the models referenced in this manual are shown.
HAVE YOUR ELECTRICIAN READ THE FOLLOWING INFORMATION
Electrical connections made improperly, or the use of wire gauge sizes for incurring power
which are too small, may continually blow fuses in the electrical equipment box, may
damage the internal electrical controls and components, may be unsafe and in any case will
void your warranty.
It is the responsibility of the spa owner to ensure that electrical connections are made by a
qualified electrician in accordance with the National Electrical Code and any local and state
electrical codes in force at the time of installation.
These connections must be made in accordance with the wiring diagrams found inside the
control box. This equipment has been designed to operate on 60Hz. alternating current only,
240 volts are required. Make sure that power is not applied while performing any electrical
installation. A copper bonding lug has been provided on the electrical equipment pack to
allow connection to local ground points. The ground wire must be at least 8 AWG copper
wire and must be connected securely to a grounded metal structure such as a metallic cold
water pipe. Be sure to have a licensed electrician examine and ensure proper grounding is
provided. All Master Spas equipment packs are wired for 240 VAC only. The electrical service
for your spa must include a 50 AMP switch or circuit breaker to open all non-grounded
supply conductors to comply with section 422-20 of the National Electrical Code. The
disconnect must be readily accessible to the spa occupants, but installed at least five feet
from the spa. A Ground-Fault Circuit Interrupter (GFCI) must be used to comply with section
680-42 of the National Electrical Code. A ground fault is a current leak from any one of the
supply conductors to ground. A GFCI is designed to automatically shut off power to a piece
of equipment when a ground fault is detected.
Service to the spa must be dedicated 240V, 50A 3 wire plus ground (#6 AWG copper with
minimum #8 AWG copper ground).
Route service into the equipment area for final hook-up to terminals inside the spa control
system. The spa must be hooked up to a "dedicated" 240 volt, 50 amp breaker and GFCI.
The term "dedicated" means the electrical circuit for the spa is not being used for any other
electrical items (patio lights, appliances, garage circuits, etc.). If the spa is connected to a
non-dedicated circuit, overloading will result in "nuisance tripping" which requires resetting
of the breaker switch at the house electrical panel.
DO NOT DIVE.
DO NOT DIVE.
ELECTRICAL REQUIREMENTS
BEFORE INSTALLATION BEGINS
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202012