4 wire 220 volt hot tub wiring schematic

#4 WIRE 220 VOLT HOT TUB WIRING SCHEMATIC MANUAL#
#4 WIRE 220 VOLT HOT TUB WIRING SCHEMATIC CODE#

This is a safety mechanism designed to automatically shut power off to the hot tub when a fault or leak from one of the supply conductors to the ground is detected. A “GFCI” (Ground Fault Circuit Interrupter) must be used.A shoe box sized metal box, called a disconnect box, must be installed no closer than 5 feet from the hot tub and no further than 15 feet and must be easily accessible to the hot tub users.The recommended wire size is 6 AWG copper although depending on distance and length of run could be larger. The four wires consist of two hots, one ground, and one neutral and must be hard wired to the terminals inside the hot tub control box. The electrical connection to the hot tub must be single phase, 220-240 volt 4 wire.

#4 WIRE 220 VOLT HOT TUB WIRING SCHEMATIC MANUAL#

Hot Tub 220v Electrical Disconnect Boxīelow are a few general requirements and precautions regarding a 220-240V electrical installation, however, it is important to reference your hot tub owner’s manual for specific requirements for your manufacturer and model of hot tub It is also important to make sure you are in compliance with any local and state electrical codes during installation.

#4 WIRE 220 VOLT HOT TUB WIRING SCHEMATIC CODE#

There are several sections of the NEC code that require compliance (ie. It is the obligation of the hot tub owner to make sure that the electrical connections are made by a qualified homeowner or licensed electrician in agreement with the National Electrical Code (NEC). Dual zone swim spas are actually two separate units with separate heaters, equipment, and controls but they are integrated into one contiguous shell for a seamless appearance. Higher amperage circuits may be required if the hot tub or spa has multiple jets pumps or multiple heaters such as the case with dual zone swim/exercise spas which require 100 amps. Although 220V/50AMP circuits are the most common there are some models designed to run on 60-100 AMP circuits. Generally speaking hot tubs are designed to perform optimally and operate most efficiently on a 220V/50AMP hard wired, GFCI protected circuit. That is because all of the equipment can run at the same time (no limitations) and because 220v units feature a larger heater (5.5kw) which can heat the water much faster (than a 110v). They can run on 110V/15AMPs which are referred to as plug and play hot tubs or they run on 220V/50AMPS which are referred to as hard wired hot tubs.

The wire the ground wire comes from the ground bar in the sub panel to the ground bar in the hot tub.Hot tubs run on two types of electrical connections. The four wires coming off the 50 amp breaker are #8 AWG (two line voltage, one neutral, one ground). Three extra feet should be reserved to ensure enough length to reach the motherboard of your new spa. From this subpanel, your electrician will need to run the appropriate length of wire (using rigid conduit, flexible conduit, or SO wire/also referred to as “outdoor wire”) to either the front-center of the spa under the control panel or from the front corner depending on model to the center of the spa. The Sub-panel box, which has a 50 amp 220 voltage GFCI breaker, will be mounted no closer than 5 feet and no longer than 50 feet from the tub.ĥ. Your electrician will use a four-wire electrical service using (two-line voltage, one neutral, one ground) #6 AWG wire with the ground wire being #10 AWG.Ĥ. A licensed electrician will then need to run 240-volt wiring to a 50 amp sub panel that will be mounted on the outside of the home. This panel needs to have a non-GFCI 50 amp breaker.ģ. This is where the power for the spa will be wired from.Ģ. Locate the electrical panel in your home. Here are the specific requirements to hookup a HotSpring HotSpot spa:ġ. These few steps, with the help of a licensed electrician, will ensure you are ready for your hot tub on the day of delivery. Are you getting a new HotSpot Spa? Do you know what you need? In this post, we’ll help you with the electrical requirements of your new hot tub.

4 wire 220 volt hot tub wiring schematic