Spa Thermowells, Sensors, Fuses and Timers
- Spa Thermowells : A spa thermowell houses the temperature sensor and provides a conduit for the sensor to be mounted into the spa shell. Thermowell elbows also available.
- Spa Temperature Sensors or Thermistors: A hot tub temperature sensor assembly contains an electrical resistor whose resistance changes with temperature. Also referred to as a thermistor, these sensors come in various lengths with either a 3/8" or 1/4" sensor bulb.
On the latest electronic spa control systems, the sensors regulate the spa water temperature as well as high-limit and low-limit to protect the spa from overheating or freezing. In addition to temperature regulation and high/low limit protection, on some electronic systems the sensors also replace the role of the pressure switch.
- Spa Fuses : from 0.3 Amp glass fuses to 30 Amp time-delay fuses, we stock a wide variety of hot tub fuses. Contact ELM to find the correct fuses, fuse holders and mini breakers.
- Spa Timers : Mechanical timers allow for manual adjustment of filter cycles. Spa Timers regulate and limit the total number of hours the pump will run during a 24 hour cycle. ELM carries both 24 hour 120V and 7 Day mechanical timers.
Spa transformers convert the operating voltage of either 120V or 240V to a low voltage supply, typically 12V or less to power PC boards, topside control panels and lights. A range of hot tub transformers is available with single or multiple outputs.
Each transformer must be carefully matched to the application to ensure compatibility, as there is a variety of connector styles and amperage ratings.
Spa Contactors and Relays
The most common 30 Amp relays in spas come in either SPST (single pole single throw) or DPST (double pole single throw) configurations. ELM offers spa contactors to the trade in either 120V 40/50Amp Double Pole or 240V 40/50 Amp Double Pole versions.
ELM carries air switches, rocker switches and pressure switches.
Spa air switches are electrical pneumatic switches connected to the button by tubing. Pushing the button creates a small burst of air necessary for the air switch to function, which in turn activates a pump, light, blower or other spa component.
Spa Cables and Cords
We carry various types of cables and cords, including J&J mini plugs and receptacles for the different spa pack connector types which include pump connections, circ pump connection, blower connections, ozone connector, light connector or other types of spa pack connections. ELM ships control cables, light cord and other AWG wire.