{"product_id":"time-switch-plastic-enclosure-heat-protect","title":"Intermatic 24-Hour 120V Mechanical Time Switch, SPST, Pool Heater Protection, Type 3R Plastic Enclosure","description":"\u003cp\u003eThe Intermatic T101P201 is a 24 hour mechanical time switch in a Type 3R plastic enclosure, wired for pool heater protection. The clock runs on 120 volts at 60 Hz and the switch is SPST.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat heater protection means\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA gas fired heater keeps heat in the exchanger after the burner stops. If the filter pump shuts down at the same moment, that heat has nowhere to go. The result is the pounding and knocking owners hear at the pad, plus accelerated scale and lime deposits inside the heater. This time switch is built to turn the heater off approximately 20 minutes ahead of the pump, so the pump goes on moving water and carries the residual heat away. It is a small piece of sequencing that adds years to a heater.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDuty and ratings\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese are heavy duty mechanical time switches with high motor load ratings, used on commercial, industrial and residential jobs. The dial supports up to 12 ON and OFF operations a day with a minimum of one hour between them. Beyond swimming pool and spa filter pumps with gas fired heaters, Intermatic lists the family for booster pumps, lighting, hydro chlorinators, fans, air conditioning, heat pumps and music and signal systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Type 3R plastic enclosure is rated for outdoor use, so it can go on the equipment pad. Plastic also avoids the corrosion that eats metal enclosures near salt systems and chemical storage.\u003c\/p\u003e","brand":"Intermatic","offers":[{"title":"Default Title","offer_id":48633439518932,"sku":"INT-30-712","price":181.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_20503699-14f0-48f1-bf7d-f8105ab7933b.jpg?v=1788801780","url":"https:\/\/www.activepoolsupply.com\/products\/time-switch-plastic-enclosure-heat-protect","provider":"Active Pool Supply","version":"1.0","type":"link"}