{"product_id":"rcd-hh12zb200-auto-limit-switch-160-200f","title":"Rcd hh12zb200 Auto Limit Switch 160-200F","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe RCD hh12zb200 is an automatic reset high-limit switch rated for a 160 to 200 degrees F operating range. Limit switches in this class monitor supply-air or heat-exchanger temperatures and open the control circuit when a set threshold is exceeded, protecting the heat exchanger and burner assembly from thermal damage. When temperatures return to a safe level, this switch resets automatically without requiring manual intervention. It is sized for residential and light-commercial forced-air furnace applications and is typically installed by licensed HVAC technicians during routine service or component replacement.\u003c\/p\u003e\n\u003cp\u003eThis limit switch is suited for forced-air gas furnace systems where over-temperature protection is required in the supply-air plenum or on the heat exchanger. The auto-reset function makes it appropriate for installations where nuisance manual resets would interrupt normal system cycling. It is commonly found in upflow, downflow, and horizontal furnace configurations where operating temperatures fall within the 160 to 200 degrees F range.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAuto-reset design returns the switch to closed position once temperatures drop to a safe level\u003c\/li\u003e\n  \u003cli\u003eOperating range of 160 to 200 degrees F covers common plenum and heat-exchanger limit applications\u003c\/li\u003e\n  \u003cli\u003eHigh-limit function opens the control circuit on over-temperature, protecting the heat exchanger from damage\u003c\/li\u003e\n  \u003cli\u003eDirect OEM-style replacement format for straightforward field swap-out\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement high-limit switch for residential and light-commercial forced-air gas furnace systems requiring a 160 to 200 degrees F auto-reset limit control.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC technician. Shut off all power to the furnace at the disconnect and set the thermostat to the off position before removing the existing switch. Verify the replacement limit switch mounting style and spade terminal orientation match the original before energizing the system. Always confirm the furnace cycles normally through a full heating sequence after installation to validate proper limit operation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Range\u003c\/strong\u003e: 160 to 200 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReset Type\u003c\/strong\u003e: Automatic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwitch Function\u003c\/strong\u003e: High-limit, normally closed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: RCD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: hh12zb200\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RCD","offers":[{"title":"Default Title","offer_id":51233871659314,"sku":"HH12ZB200","price":37.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307626148.jpg?v=1780110847","url":"https:\/\/voomisupply.com\/products\/rcd-hh12zb200-auto-limit-switch-160-200f","provider":"Voomi Supply","version":"1.0","type":"link"}