{"product_id":"qmark-ltr2240-spst-transformer-relay-240-volt","title":"Qmark LTR2240 Spst Transformer Relay 240 Volt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe QMARK LTR2240 is a single-pole single-throw (SPST) transformer relay designed for use in electric heating control circuits. This relay serves as a switching component that allows a low-voltage control signal to operate a higher-voltage load circuit, a common configuration in wall heaters, unit heaters, and baseboard heating systems. Rated for 240-volt applications, it provides reliable switching performance in residential and light commercial heating equipment. Licensed electricians and HVAC technicians are the typical installers for this type of component.\u003c\/p\u003e\u003cp\u003eThis relay is suited for electric heating applications where a transformer-relay combination controls the cycling of a heating element or fan circuit. It is commonly found in forced-air unit heaters and electric wall heaters that require a low-voltage thermostat interface to switch a 240-volt load. The SPST configuration provides a single switching contact path, keeping the control circuit straightforward and easy to service in the field.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSPST contact configuration for single-circuit switching control\u003c\/li\u003e\n\u003cli\u003eRated for 240-volt heating system applications\u003c\/li\u003e\n\u003cli\u003eTransformer-relay design enables low-voltage thermostat compatibility with higher-voltage load circuits\u003c\/li\u003e\n\u003cli\u003eCompact form factor suited for installation within heater enclosures\u003c\/li\u003e\n\u003cli\u003eDesigned as a direct replacement component for electric heating controls\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement relay for QMARK electric heating equipment requiring an SPST transformer relay in 240-volt control circuits.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed electrician or qualified HVAC technician in accordance with the NEC and applicable local codes. Disconnect and lock out all power to the heating unit before removing or installing the relay. Verify that the replacement relay matches the voltage and contact rating of the original component before energizing the circuit. Do not bypass or jumper relay contacts during testing while the unit is energized.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Configuration\u003c\/strong\u003e: SPST\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e: 240 volts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: QMARK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: LTR2240\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"QMARK","offers":[{"title":"Default Title","offer_id":51383301112114,"sku":"LTR2240","price":303.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312675701.jpg?v=1782592689","url":"https:\/\/voomisupply.com\/products\/qmark-ltr2240-spst-transformer-relay-240-volt","provider":"Voomi Supply","version":"1.0","type":"link"}