{"product_id":"supco-td73-time-delay-on-break-timer-19-250v-1a","title":"Supco td73 Time Delay on Break Timer 19-250V 1A","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SUPCO td73 is a time delay on break (DOB) timer designed for HVAC control circuits that require a timed delay after power is removed from the load circuit. The td73 operates across a wide input voltage range of 19 to 250 volts AC or DC, making it suitable for both low-voltage and line-voltage control applications. It supports a maximum continuous load of 1 amp with an inrush tolerance of 10 amps, and requires a minimum load current of 40 milliamps at 24 VAC. Licensed HVAC technicians and controls specialists typically install this timer as part of equipment sequencing or compressor protection logic.\u003c\/p\u003e\u003cp\u003eThe td73 fits residential and light commercial HVAC applications where a controlled off-delay is needed to protect compressors, motors, or other equipment from rapid restart cycles. Its wide voltage compatibility makes it useful across a range of system configurations, including those operating at standard 24-volt control voltage as well as higher-voltage circuits. It is well suited for integration into control panels, air handlers, and packaged HVAC units requiring DOB timing sequences.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWide input voltage range: 19 to 250 volts AC or DC\u003c\/li\u003e\n\u003cli\u003eMaximum load current: 1 amp continuous with 10-amp inrush tolerance\u003c\/li\u003e\n\u003cli\u003eMinimum load current: 40 milliamps at 24 VAC\u003c\/li\u003e\n\u003cli\u003eOperating temperature range: 0 to 160 degrees F (-18 to 71 degrees C)\u003c\/li\u003e\n\u003cli\u003eNon-positional, single-hole mounting for flexible panel installation\u003c\/li\u003e\n\u003cli\u003e1\/4-inch quick connect terminals for fast field wiring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or upgrade timer for residential and light commercial HVAC control circuits requiring time delay on break functionality across 19 to 250 volt AC\/DC systems.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified HVAC technician or licensed controls technician. Disconnect and lock out all power to the control circuit before removing the existing timer or making any wiring connections. The single-hole non-positional mounting design allows the unit to be secured in any orientation, providing flexibility in panel layout. Verify that load current meets the 40-milliamp minimum requirement at 24 VAC before commissioning.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage\u003c\/strong\u003e: 19-250 VAC\/VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Load Current\u003c\/strong\u003e: 1 amp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Inrush Current\u003c\/strong\u003e: 10 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Load Current\u003c\/strong\u003e: 40 milliamps at 24 VAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: 0 to 160 degrees F (-18 to 71 degrees C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type\u003c\/strong\u003e: Non-positional, single hole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection\u003c\/strong\u003e: 1\/4-inch quick connect terminals\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SUPCO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: td73\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SUPCO","offers":[{"title":"Default Title","offer_id":51161577423154,"sku":"TD73","price":19.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/306254422.png?v=1778876750","url":"https:\/\/voomisupply.com\/products\/supco-td73-time-delay-on-break-timer-19-250v-1a","provider":"Voomi Supply","version":"1.0","type":"link"}