{"product_id":"icm-controls-sentry-3n1-surge-disconnect-line-voltage-monitor-copy","title":"ICM Controls SENTRY-SF-30A Sentry SmartFuse Single-Phase Line Voltage Monitor and Surge Protection","description":"\u003ch1\u003eICM Controls SENTRY-SF-30A Sentry SmartFuse Single-Phase Line Voltage Monitor and Surge Protection\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Sentry SmartFuse integrates three critical layers of protection in one prewired, easy to install solution for residential and commercial single phase 208\/240 VAC HVAC\/R equipment. The Sentry SmartFuse combines the ICM517A-LITE single phase surge protector, ICM492D single phase voltage monitor, and overcurrent protection with the use of field selectable fuses for equipment following NEC Code 440.22(A). For added convenience and safety, the Sentry SmartFuse includes an onboard disconnect breaker, giving both technicians and homeowners a fast, simple, and reliable way to cut power during installation or maintenance. Engineered with a modular layout, the Sentry SmartFuse allows HVAC Technicians a way to streamline installation, replace essential components and adjust fuse rating 5-30A all within the same enclosure. Contractors can adjust the fuse size to match the equipment nameplate to meet NEC Code 440.22(A), all without accessing the unit's control panel. This integrated approach means HVAC Technician can fully service most units, reducing the need for an electrical license or additional service call.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e*Individual ICM Controls components are replaceable\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e**Fuses shown in image are not included. For demonstration purposes only.\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor most HVAC installations, the installer does not need an electrical license to install the Sentry SmartFuse\u003c\/li\u003e\n\u003cli\u003ePre-wired for 240 VAC\u003c\/li\u003e\n\u003cli\u003eModular design with field-replaceable parts\u003c\/li\u003e\n\u003cli\u003eProgrammable voltage monitor with backlit display + 50-fault memory\u003c\/li\u003e\n\u003cli\u003eProtects from over\/under voltage and rapid short cycling\u003c\/li\u003e\n\u003cli\u003e40A contactor fully disconnects service\u003c\/li\u003e\n\u003cli\u003e30A internal breaker for easy power on\/off\u003c\/li\u003e\n\u003cli\u003eSuperior TMOV surge protection for reliable safety\u003c\/li\u003e\n\u003cli\u003eBuilt to handle major surge impacts\u003c\/li\u003e\n\u003cli\u003eProudly innovated and designed in the USA\u003c\/li\u003e\n\u003cli\u003eNEMA 4X outdoor rated (≈ IP66), UL94-5VA flame rating, UV rated\u003c\/li\u003e\n\u003cli\u003eUL listed (ICM517A-LITE E347279, ICM492D E53944), UL 508A; meets NEC 440.22(A) 2026\u003c\/li\u003e\n\u003cli\u003eLimited lifetime product warranty up to a 3-year $25,000 connected equipment warranty\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eSPECIFICATIONS:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInputs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLine Voltage: 240VAC\u003c\/li\u003e\n\u003cli\u003eFrequency: 50\/60 Hz\u003c\/li\u003e\n\u003cli\u003eBreaker: 30A at 240VAC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOutputs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eContactor: 40A FLA, 208\/240VAC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSurge Protection:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum Surge Current: 60,000 amps\u003c\/li\u003e\n\u003cli\u003eGreen LED Light: Protected when lit\u003c\/li\u003e\n\u003cli\u003eProtection Modes: L-L, L-G\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eVoltage Monitor (Default Settings):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVoltage set point: 240VAC\u003c\/li\u003e\n\u003cli\u003eDelay on Break (ASC): 15 seconds\u003c\/li\u003e\n\u003cli\u003eOver\/under voltage setting: 5%\u003c\/li\u003e\n\u003cli\u003eDelay on Fault: 2 seconds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWeight\/Dimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLength: 14”\u003c\/li\u003e\n\u003cli\u003eWidth: 9.75”\u003c\/li\u003e\n\u003cli\u003eHeight: 6”\u003c\/li\u003e\n\u003cli\u003eWeight: 6.9lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.icmcontrols.com\/wp-content\/uploads\/2026\/06\/LIS533_Sentry-SF-30A.pdf\"\u003e\u003cstrong\u003eSell Sheet \u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.icmcontrols.com\/wp-content\/uploads\/2026\/06\/LIAF358_Sentry-SmartFuse_30A.pdf\"\u003e\u003cstrong\u003eInstallation Guide\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Edmondson Supply","offers":[{"title":"Default Title","offer_id":52545412890840,"sku":"Sentry-SF-30A","price":495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0011\/6709\/7956\/files\/SentrySmartFuse5-30-1024x759.png?v=1790288103","url":"https:\/\/edmondsonsupply.com\/products\/icm-controls-sentry-3n1-surge-disconnect-line-voltage-monitor-copy","provider":"Edmondson Supply","version":"1.0","type":"link"}