{"product_id":"siemens-5sy4305-7-supplementary-protector-3p-0-5a-480v","title":"Siemens 5SY4305-7 Supplementary Protector 3P 0.5A 480V","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SIEMENS 5SY4305-7 is a 3-pole supplementary protector rated for 480 VAC service at 0.5 amps with a Curve C trip characteristic. Supplementary protectors are used for overcurrent and short-circuit protection of individual loads and branch circuits in industrial control panels and equipment — they are not intended as branch-circuit protective devices under NEC Article 240. This unit is UL1077 rated and also meets IEC mini circuit breaker standards, making it suitable for both domestic and internationally specified panel builds. It measures 54mm in width and 70mm in depth and is listed under UL File E116386.\u003c\/p\u003e\u003cp\u003eTypical applications include motor control centers, machine tool panels, HVAC equipment control enclosures, and industrial distribution panels where supplementary overcurrent protection of internal components is required. The Curve C trip characteristic handles moderate inrush loads and is appropriate for resistive and light inductive circuits. Electricians and panel builders working on UL508A-listed industrial control panels routinely specify this type of device for component-level protection.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3-pole configuration provides simultaneous overcurrent protection across all three phases\u003c\/li\u003e\n\u003cli\u003e0.5A continuous current rating suits low-load control circuits and instrumentation feeds\u003c\/li\u003e\n\u003cli\u003eCurve C trip characteristic handles moderate inrush without nuisance tripping\u003c\/li\u003e\n\u003cli\u003eUL1077 listed and IEC mini circuit breaker rated for broad specification compliance\u003c\/li\u003e\n\u003cli\u003eCompact 54mm width fits standard DIN rail panel layouts with minimal space impact\u003c\/li\u003e\n\u003cli\u003eUL File E116386 listing supports UL508A panel documentation requirements\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style supplementary protector for 3-pole 480 VAC industrial control panel applications requiring UL1077-rated overcurrent protection at 0.5 amps with a Curve C trip curve.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed electrician familiar with NEC requirements for supplementary protectors and industrial control panel wiring. De-energize and lock out the panel before installing or replacing this device. This protector is intended for supplementary protection of loads within equipment and must be used downstream of a branch-circuit protective device — it does not serve as a branch-circuit breaker. Verify DIN rail mounting clearances and that the panel enclosure rating matches the application environment before commissioning.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating\u003c\/strong\u003e: 0.5 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e: 480 VAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Characteristic\u003c\/strong\u003e: Curve C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupt Rating\u003c\/strong\u003e: 5 kA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 54mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth\u003c\/strong\u003e: 70mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: UL1077, IEC Mini Circuit Breaker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL File\u003c\/strong\u003e: E116386, Volume 1, Section 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 754554876320\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SIEMENS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5SY4305-7\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SIEMENS","offers":[{"title":"Default Title","offer_id":51383948476722,"sku":"5SY4305-7","price":160.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312672955.png?v=1782612818","url":"https:\/\/voomisupply.com\/products\/siemens-5sy4305-7-supplementary-protector-3p-0-5a-480v","provider":"Voomi Supply","version":"1.0","type":"link"}