{"product_id":"siemens-as-i-interface-power-supply-unit-230-500vac-8a","title":"Siemens AS-i Interface power supply unit, 230 - 500VAC, 8A","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Siemens 3RX9503-0BA00 is an AS-Interface power supply unit designed to supply 30 V DC to AS-Interface networks and connected field devices. It converts AC mains input to a controlled DC output suitable for AS-Interface bus systems. With integrated fault detection and overload protection, it ensures safe and reliable powering of AS-Interface circuits in industrial automation environments.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAS-Interface power supply unit — for AS-i bus systems\u003c\/li\u003e\n\u003cli\u003eDC output: 30 V DC (nominal), suitable for AS-Interface standard voltage\u003c\/li\u003e\n\u003cli\u003eRated output current: 8 A — provides sufficient current for multiple AS-i devices\u003c\/li\u003e\n\u003cli\u003eWide input voltage range: accepts AC mains from ~85–132 V or 176–550 V AC (depending on supply range\/region) — flexible global installation\u003c\/li\u003e\n\u003cli\u003eIntegrated ground-fault detection and output overload\/short-circuit protection — improves network safety and reliability\u003c\/li\u003e\n\u003cli\u003eMains buffering time on supply failure: ≥ 20 ms at rated load — ensures stable supply during short disturbances\u003c\/li\u003e\n\u003cli\u003eSpring-loaded terminals for input, output and diagnostic connections — simplifies wiring and maintenance\u003c\/li\u003e\n\u003cli\u003eDIN-rail mounting (standard rail) — compact and easy cabinet installation\u003c\/li\u003e\n\u003cli\u003eProtection class: IP20 — suitable for enclosed industrial cabinet use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticle Number:\u003c\/strong\u003e 3RX9503-0BA00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e AS-Interface power supply unit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Voltage (DC):\u003c\/strong\u003e 30 V DC (rated) — typical output tolerance DC 29.5 … 31.6 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Current (max):\u003c\/strong\u003e 8 A (DC) for AS-Interface bus and devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage (AC):\u003c\/strong\u003e 85‒132 V AC or 176–550 V AC (range depending on model\/region) 50\/60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMains Frequency Range:\u003c\/strong\u003e 47–63 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMains Buffering Time (at rated current):\u003c\/strong\u003e ≥ 20 ms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Ripple (0–10 kHz):\u003c\/strong\u003e ≤ 300 mV peak-to-peak (AS-i+\/AS-i– lines) \u003cbr\u003e\u003cstrong\u003eSpikes (10–500 kHz):\u003c\/strong\u003e ≤ 50 mV peak-to-peak (per AS-i standard)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Functions:\u003c\/strong\u003e Short-circuit protection, overload protection, ground-fault detection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Types:\u003c\/strong\u003e Spring-loaded terminals — for input, AS-i output, and diagnostics (diagnostic output 0.14–1.5 mm²; main terminals 0.2 – 2.5 mm²)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e DIN-rail (standard 35 mm) — rail mountable unit for control cabinets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Rating (Housing):\u003c\/strong\u003e IP20 (requires enclosure for safe installation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficiency (at rated output):\u003c\/strong\u003e ~87 % — efficient power conversion and minimal waste heat\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCompliance \u0026amp; Standards\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for AS-Interface (AS-i) network power supply according to AS-i specifications\u003c\/li\u003e\n\u003cli\u003ePrimary\/secondary isolation compliant with SELV requirements — safe galvanic separation of mains and AS-i circuits\u003c\/li\u003e\n\u003cli\u003eMeets relevant EMC and safety standards for industrial power-supply units under SINAMICS \/ Siemens automation environment\u003c\/li\u003e\n\u003cli\u003eSuitable for global use thanks to wide input-voltage range and frequency compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe 3RX9503-0BA00 is used to supply power to AS-Interface networks and connected sensors, actuators or field modules in automation systems, industrial plants, conveyor controls, machine installations or safety logic setups. It is ideal wherever a dedicated, controlled 30 V DC supply is required for AS-i bus wiring, especially in cabinets, control panels or distributed I\/O installations — with built-in safety and fault-detection functions to protect connected devices and ensure system reliability.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":40775037190208,"sku":"3RX9503-0BA00","price":17666.67,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/3662\/3424\/files\/3RX9503-0BA00.jpg?v=1764919530","url":"https:\/\/industrial.rubicon.tech\/products\/siemens-as-i-interface-power-supply-unit-230-500vac-8a","provider":"Rubicon Group Industrial Technology Shop","version":"1.0","type":"link"}