{"product_id":"1746sc-ini4vi-allen-bradley-4-ch-isolated-analog-inputs-v-c","title":"1746SC-INI4VI | Allen Bradley | 4-Ch Isolated Analog Inputs (V\/C)","description":"\u003ch3\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1746sc-INI4VI\u003c\/strong\u003e is a 4-channel isolated analog input module designed for the SLC 500 platform and manufactured by Spectrum Controls. With support for both voltage and current signals, it offers channel-to-channel isolation for reliable analog signal acquisition in high-noise or mixed-signal industrial environments.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Channels:\u003c\/strong\u003e 4 (individually isolated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Types:\u003c\/strong\u003e Voltage or Current (selectable per channel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Ranges:\u003c\/strong\u003e 0–5 V, 1–5 V, 0–10 V, ±10 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Ranges:\u003c\/strong\u003e 0–20 mA, 4–20 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 16-bit (312.8 µV or nA per count)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eVoltage: ±0.25% of full scale\u003c\/li\u003e\n\u003cli\u003eCurrent: ±0.10% @ 25°C, ±0.25% @ 60°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eVoltage: \u0026gt;220 kΩ\u003c\/li\u003e\n\u003cli\u003eCurrent: \u0026lt;250 Ω\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation:\u003c\/strong\u003e 125 VAC continuous (channel-to-channel and field-to-backplane)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOvervoltage Protection:\u003c\/strong\u003e 50 VDC (voltage inputs)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e 33 mA continuous, 70 mA transient\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePerformance\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpdate Time (4 channels):\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eCurrent: 14 ms (500 Hz filter)\u003c\/li\u003e\n\u003cli\u003eVoltage: 18 ms (500 Hz filter)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep Response:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e8 ms (500 Hz filter)\u003c\/li\u003e\n\u003cli\u003e67 ms (60 Hz filter)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon Mode Rejection:\u003c\/strong\u003e 99 dB @ 1 kHz, 150 dB @ 60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNormal Mode Rejection:\u003c\/strong\u003e 98 dB @ 50\/60 Hz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eElectrical \u0026amp; Environmental\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Current Draw:\u003c\/strong\u003e 550 mA @ 5 V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Dissipation:\u003c\/strong\u003e 3.25 W max\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0–60 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e –40 to +85 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity:\u003c\/strong\u003e 5–95% non-condensing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e UL\/cUL, CE, UKCA, FCC, Class I Div 2 (Groups A–D)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":42384271441987,"sku":"1746SC-INI4VI","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/5810\/3107\/files\/1746SC-INI4VI_3.png?v=1750832048","url":"https:\/\/www.plcdcspro.com\/products\/1746sc-ini4vi-allen-bradley-4-ch-isolated-analog-inputs-v-c","provider":"PLC DCS Pro Ltd.","version":"1.0","type":"link"}