{"product_id":"1791-32b0-allen-bradley-1791-series-24v-dc-input-block","title":"1791-32B0 | Allen-Bradley 1791 Series | 24V DC Input Block","description":"\u003ch2\u003e\u003cstrong\u003e1791-32B0 Allen-Bradley 24V DC 32-Point Input Block Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInput Configuration: The module features \u003cspan style=\"color: #0000ff;\"\u003e\u003cstrong\u003ethirty-two (32) 24V DC input channels\u003c\/strong\u003e\u003c\/span\u003e, logically arranged in four isolated groups of eight inputs each.\u003c\/li\u003e\n\u003cli\u003eDC Electrical Ratings: It operates with an on-state voltage range of \u003cspan style=\"color: #0000ff;\"\u003e\u003cstrong\u003e10-30 Volts DC\u003c\/strong\u003e\u003c\/span\u003e. The nominal input on-state current is 11 mA at 30V DC maximum.\u003c\/li\u003e\n\u003cli\u003ePrecise Switching Specifications: The off-state voltage measures 5V DC maximum, with a minimum off-state current of 1.5 mA. This ensures clear signal differentiation.\u003c\/li\u003e\n\u003cli\u003ePerformance Characteristics: The module presents a maximum input impedance of 3.4KΩ. Its design ensures compatibility with various 1771 output modules and relay types.\u003c\/li\u003e\n\u003cli\u003eIsolation \u0026amp; Protection: It provides robust isolation of \u003cstrong\u003e500 Volts AC\u003c\/strong\u003e for power supply to RIO, I\/O group-to-group, and I\/O group-to-logic interfaces.\u003c\/li\u003e\n\u003cli\u003ePower Requirements: The \u003cstrong\u003e1791-32B0\u003c\/strong\u003e requires an external power supply of 19.2-30 Volts DC, drawing a current of 300 mA.\u003c\/li\u003e\n\u003cli\u003eThermal Management: It dissipates a maximum of \u003cstrong\u003e16.3 Watts (55.6 BTU\/hr)\u003c\/strong\u003e. Proper ventilation in the control cabinet ensures optimal thermal performance.\u003c\/li\u003e\n\u003cli\u003eEnvironmental Tolerance: The module operates reliably within an ambient temperature range of 0 to 60 degrees Celsius.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eQ: What controllers are compatible with the \u003cstrong\u003e1791-32B0\u003c\/strong\u003e? \u003cbr\u003eA: This module connects seamlessly with PLC-2, PLC-3, PLC-5 family, PLC-5\/250, and SLC 5\/02 modular controllers via RIO.\u003c\/li\u003e\n\u003cli\u003eQ: How do I ensure compatibility with a 1771 series output module? \u003cbr\u003eA: Verify that the output module's off-state leakage current is less than the \u003cstrong\u003e1791-32B0\u003c\/strong\u003e's minimum off-state current (1.5 mA).\u003c\/li\u003e\n\u003cli\u003eQ: What are the on-state and off-state voltage requirements? \u003cbr\u003eA: The on-state voltage range is 10-30V DC. The module detects an off-state condition when the voltage falls to 5V DC maximum.\u003c\/li\u003e\n\u003cli\u003eQ: Can this module drive loads like contactors directly? \u003cbr\u003eA: No, it is an input module only. It senses device states. It is compatible with pure coil 100-A45 contactors and Type F, P, and PH relays for sensing.\u003c\/li\u003e\n\u003cli\u003eQ: What wire gauge should I use for the DC inputs? \u003cbr\u003eA: Use 14 AWG stranded wire with a maximum insulation thickness of 3\/64 inches for reliable input and power connections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eContact Information\u003c\/strong\u003e\u003cbr\u003eInquiries: \u003ca href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e\u003cbr\u003eWhatsApp: \u003ca rel=\"noopener\" href=\"https:\/\/wa.me\/8615392429628\" target=\"_blank\"\u003e+86 153 9242 9628\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePartner\u003c\/strong\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/www.nex-auto.com\/\" target=\"_blank\"\u003eNexAuto Technology Limited\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45836504334497,"sku":"1791-32B0","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/5390\/3265\/files\/1791-32B0.jpg?v=1780645546","url":"https:\/\/www.autonexcontrol.com\/products\/1791-32b0-allen-bradley-1791-series-24v-dc-input-block","provider":"AutoNex Controls Limited ","version":"1.0","type":"link"}