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		<title>Allen Bradley 1746-IA8 SLC 500 AC Digital Input Module</title>
		<link>https://www.excellentplc.com/allen-bradley-1746-ia8-slc-500-ac-digital-input-module/</link>
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		<dc:creator><![CDATA[admin]]></dc:creator>
		<pubDate>Thu, 16 Apr 2026 09:58:03 +0000</pubDate>
				<category><![CDATA[Allen Bradley]]></category>
		<category><![CDATA[1746-IA8]]></category>
		<category><![CDATA[Allen Bradley 1746-IA8]]></category>
		<category><![CDATA[SLC 500 AC Digital Input Module]]></category>
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					<description><![CDATA[<p>Product Introduction The Allen Bradley 1746-IA8 SLC 500 [&#8230;]</p>
<p><a href="https://www.excellentplc.com/allen-bradley-1746-ia8-slc-500-ac-digital-input-module/">Allen Bradley 1746-IA8 SLC 500 AC Digital Input Module</a>最先出现在<a href="https://www.excellentplc.com">Excellent PLC</a>。</p>
]]></description>
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<html><body><h3 data-section-id="wmrafh" data-start="4" data-end="28"><img fetchpriority="high" decoding="async" class="alignnone size-full wp-image-127390" src="https://www.excellentplc.com/wp-content/uploads/2026/04/1746-IA8-1.jpg" alt="Allen Bradley 1746-IA8 SLC 500 AC Digital Input Module" width="800" height="800"></h3>
<h3 data-section-id="wmrafh" data-start="4" data-end="28">Product Introduction</h3>
<p data-start="29" data-end="374">The Allen Bradley 1746-IA8 SLC 500 AC Digital Input Module is an 8-channel AC input module designed for integration within the SLC 500 automation platform by <span class="hover:entity-accent entity-underline inline cursor-pointer align-baseline"><span class="whitespace-normal">Rockwell Automation</span></span>. It is built to reliably detect and transmit AC input signals from field devices to the controller, ensuring stable monitoring of discrete processes.</p>
<p data-start="376" data-end="697">This module operates with 100/120 VAC input signals, making it suitable for applications where AC-powered devices such as push buttons, limit switches, and relays are commonly used. Its open-style design allows for efficient heat dissipation while maintaining dependable operation in standard industrial control cabinets.</p>
<p data-start="699" data-end="899">With 8 input points grouped for simplified wiring, the 1746-IA8 provides a practical and cost-effective solution for systems that require AC signal acquisition within SLC 500 rack-based architectures.</p>
<hr data-start="901" data-end="904">
<h3 data-section-id="1dqbs77" data-start="905" data-end="931">Product Specifications</h3>
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<th class="" data-start="932" data-end="948" data-col-size="sm"><strong data-start="934" data-end="947">Parameter</strong></th>
<th class="" data-start="948" data-end="957" data-col-size="sm">Value</th>
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<tbody data-start="983" data-end="1686">
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<td data-start="983" data-end="1001" data-col-size="sm"><strong data-start="985" data-end="1000">Module Type</strong></td>
<td data-start="1001" data-end="1036" data-col-size="sm">SLC 500 AC Digital Input Module</td>
</tr>
<tr data-start="1037" data-end="1068">
<td data-start="1037" data-end="1054" data-col-size="sm"><strong data-start="1039" data-end="1053">Input Type</strong></td>
<td data-start="1054" data-end="1068" data-col-size="sm">Digital AC</td>
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<tr data-start="1069" data-end="1104">
<td data-start="1069" data-end="1092" data-col-size="sm"><strong data-start="1071" data-end="1091">Number of Inputs</strong></td>
<td data-start="1092" data-end="1104" data-col-size="sm">8 Points</td>
</tr>
<tr data-start="1105" data-end="1146">
<td data-start="1105" data-end="1131" data-col-size="sm"><strong data-start="1107" data-end="1130">Input Voltage Range</strong></td>
<td data-start="1131" data-end="1146" data-col-size="sm">100/120 VAC</td>
</tr>
<tr data-start="1147" data-end="1181">
<td data-start="1147" data-end="1169" data-col-size="sm"><strong data-start="1149" data-end="1168">Frequency Range</strong></td>
<td data-start="1169" data-end="1181" data-col-size="sm">50/60 Hz</td>
</tr>
<tr data-start="1182" data-end="1220">
<td data-start="1182" data-end="1206" data-col-size="sm"><strong data-start="1184" data-end="1205">Backplane Current</strong></td>
<td data-start="1206" data-end="1220" data-col-size="sm">50 mA @ 5V</td>
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<tr data-start="1221" data-end="1270">
<td data-start="1221" data-end="1247" data-col-size="sm"><strong data-start="1223" data-end="1246">Input Configuration</strong></td>
<td data-start="1247" data-end="1270" data-col-size="sm">8 Points per Module</td>
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<tr data-start="1271" data-end="1310">
<td data-start="1271" data-end="1289" data-col-size="sm"><strong data-start="1273" data-end="1288">Signal Type</strong></td>
<td data-start="1289" data-end="1310" data-col-size="sm">AC Discrete Input</td>
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<tr data-start="1311" data-end="1361">
<td data-start="1311" data-end="1327" data-col-size="sm"><strong data-start="1313" data-end="1326">Isolation</strong></td>
<td data-start="1327" data-end="1361" data-col-size="sm">Electrical Isolation Supported</td>
</tr>
<tr data-start="1362" data-end="1405">
<td data-start="1362" data-end="1386" data-col-size="sm"><strong data-start="1364" data-end="1385">Status Indicators</strong></td>
<td data-start="1386" data-end="1405" data-col-size="sm">LED per Channel</td>
</tr>
<tr data-start="1406" data-end="1438">
<td data-start="1406" data-end="1424" data-col-size="sm"><strong data-start="1408" data-end="1423">Design Type</strong></td>
<td data-start="1424" data-end="1438" data-col-size="sm">Open Style</td>
</tr>
<tr data-start="1439" data-end="1490">
<td data-start="1439" data-end="1454" data-col-size="sm"><strong data-start="1441" data-end="1453">Mounting</strong></td>
<td data-start="1454" data-end="1490" data-col-size="sm">Rack Mountable (SLC 500 Chassis)</td>
</tr>
<tr data-start="1491" data-end="1532">
<td data-start="1491" data-end="1519" data-col-size="sm"><strong data-start="1493" data-end="1518">Operating Temperature</strong></td>
<td data-start="1519" data-end="1532" data-col-size="sm">0 to 60&deg;C</td>
</tr>
<tr data-start="1533" data-end="1574">
<td data-start="1533" data-end="1559" data-col-size="sm"><strong data-start="1535" data-end="1558">Storage Temperature</strong></td>
<td data-start="1559" data-end="1574" data-col-size="sm">-40 to 85&deg;C</td>
</tr>
<tr data-start="1575" data-end="1614">
<td data-start="1575" data-end="1590" data-col-size="sm"><strong data-start="1577" data-end="1589">Humidity</strong></td>
<td data-start="1590" data-end="1614" data-col-size="sm">5&ndash;95% non-condensing</td>
</tr>
<tr data-start="1615" data-end="1660">
<td data-start="1615" data-end="1632" data-col-size="sm"><strong data-start="1617" data-end="1631">Dimensions</strong></td>
<td data-start="1632" data-end="1660" data-col-size="sm">144.5 &times; 34.6 &times; 130.18 mm</td>
</tr>
<tr data-start="1661" data-end="1686">
<td data-start="1661" data-end="1674" data-col-size="sm"><strong data-start="1663" data-end="1673">Weight</strong></td>
<td data-start="1674" data-end="1686" data-col-size="sm">0.204 kg</td>
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<hr data-start="1688" data-end="1691">
<h3 data-section-id="wggvqn" data-start="1692" data-end="1708">Applications</h3>
<p data-start="1710" data-end="1797">&#9679; Used for <strong data-start="1721" data-end="1752">monitoring AC input signals</strong> such as push buttons and selector switches</p>
<p data-start="1799" data-end="1885">&#9679; Suitable for <strong data-start="1814" data-end="1843">industrial control panels</strong> where AC-powered field devices are used</p>
<p data-start="1887" data-end="1972">&#9679; Applied in <strong data-start="1900" data-end="1925">manufacturing systems</strong>, providing reliable discrete input detection</p>
<p data-start="1974" data-end="2067">&#9679; Common in <strong data-start="1986" data-end="2018">process control environments</strong>, where stable AC signal monitoring is required</p>
<p data-start="2069" data-end="2154">&#9679; Ideal for <strong data-start="2081" data-end="2104">equipment retrofits</strong>, maintaining compatibility with SLC 500 systems</p>
<p data-start="2156" data-end="2241">&#9679; Used in <strong data-start="2166" data-end="2195">material handling systems</strong>, detecting operational states and positions</p>
<hr data-start="2243" data-end="2246">
<h3 data-section-id="1l3n95q" data-start="2247" data-end="2261">Advantages</h3>
<p data-start="2263" data-end="2347">&#9679; Supports <strong data-start="2274" data-end="2305">standard 100/120 VAC inputs</strong>, widely used in industrial environments</p>
<p data-start="2349" data-end="2426">&#9679; Provides <strong data-start="2360" data-end="2380">8 input channels</strong>, suitable for compact system configurations</p>
<p data-start="2428" data-end="2496">&#9679; Features <strong data-start="2439" data-end="2460">open-style design</strong> for efficient thermal performance</p>
<p data-start="2498" data-end="2577">&#9679; Includes <strong data-start="2509" data-end="2539">LED indicators per channel</strong>, allowing quick status verification</p>
<p data-start="2579" data-end="2657">&#9679; Ensures <strong data-start="2589" data-end="2616">stable signal detection</strong>, even in electrically noisy conditions</p>
<p data-start="2659" data-end="2734">&#9679; Fully compatible with <strong data-start="2683" data-end="2707">SLC 500 rack systems</strong>, simplifying integration</p>
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<p><a href="https://www.excellentplc.com/allen-bradley-1746-ia8-slc-500-ac-digital-input-module/">Allen Bradley 1746-IA8 SLC 500 AC Digital Input Module</a>最先出现在<a href="https://www.excellentplc.com">Excellent PLC</a>。</p>
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