<h2>Overview</h2>
<p>The <strong>Potter & Brumfield KHAU-17D11-24</strong> is a KHA-series general-purpose electromechanical relay designed for multi-contact AC/DC switching applications. This 24VDC-coil relay provides 4 form-C (4PDT) contacts rated for industrial and commercial control circuits, with proven reliability in decades of field deployment.</p>
<h2>Key Features</h2>
<ul>
<li>4 form-C (4PDT) contacts with silver (Ag) alloy contact material</li>
<li>24VDC coil with 0.038A nominal coil current and 850mW coil dissipation</li>
<li>Contact ratings: 3A @ 120VAC, 2.5A @ 28VDC</li>
<li>Socket plug-in mount with solder terminals</li>
<li>Class B coil insulation for extended temperature operation</li>
<li>Clear polycarbonate dust cover included</li>
<li>UL and CSA certified; contacts rated same polarity</li>
</ul>
<h2>Technical Specifications</h2>
<ul>
<li><strong>Series:</strong> KHA General Purpose Relay</li>
<li><strong>Coil Voltage (Nominal):</strong> 24VDC</li>
<li><strong>Coil Current:</strong> 0.038A</li>
<li><strong>Coil Power Dissipation:</strong> 850mW</li>
<li><strong>Contact Configuration:</strong> 4PDT (Form C)</li>
<li><strong>Contact Material:</strong> Silver (Ag)</li>
<li><strong>Contact Rating (AC):</strong> 3A @ 120VAC</li>
<li><strong>Contact Rating (DC):</strong> 2.5A @ 28VDC</li>
<li><strong>Mounting:</strong> Socket Plug-In (Solder Terminals)</li>
<li><strong>Coil Insulation Class:</strong> B</li>
<li><strong>Approvals:</strong> UL, CSA</li>
<li><strong>Package:</strong> Clear polycarbonate dust cover</li>
<li><strong>Weight:</strong> 0.07 lbs</li>
</ul>
<h2>Typical Applications</h2>
<p>The KHAU-17D11-24 is suitable for a wide range of general-purpose switching and control applications, including:</p>
<ul>
<li>Industrial machine control and automation panels</li>
<li>HVAC and process control systems</li>
<li>Lighting and power distribution circuits</li>
<li>Test and measurement instrumentation</li>
<li>Telephone switching and telecommunications equipment</li>
<li>Panel wiring and retrofit upgrades (drop-in replacement for KHA series)</li>
</ul>
<h2>Compatibility & Replacements</h2>
<h3>Compatible With</h3>
<ul>
<li>Standard relay sockets for KHAU solder-terminal relays (TE/Potter & Brumfield compatibility)</li>
<li>DC control circuits rated 24VDC</li>
<li>AC/DC output applications up to 3A @ 120VAC and 2.5A @ 28VDC</li>
<li>Panel and cabinet control systems</li>
</ul>
<h3>Replaces / Drop-In Replacement For</h3>
<ul>
<li>Other KHAU-17D11-24 units in panel retrofit or preventive maintenance</li>
<li>Verify compatibility with your OEM or system integrator before replacement</li>
</ul>
<h3>Works With</h3>
<ul>
<li>Standalone electromechanical control circuits (no PLC or software integration required)</li>
<li>Manual and automatic control relays and timers</li>
<li>AC and DC relay circuits with appropriate load compatibility</li>
</ul>
