<h2>Overview</h2>
<p>The <strong>Joslyn Clark T13U031</strong> is a NEMA Size 1 magnetic starter designed for industrial motor control applications. This Bulletin 6013 Type TM unit delivers 27-ampere continuous duty rating at 600VAC maximum, making it suitable for controlling three-phase motors up to 10 HP at 575V. The starter includes an interchangeable thermal overload relay and one normally-open auxiliary contact for circuit integration and pilot control.</p>
<h2>Key Features</h2>
<ul>
<li>27-amp continuous duty rating at 600VAC maximum operating voltage</li>
<li>Three-phase motor control with electromagnetic contactor design</li>
<li>Interchangeable thermal overload protection heater element</li>
<li>One normally-open auxiliary contact for logic and pilot circuits</li>
<li>Coil voltage: 110–120V 60Hz / 90–110V 50Hz (TB159-1 standard)</li>
<li>NEMA Size 1 open frame construction for panel mounting</li>
</ul>
<h2>Technical Specifications</h2>
<ul>
<li><strong>Part Number:</strong> T13U031 (also listed as T13U031-76)</li>
<li><strong>Manufacturer:</strong> Joslyn Clark Controls</li>
<li><strong>NEMA Size:</strong> 1</li>
<li><strong>Ampere Rating:</strong> 27A continuous</li>
<li><strong>Maximum Voltage:</strong> 600VAC</li>
<li><strong>Phase:</strong> Three-phase</li>
<li><strong>Motor HP Ratings:</strong> 7 HP @ 200V; 7 HP @ 230V; 10 HP @ 575V</li>
<li><strong>Coil Voltage:</strong> 110–120V 60Hz / 90–110V 50Hz</li>
<li><strong>Coil Part:</strong> TB159-1</li>
<li><strong>Auxiliary Contacts:</strong> 1 NO (normally-open)</li>
<li><strong>Overload Protection:</strong> Interchangeable thermal overload relay heater</li>
<li><strong>Bulletin Number:</strong> 6013</li>
<li><strong>Type:</strong> TM</li>
<li><strong>Enclosure:</strong> Open frame</li>
</ul>
<h2>Typical Applications</h2>
<p>The T13U031 is widely used in industrial automation for:</p>
<ul>
<li>Three-phase induction motor starting and stopping</li>
<li>Pump and fan control systems</li>
<li>Machine tool motor control</li>
<li>Textile and manufacturing equipment</li>
<li>HVAC system motor starters</li>
<li>Conveyor and material handling systems</li>
</ul>
<h2>Compatibility & Replacements</h2>
<h3>Compatible With</h3>
<ul>
<li>Standard 600VAC industrial control circuits</li>
<li>Three-phase 200V, 230V, and 575V motor systems</li>
<li>NEMA-rated control enclosures and panels</li>
<li>Industrial pushbutton stations and pilot devices</li>
<li>Thermal overload relay heaters (interchangeable style)</li>
</ul>
<h3>Replaces / Drop-In Replacement For</h3>
<ul>
<li>T13U031-76 (equivalent designator)</li>
<li>Verify compatibility with your system integrator before ordering for exact replacements for other brands or models.</li>
</ul>
<h3>Works With</h3>
<ul>
<li>Joslyn Clark Type TM control component ecosystem</li>
<li>Standard industrial pilot lights, pushbuttons, and selector switches</li>
<li>Interchangeable thermal overload heater elements</li>
<li>NEMA-compliant auxiliary contact circuits for logic and monitoring</li>
</ul>
