<h2>Overview</h2>
<p>The <strong>LS Electric GTK-22 thermal overload relay 4-6A</strong> is a Class 10A protection device engineered for industrial motor control and automation systems. With an adjustable trip range from 4A to 6A, this bimetallic-style relay safeguards motors and connected equipment from sustained overload conditions by automatically interrupting the control circuit before thermal damage occurs.</p>
<h2>Key Features</h2>
<ul>
<li>Adjustable current setting range: 4A–6A</li>
<li>Class 10A trip rating for reliable overload detection</li>
<li>Bimetallic thermal sensing element with differential current/phase failure protection</li>
<li>1NO + 1NC auxiliary trip contacts for flexible control logic</li>
<li>Manual and automatic reset modes</li>
<li>Trip-free design prevents manual override of protective function</li>
<li>Ambient temperature compensation (–5°C to +40°C operating range)</li>
<li>Compact form factor: 44 mm width for space-constrained panels</li>
</ul>
<h2>Technical Specifications</h2>
<ul>
<li><strong>Current Range:</strong> 4–6A adjustable</li>
<li><strong>Trip Class:</strong> Class 10A</li>
<li><strong>Auxiliary Contacts:</strong> 1NO + 1NC</li>
<li><strong>Protection Type:</strong> Differential + phase failure (GTK series)</li>
<li><strong>Sensing Technology:</strong> Bimetallic thermal</li>
<li><strong>Reset Options:</strong> Manual/Automatic</li>
<li><strong>Operating Temperature:</strong> –5°C to +40°C ambient compensated</li>
<li><strong>Physical Width:</strong> 44 mm</li>
<li><strong>Mounting:</strong> Direct contactor mount or DIN rail/screw with optional base</li>
</ul>
<h2>Typical Applications</h2>
<ul>
<li>Three-phase motor protection in industrial machinery</li>
<li>HVAC compressor and pump motor control</li>
<li>Production line automation and material handling systems</li>
<li>Integrated starter assemblies (contactors + overload relays)</li>
<li>Light commercial and heavy industrial control panels</li>
</ul>
<h2>Compatibility & Replacements</h2>
<h3>Compatible With</h3>
<ul>
<li>LS Electric GM-9, GM-12, GM-18, GM-22 contactors (9A, 12A, 18A, 22A frames)</li>
<li>DIN rail mounting systems (with optional AZ-22H base)</li>
<li>Panel-mounted screw terminals</li>
<li>LS Metasol contactor families</li>
</ul>
<h3>Replaces / Drop-In Replacement For</h3>
<ul>
<li>Verify compatibility with your specific GM contactor frame size (9, 12, 18, or 22A) before ordering, as this unit is designed for direct mounting to corresponding contactor sizes.</li>
</ul>
<h3>Works With</h3>
<ul>
<li>Motor control circuits up to Class 10A protection rating</li>
<li>Three-phase AC power systems</li>
<li>IEC 60947-4 compliant motor starter designs</li>
<li>Auxiliary contact blocks and timer units (sold separately)</li>
</ul>
