<h2>Overview</h2>
<p>The <strong>LS Electric GTK-22</strong> is a thermal overload relay engineered for motor protection in industrial automation and control circuits. With integrated differential current and phase failure protection, the GTK-22 delivers reliable motor safeguarding across multiple current ratings, including the 0.4–0.63A variant. Its compact 44 mm width and dual mounting options (direct contactor mount or DIN rail with optional AZ-22H base) make it ideal for space-constrained control panels.</p>
<h2>Key Features</h2>
<ul>
<li>Differential current and phase failure protection (GTK type)</li>
<li>Trip class 10A for rapid response to overload conditions</li>
<li>Compact bimetallic design, 44 mm width</li>
<li>Direct mount on GM-9, 12, 18, 22A contactors or DIN rail with optional base</li>
<li>Manual and automatic reset selectable</li>
<li>Ambient temperature compensation, –5 to 40°C operating range</li>
<li>Trip-free mechanism ensures reliable mechanical operation</li>
<li>1NO+1NC trip contacts for flexible control logic</li>
</ul>
<h2>Technical Specifications</h2>
<p>The GTK-22 is engineered with proven bimetallic thermal sensing technology. Its small footprint and flexible mounting architecture allow for retrofit installation in existing control systems. The relay’s ambient compensation ensures stable operation across typical industrial temperature ranges, while the trip-free design prevents false trips during manual operation.</p>
<h2>Typical Applications</h2>
<ul>
<li>Three-phase motor protection circuits</li>
<li>Industrial pump and fan control systems</li>
<li>Machine tool and production equipment motor control</li>
<li>HVAC and pneumatic system protection</li>
<li>General-purpose industrial automation starter circuits</li>
</ul>
<h2>Compatibility & Replacements</h2>
<h3>Compatible With</h3>
<ul>
<li>LS Electric GM-9, GM-12, GM-18, GM-22 contactors</li>
<li>LS Electric AZ-22H DIN rail mounting base (optional accessory)</li>
<li>Standard industrial motor control circuits with 3-phase motors</li>
<li>Control systems requiring phase failure detection</li>
</ul>
<h3>Replaces / Drop-In Replacement For</h3>
<p>The GTK-22 series is designed as a direct replacement for earlier thermal overload relay models in the LS Electric (formerly LG) product line. Verify specific compatibility with your existing GM contactor and control circuit before ordering to ensure proper installation.</p>
<h3>Works With</h3>
<ul>
<li>LS Electric motor starters and contactors (GM series)</li>
<li>DIN rail enclosure systems</li>
<li>Three-phase AC motor control circuits</li>
<li>Industrial programmable logic controllers (PLCs) via relay contact outputs</li>
</ul>
