<h2>Overview</h2>
<p>The <strong>Webster B90H 4WA10</strong> is an insulated secondary ignition transformer engineered for industrial control and ignition system applications. This unit delivers reliable voltage transformation for burner ignition circuits, combustion controls, and related safety systems in commercial and industrial HVAC, boiler, and process heating equipment. The transformer is designed to withstand the demands of continuous-duty industrial environments.</p>
<h2>Key Features</h2>
<ul>
<li>Insulated secondary winding for enhanced safety and isolation</li>
<li>60 Hz rated operation for North American utility frequency</li>
<li>Black industrial enclosure with robust construction</li>
<li>United States manufacture</li>
<li>Compatible with standard ignition control circuits</li>
</ul>
<h2>Technical Specifications</h2>
<p>Refer to the specifications table below for nominal ratings and operating parameters:</p>
<h2>Typical Applications</h2>
<ul>
<li>Oil and gas burner ignition systems</li>
<li>Industrial boiler and furnace control circuits</li>
<li>Commercial HVAC heating equipment</li>
<li>Combustion control safety circuits</li>
<li>Process heating and high-temperature applications</li>
</ul>
<h2>Compatibility & Replacements</h2>
<h3>Compatible With</h3>
<ul>
<li>Industrial ignition control modules and sequencers</li>
<li>Oil and gas burner flame detection circuits</li>
<li>Combustion control systems</li>
<li>Standard 120V primary ignition control circuits</li>
</ul>
<h3>Replaces / Drop-In Replacement For</h3>
<p>Verify compatibility with your system integrator or equipment manufacturer before ordering. The Webster B90H 4WA10 is a direct replacement for legacy Webster ignition transformers in equivalent applications. Consult your original equipment manual for compatible part numbers.</p>
<h3>Works With</h3>
<ul>
<li>Flame relay circuits and safety switches</li>
<li>Ignition spark plug electrode assemblies</li>
<li>Burner management systems</li>
<li>Industrial control transformers and distribution panels</li>
</ul>
