HESI Igniter

The High Energy Spark Igniter (HESI) is a Class 3 Igniter used for direct spark ignition of oil or gas igniters or small burners. Forney’s HESI provides a highly reliable source of ignition for a wide range of industry igniters utilizing a 12 joule source of energy delivered to the spark tip (3 sparks per second) which easily ignites the fuel.

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The High Energy Spark Igniter consists of three major components: a power unit, spark rod assembly and cable assembly.

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The power unit is packaged in a NEMA-4 or 4X enclosure suitable for wall mounting at the burner front as a standard.Additional enclosures are available to meet specifi c application demands. Th e power unit develops 12 joules of energy delivered to the spark tip through the use of heavy duty electrical components. It has a 50% duty cycle at temperatures up to 135°F ambient.

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The spark rod is available in the standard rigid design or in a flexible configuration for use in a tilting tangential burner application. The spark rod features a self-cleaning surface-gap spark tip that is easily replaceable via a threaded connection. Both rigid and flexible spark rods can be provided with an optional retraction assembly to allow the spark tip to be inserted and retracted from the firing position.

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Th e cable assembly consists of heavy duty 12-gauge, 3,000-volt wire sheathed in a ½ inch flexible conduit terminated with quick release, militarygrade connectors.

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Standard designs are available for both Class I Div 2 and Class I Div 1 area applications. The ATEX HESI is ATEX Exd IIC T6 approved.