Rauschert Ceramic infra-red plaque 26490-2A01-101

This ceramic infra-red plaque measures 45 mm by 64.5 mm by 12.5 mm and is made of technical ceramics. It is intended for use in gas burners that radiate heat in the infrared spectrum. The plaque is mounted in the burner head, where the gas-air mixture burns across its surface, heating the ceramic to incandescence. Its material offers high resistance to high temperatures, aggressive environments, and mechanical stress, along with excellent electrical insulation and dimensional stability.

Parts of this type are chosen primarily by their outer dimensions and thickness, as the plaque must fit the burner frame and gas flow path. Before ordering, compare the exact measurements of the existing plaque with the replacement, and check that the material and surface structure are compatible with the expected emissivity and operating temperature. During installation, examine the plaque for cracks, warping, or contamination that would reduce radiation efficiency. Ensure that the gasket or seal between the plaque and the burner body is sound, because a leak can allow unburned gas to escape or disrupt the flame pattern.

When ceramic infra-red plaques fail, they often develop cracks, warping, or surface contamination that cause reduced radiation efficiency and uneven heating across the face. The burner may produce a patchy or dim glow instead of a uniform red incandescence. Gas leakage around a degraded gasket can alter the flame pattern or allow unburned gas to escape. Inspect the plaque for visible damage and check that the seal is intact; a correctly fitted plaque should glow evenly over its entire surface.