The 4403 is a 6-position quick-fit terminal strip insulator made of fiberglass NEMA Grade GPO-3, rated for continuous operation at 300°F (155°C), with a length of 3.000 in (76.2 mm) and terminal spacing of 2.625 in (66.7 mm). Terminals are brass, and the insulator includes a backing strip with mounting holes. The insulator width is 0.500 in (12.7 mm).
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The 4403 is a 6-position quick-fit terminal strip insulator made of fiberglass NEMA Grade GPO-3, rated for continuous operation at 300°F (155°C), with a length of 3.000 in (76.2 mm) and terminal spacing of 2.625 in (66.7 mm). Terminals are brass, and the insulator includes a backing strip with mounting holes. The insulator width is 0.500 in (12.7 mm).