NL2870C3A is a panel mounting indicator light from Bulgin's range of LED indicators. Based on the part number structure, it appears to be a variant of the (C) 2870.00 series indicator with specific illumination, color, and voltage options. The indicator supports multiple terminal types including wire leads (L), K 2.8, H 4.8, and C 6.3 connections. It features a 12.7mm panel hole size with panel thickness compatibility of 0.75-2.0mm. These indicators are commonly used in control panels and equipment where visual status indication is required.