The L21MA03 is a three-position selector switch with handle designed for industrial control and signaling applications. It features stay-put positions at 45° intervals, providing stable operation in positions 1, 0, and 2, with electrical contacts configured as 13-14 and 23-24 for flexible circuit integration. The switch is housed in a 29.9 mm diameter body with a 23 mm handle length and 43 mm overall depth, incorporating a black plastic chrome bezel and locking ring for secure mounting. Certified to IEC 60947-5-1 and rated IP 66/IP 69K, the L21MA03 delivers robust protection against water spray, dust, and harsh environmental conditions including snow and outdoor exposure. This selector switch is ideal for industrial vehicles, outdoor machinery, mining operations, and marine environments where reliable, weather-resistant control is essential.