The HW1S-3TF22 is a 22mm IEC-style maintained selector switch operator manufactured by IDEC, designed for use in industrial control and signaling applications. This operator features a knob handle with a standard cam mechanism and is compatible with plastic bezel housings, offering flexible contact configurations including 1NO-1NC, 2NO, and 2NO-2NC contact blocks. The switch incorporates slow-make double-break self-cleaning contacts with finger-safe IP20 protection as standard, and supports both momentary and maintained switching modes. It is engineered for worldwide use with CE, UL, CSA, CCC, and TUV approvals, making it suitable for deployment in diverse industrial environments including control panels, machinery, and automation systems where reliable switching and operator interface are critical.