Idec 3 Position Key Switch - (NC/NO), Illuminated

The YW4K‑33D is a three‑position illuminated key switch head manufactured by Idec. This component offers a combination of one normally‑closed (NC) and one normally‑open (NO) contact arrangement, providing flexible control in switchgear applications. With a built‑in illumination feature and key‑actuated mechanism, it supports secure access control and status indication within industrial panels. Ideal for automation environments, the switch head simplifies operator interface while maintaining reliable mechanical performance under demanding conditions.

Benefits of Using the Idec YW4K‑33D Illuminated Key Switch Head

Implementing the YW4K‑33D key switch head enhances operator safety and control integrity by limiting access to authorised users and providing visual status feedback via the illuminated element. Its three‑position layout enables versatile functional configurations (e.g., OFF‑ON‑LOCK) in compact panel space. For system integrators and OEMs, this switch head offers a reliable interface component that helps minimise misoperation, supports maintenance efficiency, and aligns with professional control‑system design standards.

Standout Features of the YW4K‑33D

• Three‑position key switch (NC/NO) functionality for multi‑state control
• Integrated illumination for clear operator status indication
• Key‑controlled access to enhance system security and lock‑out flexibility
• Compact format suitable for panel‑mounted switch‑heads
• RoHS‑compliant construction (as specified) and backed by Idec manufacturing quality.

For more information please check the datasheets.