Pneumatic Time Delay Switch

The Timeguard DS41A is a reliable pneumatic time delay switch designed for controlling loads such as extractor fans where a run‑on delay is required after switching off. Ideal for bathrooms, toilets and utility areas, it operates mechanically without the need for a neutral connection, making it perfect for retrofit installations. Simply push the button and turn the lights ON from 10 seconds to 10 minutes.

Key Features

• Pneumatic time delay switch with adjustable run‑on period
• No neutral required – ideal for retrofit installations
• Suitable for controlling extractor fans and similar loads
• Simple rotary adjustment for delay time setting
• Reliable mechanical operation (no electronics)
• Ideal for bathrooms, WCs and utility rooms