Timeguard DS41A Pneumatic Time Delay Switch

The Deta Timeguard DS41A Pneumatic Time Delay Switch is a simple and effective solution for controlling lighting in staircases, corridors, hallways and other shared or high-traffic areas. Designed to replace an existing single gang wall switch, it allows lights to remain on for a set period before switching off automatically, helping to reduce unnecessary energy use.

This pneumatic timer switch provides adjustable light-on times from approximately 10 seconds to 10 minutes, making it suitable for a wide range of everyday lighting applications. Users simply press the switch to turn the lights on, and the built-in pneumatic timing mechanism switches them off after the selected delay period.

The DS41A is designed for straightforward installation, using a 2-wire single pole connection with no neutral required. It is compatible with 20mm back boxes and can be flush mounted on a 1 gang mounting box, making it a practical retrofit option for replacing standard wall switches.

Suitable for 6A incandescent and resistive loads and 3A inductive loads, the Timeguard DS41A is a reliable choice for electricians, contractors, landlords and facilities managers looking for a cost-effective time delay lighting control. Finished in white and backed by a 3-year manufacturer guarantee, it is a dependable timer switch for domestic, commercial and communal lighting applications.

Key Features

• Pneumatic time delay switch
• Replaces an existing single gang wall switch
• Ideal for staircases, corridors, hallways and communal areas
• Adjustable light-on time from approximately 10 seconds to 10 minutes
• Suitable for 6A incandescent and resistive loads
• Suitable for 3A inductive loads
• Single pole switching
• 2-wire connection with no neutral required
• Compatible with 20mm back boxes
• Flush mounting on a 1 gang mounting box
• IP20 rated
• White finish
• 3-year manufacturer guarantee

Customer Benefits

• Helps reduce wasted energy by switching lights off automatically
• Simple push-button operation for everyday users
• Ideal for communal lighting control in shared areas
• No neutral required, making retrofit installation easier
• Adjustable delay time suits different room and corridor layouts
• Suitable replacement for a standard single gang wall switch
• Practical choice for landlords, electricians and maintenance teams
• Clean white finish suits most interior switch plates and wall areas

Product Specification

• Brand: Deta / Timeguard
• Product Code: DS41A
• Product Type: Pneumatic time delay switch
• Switching Type: Single pole
• Connection Type: 2-wire, no neutral required
• Time Delay Range: Approx. 10 seconds to 10 minutes
• Load Rating: 6A incandescent and resistive loads
• Inductive Load Rating: 3A
• Frequency: 50Hz
• Installation: Flush mounting on 1 gang mounting box
• Back Box Compatibility: 20mm back boxes
• IP Rating: IP20
• Colour: White
• Height: 82mm
• Depth: 40mm
• Guarantee: 3 years
• Application: Staircases, corridors, hallways and communal lighting areas

What is the Deta Timeguard DS41A used for?

The DS41A is used to automatically switch lights off after a selected time delay. It is ideal for staircases, corridors, hallways and communal areas.

How long can the DS41A keep lights on for?

The light-on time is adjustable from approximately 10 seconds to 10 minutes.

Does the DS41A need a neutral wire?

No. The DS41A uses a 2-wire single pole connection and does not require a neutral wire.

Can it replace a normal wall switch?

Yes. It is designed to replace an existing single gang wall switch.

Is the DS41A suitable for staircases and corridors?

Yes. Deta lists the DS41A as ideal for staircases and corridors.

What load rating does this timer switch support?

It is suitable for 6A incandescent and resistive loads and 3A inductive loads.

Is this a digital timer switch?

No. The DS41A is a pneumatic time delay switch, meaning it uses a mechanical timing action rather than a digital programmer.

Can the delay time be adjusted?

Yes. The delay time can be adjusted from approximately 10 seconds to 10 minutes.

What back box depth is required?

The DS41A is compatible with 20mm back boxes.

Is this switch suitable for outdoor use?

No. The DS41A is IP20 rated and is intended for indoor use only.

What colour is the DS41A?

The switch is supplied in a white finish.

Who should install this time delay switch?

The DS41A should be installed by a qualified electrician or competent electrical professional in accordance with current wiring regulations.