
IP65 Time Delay Switch
Model: DS3HDN
Installation & Operating Instructions

1. General Information
These instructions should be read carefully
and retained for further reference and maintenance.
2. Safety
• Before installation or maintenance, ensure the
mains supply to the time delay switch is switched
off and the circuit supply fuses are removed
or the circuit breaker turned off.
• It is recommended that a qualified electrician
is consulted or used for the installation of this
time delay switch and install in accordance with
1
the current IEE wiring and Building Regulations.
• Check that the total load on the circuit including
when this time delay switch is fitted does not exceed
the rating of the circuit cable, fuse or circuit breaker.

3. Technical Specifications
• 230V AC 50 Hz
• This time switch is of class I construction
and must be earthed
• Switch Rating: 16A Resistive (4kW)
The LED switching capabilities of this
product can be increased up to 200W
by the addition of the Timeguard
2
ZV900 Automatic switch load controller –
Sold separately.
• Boost Timing Range: 2, 5, 10, 30, 60, 90,
120, 180 minutes
• Illuminated Push Button: Blue LED
• Operating Temperature: -10°C to +40°C
• IP Rating: IP65
• CE Compliant
• Dimensions (H x W x D): 94 x 94 x 57mm
Note: Not suitable for use with
Discharge Lighting
Filament Lamps 4kW
Fluorescent 4kW
Low Voltage 20-200W
LED Lighting 150W

Figure 1 – front panel of DS3HDN
3 4
Four fixing
holes
Mains
supply input
and output
connector
Four fixing
holes
Figure 2 – internal of DS3HDN
Four PCB mounting screws
Push button
switch
connector
Time delay
selector