Fused Spur
Time Switch
Model: FST24 – 24 Hour Timer
Model: FST77 – 7 Day Timer
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 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 switch and install in accordance
with the current IEE wiring and Building Regulations.
• Check that the total load on the circuit including when this time
switch is fitted does not exceed the rating of the circuit cable,
fuse or circuit breaker.
3. Technical Specifications
• 230V AC 50 Hz
• Fused: Supplied with BS1362 13A Fuse
• Switch Rating: 13A Resistive (3kW)
1 2
750W Incandescent,
Halogen lighting
500W Fluorescent lighting
200W LED lighting
100W Compact Fluorescent lighting
• Contact Type: Normally Open
• Minimum Depth of Wall Box: 25mm
• Boost Times: 1, 2 hours
• Power Status LED Indicator: Red
• Output LED Indicator: Green
• Operating Temperature: 0°C to +40°C
• CE Approved
• Dimensions (H x W x D): 85mm x 85mm x 31mm
Note: Not suitable for use with Discharge Lighting.
Illuminated screen
Sets
programmes
Sets time
and date
Reset button
Power LED
Output LED
Double pole
switch
4. Installation
2
BS 1362 (1"x
1
/4") fuse
• Ensure the mains supply is switched off and the circuit supply
fuses are removed or the circuit breaker turned off.
• Connect the incoming 230V 50Hz supply and outgoing load cables
to the relevant terminals ensuring correct polarity is observed
and that all bare conductors are sleeved (see section 5.
Connection Diagram).
• A front cable exit cut-out is provided with a pre-installed
removable cover.
• If the front exiting cable cut-out is required:
1. Undo the 2 fixing screws and remove the blanking plate
(you can discard the blanking plate at this stage but keep
the 2 fixing screws).
2. Remove the cable grip from the accessory pack.
3. Using the 2 fixing screws previously removed from
the blanking plate, secure the load cable to the unit.
• Finally secure the unit to the back box with the fixing
screws provided, forming the cables during installation
to avoid any entrapment and cable damage.
Override until
next programme
change and
increments
displayed value
during time and
programme
setting
Boosts for 1 or
2 hours and
decrements
displayed value
during time and
programme
setting
5. Connection Diagram
The terminals are marked as follows on the rear of the time switch;
Supply neutral
Supply live
terminal
neutral terminal
Switched live
terminal (load
live connection)
(load neutral
connection)
Loop terminal
terminal
Switched
for earth
continuity
3
Supply
Live (Brown or Red) to L IN
Neutral (Blue or Black) to N IN
Load
Switch Live (Brown or Red) to L OUT
Neutral (Blue or Black) to N OUT
Internal Schematic
Loading...