Installation/Operating Instructions for
Time Delay Switch
Part No: TLSN
Thank you for purchasing a quality time delay switch from GreenBrook. Please read these
instructions fully prior to initial use.
Every effort has been made to ensure that the guidance information on this sheet will
enable the installation of the switch to be carried out safely and correctly.
THIS PRODUCT SHOULD BE INSTALLED BY A
COMPETENT PERSON AND IN ACCORDANCE
WITH THE CURRENT IET WIRING REGULATIONS,
AND BUILDING REGULATIONS.
The TLSN is suitable for controlling incandescent (GLS), fluorescent and compact fluorescent
lighting. The timer can be used on its own, or with other units in a 2-wire (no neutral) lighting
circuit, and can therefore be installed on new installations or replace existing single
gang switches.
IMPORTANT
All metal boxes must be earthed.
Please ensure that the top and bottom lugs are removed, if fitted, from metal wall boxes
before fitting as there is a danger of the common terminal (marked com) fouling a
mounting lug and causing an earth fault if boxes having four lugs are used.
INSTALLATION
The TLSN has been designed for mounting on a 20mm or 25mm deep standard BS single
gang accessory box. However, it is recommended that deeper boxes are used where extra
space is required for additional cables, for example when looping in. Please ensure that
there is adequate space for wiring.
It is recommended that if using moulded backing boxes, please ensure that the back box
only has two mounting lugs as certain manufacturers do not allow adequate clearance for
the Time Delay Switch terminal connections. Some moulded boxes also have two
locating pips on the mounting face which can obstruct the Time Delay Switch and
prevent it from fitting flush. These will need to be ground off.
If mounting on surfaces such as unplastered brickwork or the mounting box is completely
true to the wall surface, please avoid over tightening the mounting screws, as this may
cause the switch faceplate to distort and in turn lock the plunger in the “ON”position.
OPERATION
The switch is operated by pressing the plunger button. This will “make”. The plunger will
gradually return to its original position during the time delay sequence, eventually returning
the contacts to their original position. The face-plate is moulded in a semi-translucent
material and therefore it is normal to occasionally see a flash when the contacts “make” or
“break”.
WIRING
The live feed should be connected to COM (common). Contacts are connected when
the plunger button is pressed, and will stay connected for the period of the time delay.
As these units are designed for lighting circuits, a neutral feed is not required at the switch
position.
To use the Time Delay Switch as a normal light switch type operation, connect the “Live
Feed” Wire into the COM Terminal, and the “Switched Live” wire into the NO terminal.
Additional switches can be wired in parallel to control the same load (please see diagram
below).
WIRING DIAGRAM
Live Feed
O
N
Switched LiveSwitched Live
Switched Live
CO
M
NO
Live
Feed
Neutral
M
O
C
Timing Screw
O
N
Live Feed
O
C
Lights
M
TIMER ADJUSTMENT
The timing can be adjusted between 10 seconds and 10 minutes (approx) by turning the
brass timing screw in the centre of the plate on the back of the unit. Turning the timing
screw clockwise will increase the time delay.
TECHNICAL DATA
Switch Current Rating: 240V, AC～50Hz
Incandescent (GLS) Load: 6A
Fluorescent Load: 3A
Compact Fluorescent Load: 6 Fittings max. (3A Peak)
Adjustable Time Delay: 10 Seconds to 10 Minutes (Approx)
PLEASE KEEP THESE INSTRUCTIONS
SAFE FOR FUTURE REFERENCE
Your GreenBrook Time Delay Switch
GUARANTEE
is guaranteed for 1 year from
the date of purchase.
This is in addition to your statutory rights.
WEST ROAD . HARLOW
ESSEX . CM20 2BG . UK
info@greenbrook.co.uk
www.greenbrook.co.uk
Issue no: 705339
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