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mkelectric.co.uk
CIRCUIT PROTECTION
602
Standards and approvals
EN 60730-1, EN 60730-2-7
FEATURES
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Ideal for independent programmable control
of lighting, heating and other functions
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Can be mounted in Sentry Consumer Units
and appropriate Sentry enclosures, or surface
mounted
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Integral resistance to normal electrical
interference
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Manual override of programmed commands
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Display indication of switch position for each
Channel, i.e. ON or OFF (Digital only)
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Simple summer time to winter time (and vice
versa) adjustment facility (Digital only)
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Random and holiday setting programme
(5733s only)
Sentry Technical
Description
Sentry electromechanical and digital timeswitches enable pre-programmed
commands to be executed on a given circuit. The Sentry time delay switches can be
installed on circuits to energise suitable equipment for between 1 to 7 minutes.
Note:
Inductive loads, particularly fluorescent lamps or energy saving lamps,
place a heavy stress on the switching contacts. If in doubt about the ability of
the timeswitches to directly switch a particular load it is advisable to install the
timeswitch in conjunction with a suitable relay or contactor. If in doubt please
consult the Technical Sales and Service Department for assistance.
Electromechanical
All Sentry electromechanical timeswitches are suitable for DIN rail mounting in
Sentry Consumer Units and appropriate Sentry enclosures.
Quartz controlled units (5807s, 5824s) contain a power reserve of 150 hrs for
accurate time keeping in the event of a mains failure.
3 module timeswitches have an additional insulated ‘parking’ terminal for earth or
other connections.
24 hr units have a minimum switching time of 30 mins and 7 day units 3 hrs.
Digital
All Sentry digital timeswitches are suitable for DIN rail mounting in Sentry Consumer
Units and 2 and 4 module Sentry enclosures.
Sentry digital timeswitches are available in both 1 and 2 module widths.
The 1 channel 1 module digital timeswitch (5733s) provides 50 programming
selections, with random and holiday options. A simple summer to winter time (and
vice versa) adjustment facility is provided. The timeswitch contains a power reserve
of 150 hrs for accurate time keeping in the event of mains failure.
The two module digital timeswitches are available in both one channel (5731s) and
2 channel (5732s) versions. The units are supplied pre-programmed to UK time,
and will automatically change from winter to summer time. The integral battery (with
a 3 year power reserve) maintains the settings until the mains supply is connected.
This feature will allow programming of switching commands prior to installation, if
required.
The 1 channel 2 module digital timeswitch (5731s) provides for 20 programming
selections.
The 2 channel 2 module digital timeswitch (5732s) provides a facility for
independent control of two circuits. A maximum of 20 switching commands can be
programmed for each channel.
All digital timeswitches have a minimum programming time of 1 minute and a
manual override. Commands can be programmed for individual days or for groups
of days.
Electromechanical & Digital Timeswitches