Horstmann Electronic 7 Data Sheet
Electronic 7 Series 3
Immersion Heater Control
The Horstmann Electronic 7 is the digital equivalent to the
renowned Horstmann Economy 7 Quartz timer and is
designed for use with Economy 7 and other more recent
cheap rate tariff arrangements.
Where hot water is heated by off peak electricity it is
important that the immersion heater controller offers ease
of use coupled with the most efficient performance. This is
where the Horstmann Electronic 7 Series 3 controller comes
into its own.
Ÿ Compatible with most cheap rate or off peak tariff
structures, the Electronic 7 is fully interchangeable with
all past and present Horstmann Economy 7 controllers
Ÿ Built in clock – automatic Summer / Winter time change
Ÿ Up to three off peak settings per 24 hours
Ÿ Programmable and manual boost
Ÿ Programme security feature
Ÿ Suitable for use with single, dual or twin element
immersion heaters
Specification
Electronic 7 Series 3
The Electronic 7 is designed to control one or two 3kW
immersion heaters, utilizing off peak electricity tariffs to
provide a tank full of hot water each morning.
Additional off peak settings are available to take
advantage of the latest off peak tariff arrangements.
A boost button is provided to top up the hot water if
supplies are running low and an automatic boost
setting to provide a pre-programmed daily boost is also
available.
The Electronic 7 Series 3 is interchangeable with
previous Economy 7 controllers using the standard size
Economy 7 wall box and plug in connectors.
A lithium battery provides more than adequate back up
to maintain time and programme settings in the event of
a power failure.
CONTACT RATING 13 Amps 230V AC
Suitable for
immersion heaters up
to 3kW
CONTACT TYPE Micro-disconnection
on control
Disconnection to
immersion heaters on
double-pole rocker
switch
SUPPLY 230V 50Hz
POLLUTION DEGREE Degree 2
Normal situations
MOISTURE PROTECTION Ordinary
ENCLOSURE PROTECTION IP30
SHOCK PROTECTION Class 1
LIVE PARTS Enclosed
OPERATING TEMPERATURE 0°c to 35°C
RANGE
BATTERY RESERVE Approximately 2 years
total power
disconnection
DIMENSIONS 170 x 115 x 60 mm
(Excluding rocker
switch)
CLOCK AM/PM Indication
Winter/Summer
indication
PROGRAMME OPTIONS OFF PEAK - Up to 3
On/Off time periods
BOOST -
Programmable
automatic boost and
one hour manual
boost
BEAB APPROVED Yes
South Bristol Park, Roman Farm Road, Bristol BS4 1UP
t: +44 117 978 8700 | f: +44 117 9788701 | e: sales@horstmann.co.uk | www.horstmann.co.uk
Horstmann is a trading name of Secure Controls (UK) Ltd., a wholly owned subsidiary of Secure Holdings PTE Ltd.
Registered office: Secure House, Moorside Road, Winnall Trading Estate, Winchester, Hampshire, SO23 7RX. Registered in England No. 457553
© January 2013: Secure Controls (UK) Ltd: All rights reserved. The company reserves the right to alter product specifications without notice.
Part No. P81254 Issue 7
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