Horstmann E7BX Data Sheet
E7BX
Water Heating Boost Control
This simple boost control is intended for use with electric
water heating systems where the immersion heater(s) are
controlled by the Electricity Company's Radio Teleswitch,
Radio Telemeter or Tariff time switch.
The E7BX allows the user to 'top up' the hot water if extra
supplies are needed during the day time with the main water
heating taking place overnight using off peak electricity.
Ÿ Designed to accept wiring from both 24 hour and off peak
circuits
Ÿ Adjustable 0-120 minute run-back boost timer
Ÿ Simple to install and use
Specification
E7BX
Ÿ Simple to install and use
Ÿ Boost period adjustable between 0 and 120 minutes
Ÿ Neon indicator shows when boost timer is running
Ÿ Can be used with one or two immersion heaters
Ÿ Suits earth-leakage circuit breaker installations
CONTACT RATING 13 Amps 230V AC
Suitable for
immersion heaters up
to 3kW
CONTACT TYPE Disconnection to 'off
peak' immersion
heater on double-pole
switch
POWER SUPPLY 230 V 50Hz
POLLUTION DEGREE Degree 2
ENCLOSURE PROTECTION IP30
SHOCK PROTECTION Class 1
LIVE PARTS Enclosed
OPERATING TEMPERATURE 0 °C to 35 °C
RANGE
TIMER BOOST DURATION 0-120 minutes
DIMENSIONS 170 x 115 x 56 mm
BRITISH STANDARDS Designed to meet BS-
EN 60730-2-7
BEAB APPROVED
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. P81260 Issue 1
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