E312 Plant Extension Timer (12 hour version)

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E312/12hr/24V Plant Extension Timer

Product Code: E312/12hr/24V

The E312/12hr/24V is a mains powered single-shot plant extension timer designed to control plant equipment such as heating, lighting or air-conditioning systems outside of normal occupancy hours.  Suitable for installation into a single-gang UK pattress/back box or a control panel, it provides a voltage-free changeover relay output capable of switching loads of up to 16A (4kW) which is activated for a selectable time period.

The E312/12hr/24V is extremely user-friendly with a single touch-sensitive pushbutton used to select the required extension between 2 and 12 hours (selectable in stages of 2 hours).  The plant extension timer has 6 LED indicators to indicate the remaining extension time period and a single LED to illustrate the status of the output relay.  The extension LEDs also have a very low level background illumination which enables the unit to be easily located and controlled in poorly lit areas.

A remote switch input feature is provided so the extension timer can be activated by a remotely located switch or other timer.  The E312/12hr/24V timer runs when the remote input contacts are closed or is paused when the contacts are open, thus enabling multiple E312/12hr/24V units to be linked together to add a delay before the extension period, or to provide activation from a remote location.

The E312/12hr/24V also provides the functionality to pre-set a maximum extension period via an internal thumbwheel to ensure that the end-user cannot select an extension period longer than the authorised user so desires.

24 Volt (/24V)
This extension timer is designed to operate from a 24 volt (AC or DC) power source (instead of the standard operating voltage of 230V AC). This is primarily used for safety or low-voltage systems.

Typical applications:

  • Heating and lighting control
  • HVAC equipment
  • Fan control
  • Immersion heaters
  • Security lighting
  • Community Centers
  • Churches
  • Schools
  • Offices
  • Hired sports courts and rooms
  • Changing rooms
  • Meeting rooms

Download product datasheet (1840Kb)

Product features:

  • 10 Amp switching capacity
  • 5 year guarantee
  • Energy-saving product
  • Money-saving product
  • On / Off control
  • Selectable timer / timeout
  • Suitable for heating control
  • Suitable for humidity control
  • Suitable for ventilation control

£38.50 (ex. VAT)

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manfactured to order - please allow up to 7 working days for delivery

E312 Plant Extension Timer (1 hour version)

E312/1hr/24V Plant Extension Timer £38.50

Product Code: E312/1hr/24V

Our plant extension timer will operate HVAC equipment outside of normal system operating times.  Touch sensitive buttons and intuitive functionality make it easy to use and operate. A remote start facility is included as standard which means that the extension will not commence until a signal is received. read more

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E312 Plant Extension Timer (24 hour version)

E312/24hr/24V Plant Extension Timer £38.50

Product Code: E312/24hr/24V

Our plant extension timer will operate HVAC equipment outside of normal system operating times.  Touch sensitive buttons and intuitive functionality make it easy to use and operate. A remote start facility is included as standard which means that the extension will not commence until a signal is received. read more

Add to basket

manfactured to order - please allow up to 7 working days for delivery

E312 Plant Extension Timer (6 hour version)

E312/24V Plant Extension Timer £38.50

Product Code: E312/24V

Our plant extension timer will operate HVAC equipment outside of normal system operating times.  Touch sensitive buttons and intuitive functionality make it easy to use and operate. A remote start facility is included as standard which means that the extension will not commence until a signal is received. read more

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E312 Plant Extension Timer (3 hour version)

E312/3hr/24V Plant Extension Timer £38.50

Product Code: E312/3hr/24V

Our plant extension timer will operate HVAC equipment outside of normal system operating times.  Touch sensitive buttons and intuitive functionality make it easy to use and operate. A remote start facility is included as standard which means that the extension will not commence until a signal is received. read more

Add to basket

manfactured to order - please allow up to 7 working days for delivery

Power Supply

22V – 26V AC or DC

Output switch rating

16A, 250V AC (resistive)

Output switch type

Changeover relay (volt-free)

Operating temperature

-10°C to +40°C

Suitable for

20mm (or deeper) single-gang UK pattress box

Extension period

2 to 12 hours (2 hour steps)

Guarantee

5 years

Weight

89g

Dimensions

86mm x 86mm x 26.9mm

MSD-154 Tamperproof Screws TX

MSD-154 Tamperproof Screws £1.00

Product Code: MSD-154

A set of 2 replacement tamperproof screws (raised-countersunk M3.5 x 25mm) that are compatible with all our electrical faceplate style products, as well as other products which use a British Standard faceplate form factor. read more

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MSD-155 Tamperproof Screwdriver

MSD-155 Tamperproof Screwdriver TX

Product Code: MSD-155

Tamperproof screwdriver for MSD-154 tamperproof screws.  Required to gain access into the Wireless Set-Back Thermostat (W-SBT-C) and other products secured with MSD-154 screws. read more

MSD-200 Single-Gang Surface Pattress Box (32mm deep)

MSD-200 Single-Gang Surface Pattress Box (35mm deep) £1.50

Product Code: MSD-200

A 35mm surface-mounted British Standard pattress box, ideal for use when retrofitting our ranges of wall mounted extension timers, humidistats and time delay switches. read more

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TDS3 Time Delay Switch for Lighting Control - automatically turns lights off ensuring they are not left on, wasting energy and money

TDS3 Time Delay Switch 3 Wire £20.50

Product Code: TDS3

The TDS3 time delay switch provides timed control for lighting, heating and ventilation loads. They are simple to install and easy to operate.  The 3-wire switch requires a Neutral and Live connection (but does not require a minimum load to be connected) and can be used either to replace an existing light switch, or on… read more

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