E812 Two Stage Thermostat

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E812/RS Two Stage Tamperproof Thermostat

Product Code: E812/RS

The E812/RS is a high quality vandal-resistant 2-stage tamperproof thermostat designed to accurately control fan convectors in schools, public or commercial buildings to within 0.5°C.

The E812/RS has two stages of control. Below a pre-selected temperature the thermostat will control the high-speed fan to bring the room quickly up to temperature. Once the unit has achieved this level it switches to the low-speed fan for normal daytime use, regulating the room temperature up to the pre-selected temperature setpoint.

Once the room temperature eventually reaches the chosen temperature setpoint the fan is turned off. This makes for quieter operation during normal daytime occupancy periods with the added benefit of rapidly bringing the room up to temperature when the heating is initially switched on.

Remote Sensor (/RS)
This thermostat is designed to be operated in conjunction with a remotely located temperature sensor and therefore does not include the integral temperature sensor within the thermostat body. This provides additional flexibility so that the temperature sensor can be optimally located in the room while the thermostat body is mounted where it is necessary to do so, for example beside a heater or in a riser cupboard.

A choice of standard remote sensors are available, but we can also accommodate to your custom enclosures – please contact us to discuss your requirements with one of our design engineers.

* NOTE – A remote sensor MUST be selected from the accessories section in addition to the main thermostat unit.

Download product datasheet (1888Kb)

Product features:

  • 10 Amp switching capacity
  • 2-stage control
  • 5 year guarantee
  • Energy-saving product
  • For use with a remote sensor
  • Money-saving product
  • Suitable for heating control
  • Tamper-proof features
  • Very robust and rugged product

£85.00 (ex. VAT)

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

E812 Two Stage Thermostat

E812 Two Stage Tamperproof Thermostat £90.00

Product Code: E812

The E812 is a high quality vandal-resistant and tamperproof 2-stage thermostat designed to accurately control fan convectors in schools, public or commercial buildings to within 0.5°C. read more

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Power supply:

85V—265V AC 50—60Hz (live/neutral/earth)

Output switch rating:

10A, 250V AC 50Hz (resistive)

Output switch type:

On/Off: Single Relay (volt-free)
High/Low Speed: Changeover relay (volt-free)

Temperature control:

+12°C to +26°C

Temperature differential:

0.25°C to 4°C

2nd stage temperature adjustment:

2°C to 10°C (below the Setpoint)

2nd stage differential:

0.15°C over 5 years

Sensor drift:

0.15°C over 5 years

Guarantee:

5 Years

Weight:

0.341Kg

Dimensions mm:

120mm x 95mm x 35mm

MSD-150 Temperature Sensor

MSD-150 Air Temperature Sensor £14.00

Product Code: MSD-150

A thermistor potted in a plastic enclosure and coated with a black rubberised finish, supplied with 80mm flying leads.  Can be installed into a 12.5mm hole using the supplied nut or into an existing PG7 thread. This is the standard temperature sensor used in the entire Robust Range of Thermostats. read more

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MSD-152 Tamperproof Screwdriver

MSD-152 Tamperproof Screwdriver £12.80

Product Code: MSD-152

Tamperproof screwdriver for MSD-153 tamperproof screws.  Required to gain access into the entire Robust Range of Tamperproof thermostats and humidistats. read more

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MSD-224 Temperature Sensor (internal box)

MSD-224 Air Temperature Sensor (internal box) £18.00

Product Code: MSD-224

An MSD-150 temperature sensor installed in a white plastic box and connected to a terminal block.  Pre-drilled mounting holes allow easy installation anywhere internally within a building. read more

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

MSD-370 Air Temperature Sensor (internal faceplate)

MSD-370 Air Temperature Sensor (internal faceplate) £18.00

Product Code: MSD-370

An MSD-150 temperature sensor installed in a white single-gang British Standard faceplate and connected to a terminal block for convenient remote temperature measurement of a room. Supplied with 2 x 25mm M3.5 fixings.  A surface-mounted pattress box is available separately as an accessory. read more

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