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Danfoss 103 Mechanical Timeswitch (20940)

1-wire installation. Override facility. EN 60630-2-7.

  • 2 On/Off Periods per Day
  • 2 Pre-Set Programmes
  • 24 Hour Programmable
  • Energy Saving Trust Recommended
  • Override Facility
  • 1-Wire Installation
  • 1 Year Guarantee

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£65.99INC VAT

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Danfoss 103 Mechanical Timeswitch is rated 4.7 out of 5 by 3.
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Rated 4 out of 5 by from surprising availablity Searching for a direct replacement for a very old Drayton timer I was very surprised and pleased that a direct replacement which just slotted into the old backplate was available. Not even any need to unscrew any wiring. Working well.
Date published: 2016-12-22
Rated 5 out of 5 by from Time Clock Ordered at teatime, came next day as promised. Installed that evening. Hot water in abundance. Thanks Screwfix for a good job. ps. Wife happy! Lol.
Date published: 2014-07-17
Rated 5 out of 5 by from danfross103 good reliable product that ihave used several times easy to install
Date published: 2012-04-05
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  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0
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Could this be a direct replacement for a Randall 102

Asked by: 7ony
Yes, they use the same backplate.
Answered by: Danfoss Product Expert
Date published: 2017-02-17

Grundfos timer model 103 Is it safe to use DW40 inside the timer

I have had this timer for a few years now and I find the ON OFF tappets very stiff and hard to move to change the settings. Will I damage anything if I spray the timer mechanism
Asked by: Berns
good afternoon , the Danfoss 103 relies on the frictions to keep the tappets in place , if a lubricant is used they may become to loose and may slip failing to push round the pre-selector wheel in the corner.
Answered by: Danfoss Product Expert
Date published: 2016-02-21
  • y_2017, m_3, d_29, h_5CST
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  • clientName_screwfix
Specification
Brand Danfoss
Central Heating Control Type Timeswitches
Compatible Boiler Type Combi Boilers
Installation Type 1-Wire Installation
Manufacturer Guarantee 1 Year Guarantee
Model No 103 Mechanical
Pack Size 1
Pieces in Pack/Case 1
Product Depth 63 mm
Product Height 135 mm
Product Type Timeswitch
Product Width 106 mm
Zoning Level One

Switch/contact rating: 6(2)A. Max. load: 1.5kW. H x W x D: 135 x 106 x 63mm.

Downloads

Instruction Manual