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  Tekmar Relay - 24 V (ac) coil
Tekmar Relay - 24 V (ac) coil
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Tekmar Relay - 24 V (ac) coil

The Relay 003 is a 24 V (ac) coil DPDT (double pole double throw) relay that is used to isolate electrical loads and allow higher current ratings than the on board relays found on tekmar controls. It can be used in applications ranging from doubling the capability of a single output (e.g. energize a pump as well as provide a boiler demand from one output) to allowing a pump to be used that draws more than the control s specified relay rating. This product uses a 24 V (ac) coil that once energized, closes 2 normally open contacts, and opens 2 normally closed contacts.


  • Double Pole Double Throw relay (DPDT)Works with any tekmar control that uses 10K sensors
  • Easy to replace ("ice cube" style - no need to remove wiring)
  • Isolate electrical loads
  • LED to indicate when energized
  • Test tab for easy test and manual override


Packaged weight 0.4 lb. (180 g)
Dimensions 3" H x 1-9/16" W x 2-3/8" D (75 x 40 x 60 mm)
Approvals CSA C US
Power supply (coil) 24 V (ac) +10%, -20%, 50 Hz 2.7 VA, 60 HZ 2.3 VA
Relay contacts (max.) 10 A resistive @ 250 V (ac) N.O., N.C.
10 A resistive @ 30 V (dc) N.O., N.C.
7 A inductive @ 250 V (ac)
Relay contacts (min.) 10 mA 1 V (dc)
Ambient conditions Indoor use only, -40 to 140°F (-40 to 60°C), RH < 85% Non-condensing
Warranty Limited 3 Year Warranty

Current Literature

Product Submittal

Jan 2011 - Present


Installation & Operation Manual

May 2011 - Present


Part Number: 003

2 +$38.65

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