The TD2-2C1-6D is part of a TD2 series of relays from MEC. The relays in this series are designed for use in HVAC applications and come with various features, such as: 2 poles with 1 form C contact, 6A switching capacity, 230VAC or 660VAC coils, 18mm housing size, DIN rail mounting, and 3 independent contacts. They are UL (Underwriters Laboratories) and CSA (Canadian Standards Association) approved and can be used in temperatures ranging from -40°F to 140°F.