Packard PR340 DPDT 24 Volt Coil Switching Relay

Good price, easy to install and works well. How long it will last, I don't know.

I use this relay with a delay timer for my residential low pressure steam boilers. It helped eliminate short cycling of the boilers and reduced gas usage.

works

A/C is working again. We'll blower motor is no longer stuck on or off. Thank you

The relay that I received was marked "Packard PR340" as per the description but it had four contacts on each side instead of three. The picture is not accurate. Initially upon receiving it I was disappointed - I searched for quite a while to find one with three contacts on each side since that was what I was replacing and expected that this part would not work. However, the "extra" bottom two contacts are duplicates of the coil contacts (perhaps for daisy-chaining additional relays?) and can be ignored or, if it doesn't fit in a sockets with them in place, etc., they could be removed to no ill effect. The relay fit into my socket without making any modifications and the extra contacts just sit exposed at the bottom. Not a concern, it's only 24v AC. The DPDT wiring is such that the top and middle left contacts are the common / input for the switch, the right contacts are normally open, and the center contacts are normally closed. The bottom two (or four as the case may be) are the coil contacts. The plastic housing is angled below the coil contacts.

Tried another brand and also this one that says it’s a direct replacement for my existing relay. Works intermittently and can be heard making terrible relay clicking almost electrical noises which is the whole reason I replaced my old one. Just like the other I tried, these come with very little in terms of specs and amp rating and this one lasted even less time than the other I tried.

Initially i bought total of 6 relay's, and installed most of them but one did fail within a week and was replaced. I didn't think I would buy any more however after 6 months of the remaining units working fine. I purchased 10 more and they appear to be working great for a thermostat interface. - It has now been 2 years and no more have failed.

exactly as described. fits good. have not had a problem yet. arrived earlier