Component identification, possibly 'transformer switch'

[preston8]

I am in the process of reverse engineering an electrical control box for a spa heater, and have stumbled upon a component that I have not encountered before.

There are two of these components in the system. I was not able to find any information from the part numbers. The coil leads me to believe that this is a transformer. The additional nodes on the sides and the position within the system also lends to a type of switch. Is there such thing as a transformer switch?

 

[berkeman]

Might be relays (contactors) for the pump and the heater element...?

 

[jim hardy]

Search engines are your friends.

I'd wager it's a "Hartland Controls series HCC contactor"
http://www.hartland-controls.com/#!products/c194u
http://www.hartland-controls.com/#!about3/cq5o
part number breakdown here
http://www.hartland-controls.com/#!nomenclature/c14s4

 

[preston8]

Indeed it appears to be a "contactor". I understand what role they play in this system now, thank you.

 

[alphy]

I would suggest conducting further research and experimentation to accurately identify the component. It is possible that it is a transformer switch, which combines the functions of a transformer and a switch. However, it is also possible that it is a different type of component that serves a specific purpose in the spa heater system. To confirm its function, I would recommend analyzing the electrical characteristics and conducting tests to observe its behavior in the system. Additionally, consulting with experts in the field or contacting the manufacturer of the spa heater may also provide valuable insights.