You will find that the THC-15A model plays well with common DIN rail sockets, so setup stays clean without extra adapters.
GE 12HFA51A42H AUXILIARY RELAY 125V TYPE HFA – NEW (OLD STOCK)
A nice touch is the General-Electric name, giving the relay a familiar, trusted look.
A nice touch is that it's led compatible, so you can show status at a glance.
A nice touch is the General-Electric nameplate, which helps when you are matching.
What stands out about this heavy duty relay is the thicker terminals, which make wiring feel more secure overall.
This heavy duty relay has a satisfying heft, which makes me confident it will last through frequent use.
The G3P-210B keeps things manageable in my shop, since the part number is unambiguous and easy to log.