A Phase Sequence Relay is built in, which is a nice touch for anyone wiring three phase gear.
Mutlusan Electric Additional Bell Relay 220V
A nice touch is the crisp datasheet for the RS-1M, which speeds up planning.
You can tell the THC-15A model is well made, since the coil feels balanced and does not buzz when energized.
A nice touch is the clear labeling on this General Purpose Relay for quick wiring without confusion.
What stands out about this option is the Warrick Controls badge on the side.
What stands out about the WD3556 is its clear identification, a nice touch when you're troubleshooting quickly.