I went with PHOENIX because their name usually lines up with dependable relay performance.
LVS Controls EPC-A Emergency Lighting Power Transfer Control Unit
With a color LCD, you can tell which channel is which in seconds, which saves time.
You will find that the label shows KUP-14D15-24=KU, and it looks cleanly printed.
KanSmart is listed as the brand, and you will find that this helps when cross-checking specs online.
What stands out about this is the DIN-rail housing that feels solid and resists vibration pretty well.
When I see the model 7.4.1.7-2, I know exactly which batch I with on site.
You will find that the White-Rodgers brand is clearly printed on the relay's casing for easy identification.
You will find that the auto-off and heavy duty elements keep operation quiet and smooth in setups.
A nice touch is the Emergency Stop Module, which makes the relay feel safer in daily use.
What stands out about this power relay is the smooth motion and steady contact across cycles.