What stands out about the black color is that it suits a wide range of enclosure styles without drawing focus.
Banner ES-FA-9AA Safety Relay, 24 Vac/dc – NEW
A nice touch is the ABB branding, which gives the relay a simple and classic look on the rail.
What stands out about the 2956026 EMG 17-REL/KSR/120-21 is the way the pins line up cleanly.