A nice touch is that the Deltrol brand sits right on top, making it easy to spot.
Asea RXSF1 Combiflex Rk 271 019-an Auxilliary Relay -110-125v-ac
What stands out about this ABB device is the clean layout and clear markings for easy hookups.
You will find that the ABB brand on this relay gives it a reliable feel and trustworthy performance.