The model value is N/A, and that can work for you when buying a general-purpose relay without a number.
Federal Pioneer Alarm Resistor Unit DDR2-4 480 V 3 PH 3 W
A nice touch is the drum switch, and you will find that it adds a satisfying sense of control.
What stands out about this relay is the AMERICAN ZETTLER / MCE branding, and that can matter to many.