With Phoenix Contact, there is a sense that every small detail has been considered for practical use in the field.
Phoenix Contact Relay Module, 2940391, EMG 17-REL/KSR-24/21-21-LC, (NOS)
If you like trusted names, Phoenix Contact is one you will find that many electric without hesitation.
What stands out about this small relay is the PHOENIX badge, which many electricians already trust.