This Harmony RPM mounting adapter for DIN rail with flat pins is compatible with plug-in relay RPM with 4 C/O." "This mounting accessory is ideal to secure the relay in place." "Its simple modular design facilitates post installation servicing, modification and adaption of machines by non-specialists." "It can be matched with any relay in RPM range." 0 0 0 0 0 0 0 0 0 0 0 0