For the 1406016 4-position Sensor/actuator cable from Phoenix Contact, the datasheet lists the nominal voltage, cable is 300V.
Confirmed by manufacturer, the 300V rating will be on the raw cable itself, without termination. The UL rating for a 4-position M12 connector is actually 30V as per the actual UL FILE E221474. The 60V rating is for a 3-position connector cable per UL FILE E221474.
