Metz 45ct5 with D300

[unclemichael]

I want the D300 work with the Metz 45ct5,is it safe?I need the advise form your experts here.
Best regards!

Uncle Michael

 

[catchlights]

Photo Strobe Trigger Voltages

I have one Metz 60CT4 and two Metz 45CT4, but all using as off camera flash and with radio trigger.