I have a device (a strobe light) which draws up to 15 A for up to 50 ms at a time, but doesn't allow duty cycles over 0.1. This means that the average current is at most 1.5 A.
For instance, if you drive it for 10 ms, it will ignore all inputs for the next 100 ms.
The question now is: how do I choose a power supply for this light? I assume allocating 15 A for this device alone is a major overkill, but how do I know if weaker power supplies will be able to keep the voltage at 24 V during the 50 ms strobe time? Other devices depend on this voltage as well.
The second question is which circuit breaker do I choose for this device? C2 breakers should be able to handle 2 to 20 A for short amounts of time, but how do they handle repeated bursts?
The strobe light is the Smart Vision Lights' ODSXP30: http://smartvisionlights.com/downloads/datasheets/ODSXP30_Datasheet.pdf
The power supply I intended to use is the Weidmuller's CP SNT 250W 24V 10A: http://catalog.weidmueller.com/catalog/Start.do?localeId=en&ObjectID=8708680000
Assume other devices besides the strobe light can use up to 8 A.
To clear up some points from the comments:
The 50 ms pulse duration limit is enforced by the strobe controller integrated into the light. It also enforces the duty cycle limit and therefore the average current limit. That would mean that the max RMS current is 4.75 A.
The 15 A pulse is limited to 50 ms by the strobe controller integrated into the light. The controller also enforces the 0.1 duty cycle / 1.5 A average current limit.
The power supply is a pretty much standard simple DIN rail AC/DC converter for 220/24 V.
Here is a quick simplified schematic: