Linear solenoid regulations?

[dardeshna]

Team 8 is hoping to use linear solenoids on its off season robot, but the regulations about linear solenoids are a bit vague. The stronghold manual states:

Electrical solenoid actuators, no greater than 1 in. stroke and rated electrical input power no greater than 10 watts (W) continuous duty at 12 volts (VDC)

http://www.mcmaster.com/#linear-solenoids/=147m049

We've looked at the options on McMaster, but are not sure how duty cycle and voltage factor into this.

For example: http://www.mcmaster.com/#69905k117/=147niam

If the linear solenoid has a 10% duty cycle, does that mean we can go with a higher wattage solenoid? What if the solenoid is used more than 10% of the time? 12v vs 24v?

Thanks!