The first number indicates the maximum stand-by output in kilowatts (kW) that the generator is rated at.
The second number is the prime kilo-Volt-Amps (kVA) that the generator is rated at.
The next part of the data shown indicates whether or not the generator is single phase or
three phase capable and what the prime single phase kW rating is if applicable.
MQ Power Products display a number on the right and left sides of the generator enclosure that indicate the prime kVA of the generator.
i.e. DCA-100 would have the number "100" on the sides; therefore this indicates 100kVA.
All three phase generators are rated with a .8PF (PF = Power Factor) so that
100kVA multiplied by .8PF would be 80kW as a prime rating.
Note that single phase generators are typically rated with a 1.0 (Unity) Power Factor,
some exceptions exist such as the MQ Power DCA-44SPX rated at .8PF
This is a DCA-25, 25kVA, 20kW Three Phase Generator that is also capable of 14kW
Single Phase output.
This is a DCA-300, 300kVA, 240kW Prime Output - 264kW Stand-By Output Generator
Three Phase Output only 240V or 480V.