Continuous Power Model D with no Suffix--:D20-48 & D24W-120W:
These rating are applicable for supplying continuous electrical power (a variable load)in lieu of commercially purchased power. There is no limitation to the annual hours of operation and this model can supply 10% overload power for 1 hour in 112 hours.
Standby Power Model D with Suffix(s)--D22S-53S & D24WS-120WS:
These rating are applicable for supplying continuous electric power (at variable load)in the event of a utility power failure. No overload is permitted on these ratings. The alternator on this model is peak continuous rated (as defined in ISO828-3) at 27℃.
These rating are applicable for supplying continuous electrical power (a variable load)in lieu of commercially purchased power. There is no limitation to the annual hours of operation and this model can supply 10% overload power for 1 hour in 112 hours.
Standby Power Model D with Suffix(s)--D22S-53S & D24WS-120WS:
These rating are applicable for supplying continuous electric power (at variable load)in the event of a utility power failure. No overload is permitted on these ratings. The alternator on this model is peak continuous rated (as defined in ISO828-3) at 27℃.