Hello Maynor, I'd advise against using the 1000w SPS in your cx4-120 array.  Using unsupported parts on the array can have unpredictable results and could possibly cause you DU.  The CX4 series have more powerful SPs which needed the more powerful SPS.  I highly recommend waiting for the replacement part.  If you need it ASAP the field  CE  could ship the part to you sooner  depending on your service contract.  If you are unsure about your contract contact your service manager for this information.  He may also be able to help you expedite getting the replacement SPS if one is in stock in your area.
any one can help me this issue. i have only for cx3 sps replacement, and for cx4 i see that they are of 1200 watts. Is for a temporary period, because of a failed sps. Menawhile i will request de replenishment, the return the original part. thanks
urgent - can i use sps 1000w of cx3 in a cx4-120 when they have sps of 1200w