DR Series
The Xantrex DR-Series sine wave inverters offer a 3-stage battery charger and automatic AC transfer relay. This powerful series is appropriate for remote medium-sized off-grid and utility back-up systems for both residential and commercial usage. 
Wall or shelf-mount: 7.3" deep (18.4cm), 21.5" wide (54.6cm), 8.5" high (21.6cm)
Shipping weight: 38,48, or 52 pounds, depending on model.
Xantrex DR1512 1.5 kva-12 vdc input, 120 vac 60 Hz output 
with 70 amp charger and 30 amp AC transfer relay
$ 850*
list price
Xantrex DR1524 1.5 kva-24 vdc input, 120 vac 60 Hz output
with 35 amp charger and 30 amp AC transfer relay
$ 850*
list price
Xantrex DR2412 2.5 kva-12 vdc input, 120 vac 60 Hz output
with 120 amp charger and 30 amp AC transfer relay
$ 1100*
list price
Xantrex DR2424 2.5 kva-24 vdc input, 120 vac 60 Hz output
with 70 amp charger and 30 amp AC transfer relay
$ 1100*
list price
Xantrex DR3624 3.6 kva-24 vdc input, 120 vac 60 Hz output
with 70 amp charger and 30 amp AC transfer relay
$ 1350*
list price