Shindaiwa DGK60D Owner's Manual page 23

 For single-phase load:
 Terminal voltage is 240/480 V.
L1
(2) Single-Phase Three-Wire Output Terminal and Receptacle
 For single-phase three-wire type load:
 U-W terminal voltage is 240 V.
 U-N terminal voltage is 120 V.
 W-N terminal voltage is 120 V.
 For single-phase 240 V load:
N
GROUND
 Single-phase 120 V receptacle, single-phase 240/120 V receptacle
CON1
Load
CON2
Load
L2 L3
Load
Load Load
 For single-phase 120 V load:
U W
Load
CON3
CON5
Load
CON4
Load
Load
20
N
GROUND
N U
GROUND
Load
CON6
Load
W
Load
CON7
Load