TRANSTECTR~AC Mains APEX IV 120/240 V Split Phase Silicon / MOV Advanced ac main and sub panel non-degrading, low-clamping silicon with robust MOV back-up surge protection for 120/240 Vac split phase configuration, with remote status monitoring (dry contact relay) Silicon diode supression with robust high current capacity MOV Visual and remote status monitoring Plug-in modules Outdoor enclosure Voltage: 120/240 Vac Mount Type: Panel Mount Standards: IEEE Category C High, UL 1449 3rd Edition Other Features: 10 kA silicon, with 30 kA MOV back up, dry contact relay Weight: (kg)4.8 kg Weight: (lb)10.5 Dimensions: (cm)31.8 cm x 26.7 cm x 16.7 cm Dimensions: (inches)12.5 x 10.5 x 6.6 Motorola Part: DSAPEX4120TM