Small systematic explanation of our products.

Casing Power connection Max VA Simple firmware Advanced Firmware
Alu 1 x 10A 2300 PRO ADV PRO, IO PRO
2 x 10A 4600 POWER ADV POWER, IO POWER
2 x 10A + 19 inch 4600 POWER 19" ADV POWER 19", IO POWER 19"
2 x 10A Redundant 2300 Redundant ADV Redundant, IO Redundant
2 x 10A Redundant
19 inch
2300 Redundant 19"  ADV Redundant 19",
IO Redundant 19" 
   100-240VAC 50-60Hz    
Terminals - relay Advanced Firmware
HUT Low Voltage
8-30VAC / 10-40VDC
Plug-in HUT2-LV
Screw HUT2-LV-S
Separable / screw HUT2C-LV
Separable / screw HUT3-LV
Separable / screw HUT3-T-LV
High Voltage
100-240VAC 50-60Hz
Plug-in HUT2-HV
Screw HUT2-HV-S
Separable / screw HUT2C-HV
Separable / screw HUT3-HV
Separable / screw HUT3-T-HV
     
Terminals - relay w/o Firmware
HUT
EXtender
Low Voltage
8-30VAC / 10-40VDC
Plug-in HUT EX LV-P
Screw HUT EX LV-S
High Voltage
100-240VAC 50-60Hz
Plug-in HUT EX HV-P
Screw HUT EX HV-S