Small systematic of our products.

Casing Power connection Max VA Simple firmware Zero Cross Advanced Firmware
Alu 1 x 10A 2300 PRO ZX ADV PRO,
IO PRO
2 x 10A 4600 POWER ZX POWER ADV POWER,
IO POWER
2 x 10A + 19 inch 4600 POWER 19" ZX POWER 19" ADV POWER 19",
IO POWER 19"
Terminals - relay Advanced Firmware
HUT Low Voltage
8-30VAC / 10-40VDC
Separable / screw   HUT2C-LV
Separable / screw   HUT3-LV
High Voltage
100-240VAC 50-60Hz
Separable / screw   HUT2C-HV
Separable / screw   HUT3-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