I55AP318F20711000S
i550 protec, NEMA 4X / IP66, 18.5 kW, 25.0 hp, 3ph 400/480V, Standard I/O, no safety technology, extension box and switch, without diagnostic module
I55AP318F20711W00S
i550 protec, NEMA 4X / IP66, 18.5 kW, 25.0 hp, 3ph 400/480V, Standard I/O, no safety technology, extension box and switch, WLAN module