I55AP137A2A701000S
i550 protec, NEMA 4X / IP66, 0.37 kW, 0.50 hp, 1ph 120V, Standard I/O, integrated safe torque off (STO), extension box and switch, without diagnostic
I55AP137A2A701W00S
i550 protec, NEMA 4X / IP66, 0.37 kW, 0.50 hp, 1ph 120V, Standard I/O, integrated safe torque off (STO), extension box and switch, WLAN module