SMC Flex units are ideal for starting and stopping large electric motors smoothly, protecting equipment from mechanical stress and electrical surges. They are widely used in water treatment, mining, heavy manufacturing, HVAC, and pump control systems.

This series supports 200–690 V AC and 5–1250 A current ratings. Frame sizes vary to suit applications ranging from small motors to high-horsepower industrial systems.

Part numbers follow this format:

150‑F251NBD
│    │ │ │
│    │ │ └─ Coil/Control power options (D = 100–240 V AC)
│    │ └─ Voltage class (N = 200–480 V)
│    └─ Current rating (251 = 251 A)
└─ Product series (150‑F = SMC Flex)
  

Yes. SMC Flex supports a range of optional communication modules (e.g., EtherNet/IP, DeviceNet, ControlNet, PROFIBUS, RS-485) and is configurable via the standard DPI port and optional Bulletin 20 communication cards.

Configuration is available directly through the LCD keypad or via Connected Components Workbench (CCW) software over USB/Ethernet. Diagnostic data, fault logs, and parameter settings can be downloaded or monitored in real time.