The D-curve magnetic trip provides a high inrush immunity, making it suitable for motor and transformer branch circuits where the starting surge exceeds what a C-curve would tolerate.
The 10 A continuous rating sets the thermal threshold for overload protection. The D-curve means the magnetic instantaneous trip is calibrated to activate between 10x and 20x In (100–200 A), so it will not nuisance-trip on high inrush currents from small motors, solenoid valves, or transformers. The 2-pole configuration switches both line and load conductors, which is typical for single-phase 240 V or split-phase 277 V circuits.
Deployment context
The S200 series uses a common busbar system and accepts auxiliary contact, shunt trip, and undervoltage release accessories that clip onto the right side. For a panel OEM, the 2-pole width occupies two modular 17.5 mm spaces.