Trip Curve D and the 1 A rating
The S201-D1: The 1-pole configuration switches one line, so it fits single-phase circuits or DC applications where only one pole needs protection.
The compact 1-pole footprint (roughly 17.5 mm wide) leaves room for additional breakers or accessories in the same row. Thermal-magnetic trip mechanism combines a bimetal element for overload protection and a solenoid for short-circuit response.
