AC-CS components use specially selected resistive winding wire and a special non-flammable silicone coating material to ensure safe and silent fusing operation in overload conditions. This allows them to be used as fusible safety resistors (or AC mains voltage input resistors). Under normal operation these resistors act as an inrush current limiting resistor with a surge capability of up to 3.2kV for AC01-CS, 4kV for the AC03-CS, or 6kV for the AC05-CS. Additionally, resistors from this series fuse “without a bang” when an AC mains voltage of 115VAC or 230VAC is applied. This means that AC-CS components can be used to meet the requirements of safety approval while eliminating the need for additional fuses in series with a standard input resistor.