The auxiliary contact iOF/SD+OF is a 2-in-1 product with a mechanical selector switch. It can be either SD+OF or OF+OF. The operating current ranges from 100 mA to 6 A at a frequency of 50 Hz to 60 Hz at 240 VAC, and from 100 mA to 3 A at a frequency of 50 Hz to 60 Hz at 415 VAC. The operating current at 100 mA is 24 VDC to 130 VDC. The operating current of 6 A is at 24 VDC, 2 A at 48 VDC, 1.5 A at 60 VDC, 1 A at 110 VDC, and 130 VDC. It features a double make/break or fault indication contact. This product is intended for installations in small commercial enterprises or buildings. It is compatible with the Acti9 series such as iC60, iID, iDPN ARC, iDPN Vigi, iDPN Vigi ARC, iSW, iC60, and iID double connection residual current circuit breakers (RCCB). The screw terminal connection at the bottom allows for rigid copper cables with a cross-section of 1 mm² to 4 mm². For flexible copper cables, the screw terminal connection accommodates a cross-section of 0.5 mm² to 2.5 mm². The rated insulation voltage (Ui) is up to 500 V, and the rated impulse voltage (Uimp) is 4 kV. The dimensions are (W) 9 mm x (H) 90 mm x (D) 73 mm. The color of the product is white (RAL 9003). The pollution degree is 3, and the degree of tropical suitability is treatment 2. The tightening torque for the connection is 1 N·m (bottom) for the screwdriver type PZ1. According to standard IEC 60529, the IP protection rating is IP20. The operating temperature ranges from -35 °C to +70 °C, while the storage temperature ranges from -40 °C to +85 °C. This product complies with the standards EN/IEC 60947-5-1 and GB/T 14048.5 and is certified with the CE and UKCA marks.