Title: 40 Bender Datablad.pdf.pdf
Connection WF… series measuring current transformersAnalogue output6RCMS460-490_D00067_01_D_XXEN/09.2017Connection W…AB series measuring current transformer (AC/DC current sensitive)The connections k and l at the residual current monitor must not be interchanged.Frequency settingsThe frequency response of the equipment can be set to a linear frequency response (up to the maximum frequency of Hz) if used for fire protection or to a frequency response in accordance with IEC 60990 for personnel protection. For plant protection, the residual current is measured up to the rated system frequency. The figure below shows the corresponding frequency response.Frequency curves12 3 4Response factor = I∆/I∆n (I∆)Residual operating current: Measured value at which the RCMS responds.(I∆n) Rated residual operating current:1 -2 -3 -4 -