This certificate is issued as verification that a sample(s), representative of production, was assessed and tested and found to comply with the IEC Standard list below and that the manufacturer's quality system, relating to the Ex products covered by this certificate, was assessed and found to comply with the IECEx Quality system requirements. This certificate is granted subject to the conditions as set out in IECEx Scheme Rules, IECEx 02 and Operational Documents as amended.
This Unit verification certificate is issued as verification that the Apparatus identified on page 1, was assessed and tested and found to comply with the IEC Standard list below. This certificate is granted subject to the conditions as set out in IECEx Scheme Rules, IECEx 02 and Operational Documents as amended.
The apparatus and any acceptable variations to it specified in the schedule of this certificate and the identified documents, was found to comply with the following standards:
As this is a Unit Verification Certificate, no QAR is applicable as this certificate is specific to the items listed by serial number or other unique identification.
The Surge Arrester, Model D9024S serve to limit eventual surge voltages in intrinsically safe circuits. Several units for different intrinsically safe circuits may be mounted next to each other. The earth connection can be made via the mounting foot to a normalized metal mounting rail and via a terminal.Electrical data Input circuit (terminals 1 and 2): in type of protection intrinsic safety Ex ia IIC or Ex ia IIIC, only for connection to a certified intrinsically safe circuit with the following maximum values: Ui = 30 V; Ii = 250 mA; Pi = 750 mW; Ci = 2 nF; Li = 1 μH. Output circuit (terminals 3 and 4): in type of protection intrinsic safety Ex ia IIC or Ex ia IIIC. The output parameters are equal to the output parameters of the external intrinsically safe circuit connected to the input circuit. For the determination of the maximum allowed external capacitance (Co) and inductance (Lo), the values of the internal capacitance (Ci) and inductance (Li) shall be taken into account.