Ri4Power Table 2: Determination of selection parameters pursuant to standard IEC/EN 61 439-1, Annex C Functions and features to be determined by the user Reference Standard User in accordance with IEC/EN 61 439-1 to chapter specification1) requirements2) Electrical system 5.5, 8.4.3.2.3, System according to type of earth connection 8.6.2, 10.5, 11.4 Rated voltage Un (V) 3.8.8.1, 5.2.1, 8.5.3 5.2.4, 8.5.3, Overvoltage category 9.1 Annex G Special transient voltages, voltage stresses, temporary overvoltages 9.1 No 3.8.11, 5.4, 8.5.3, Rated frequency fn (Hz) 10.10.2.3, 10.11.5.4 Additional requirements for on-site testing: 11.10 Wiring, operating response and function Short-circuit resistance Prospective short-circuit current at supply terminals Icp (kA) 3.8.6 60% of the external Prospective short-circuit current in the neutral 10.11.5.3.5 conductor value 60% of the external Prospective short-circuit current in the protective circuit 10.11.5.6 conductor value SCPD in the incoming functional unit requirement 9.3.2 Co-ordination of short-circuit protective devices including external 9.3.4 short-circuit protective device details Data associated with loads likely to contribute to the short-circuit current 9.3.2 Protection of persons against electric shock in accordance with IEC 60 364-4-41 Type of protection against electric shock 8.4.2 Basic protection – Basic protection (protection against direct contact) Type of protection against electric shock 8.4.3 – Fault protection (protection against indirect contact) Installation environment Location type 3.5, 8.1.4, 8.2 Protection against the ingress of solid foreign bodies and liquids 8.2.2, 8.2.3 Open-air: IP X3 External mechanical impact (IK) 8.2.1, 10.2.6 Resistance to UV radiation Standard 10.2.4 (only applies to open-air installation unless otherwise specified) specification Standard Corrosion resistance 10.2.2 specification Indoors: –5 °C Ambient temperature – Lower limit 7.1.1 Open air: –25 °C Ambient temperature – Upper limit 7.1.1 40 °C Ambient temperature – Maximum daily mean 7.1.1 35 °C Indoors: 50% at 40 °C Maximum humidity 7.1.2 Open-air: 100% at 25 °C Pollution degree 7.1.3 Industrial 3 Altitude 7.1.4 9.4, 10.12 EMC environment (A or B) Annex J Special service conditions (e.g. vibration, exceptional condensation, heavy pollution, corrosive environment, strong electric or magnetic fields, 7.2, 8.5.4, 9.3.3, fungus, small creatures, explosion hazards, heavy vibration and shocks, Table 7 earthquakes) 1) A grey cell means that there is no standard requirement for functions or features, and users should specify their requirements. 2) With exceptionally difficult applications, it may be necessary for the user to specify more stringent requirements than those set out in this standard. 2 - 47 Rittal Technical System Catalogue/Power distribution
Technical System Catalogue Ri4Power
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