Technical Section WAGO

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33 – 4/0 14.48 185 350 18. Under normal operating conditions, direct clamping (i.08 17.82 30., directly connecting conduc- tor the terminal block’s current bar) pro- vides optimal contact quality, because all risk factors arising from anti-splaying methods are prevented. Ferruled conductor cross sections specified for individual products are based WAGO’s Variocrimp square crimping technology. In this case, recommend using either solid copper conductors fine-stranded copper conductors with properly crimped, tin-coated copper ferrules copper pin terminals.8 20. Special requirements apply only special application areas exposed extremely cor- rosive atmospheres.3 VDE 0113, Part 06. As with solid copper conductors, the fine strands are crimped into dense inner core.1. The most common way branching one conductor into two three conductors.6 500 21.1.07 60204-1:2006 / IEC 60204-1:2016, Section 13.64 12.22 120 14.5 www.05 – 400 19. Gas-tight, crimped twin ferrules may used, provided the ferrule inserted all the way into the clamping unit and that there suf- ficient clearance and creepage distance between adjacent potentials.1 600 23.e. • Where re-wiring required, only the con- ductor changed removed from the clamping point, all other conductors remain safely clamped. WAGO offers and 4-conductor terminal blocks, making additional jumpers unneces- sary. WAGO rail-mount terminal blocks offer differ- ent solutions increase the number of clamping points.5 250 15.03 Dimensions for Class flexible conductors only (IEC 60228 A) NOTE: The diameters the largest rigid and flexible conductors are based Table and Table IEC A/IEC 60228 and ASTM B172-71 [1], IECA Publication S-19-81 [2], IECA Publication S-66-524 [3], well IECA Publi- cation S-66-516 [7] for AWG conductors.1) requires that: Clamping units must able connect unprepared conductors.08 To defined the corresponding product standard 70 13. This WAGO principle the basis for number of other technical and economic advantages: • Each conductor may terminated or removed without affecting previously con- nected conductors. One Conductor per Clamping Unit A number DIN VDE, EN, IEC directives mandate recommend that only one con- ductor must connected per clamping unit.54 95 12.6.1 1/0 9.17 13.68 26.wago. In accordance with DIN VDE 0611, Part 4, 02.com WAGO Rail-Mount Terminal Block Systems Technical Information The IEC 60999-1/EN 60999-1/VDE 0609-1 Specification (Section 7. . Other VDE, and IEC specifications also recommend the connection only one con- ductor per clamping unit, unless the clamping unit specifically tested and approved for the connection several conductors, for example: VDE 0609, Part 12.1 2/0 11.1 3/0 12.16 22.00 60999-1:2000/ IEC 60999-1:1999, Section 7.34 19.9, multi-level distribution rail-mount terminal blocks must dimen- sioned that single (solid, stranded or fine-stranded) conductor the nominal cross section can connected each ter- minal point.54 15. Tip-bonded conductor Ultrasonically bonded conductor Crimped pin terminal (gas-tight), preferably made cop- per with tin-plated surface Tin-plated copper ferrule (gas-tight crimped) II.9 15.2 300 16. Anti-splaying methods require terminal block one size larger than the nominal cross section the conductor terminated.42 24. Occasionally, conductor anti-splaying pro- tection may required, including various methods (see illustrations below). Per IEC 60999-2, Table 1: Rated Cross- Section Theoretical Largest Conductor Diameter Connectable Conductor Metric AWG/kcmil Rigid Stranded Fine- Stranded a) Gauge Rigid Stranded Fine- Stranded mm² Rigid Flexible 50 9.91, Section 3. • Each conductor clamped independently. • Any conductor size combination can be connected.1.05 240 20. Crimping prevents ingress aggressive atmospheres (depending the ppm con- centration), which can diffuse into the con- ductor bundle along the individual strands and deposit between individual strands and the clamping point.1 VDE 0660, Part 600, 06. One conductor per clamping unit therefore recommended meet the safety require- ments these relevant specifications.01 150 16.57 300 23.12 61439- 1:2011 IEC 61439-1, Section 8