USEFUL INFORMATION www.krausnaimer.com USEFUL INFO 246 MAIN CATALOG Comparison of mounting holes PG versus metric PG - Gewinde PG 7 PG 9 PG 11 PG 13,5 PG 16 PG 21 PG 29 PG 36 PG 42 PG 48 Ø Montagebohrung 13 15,7 19 21 23 28,8 37,5 47,5 54,5 59,8 Ø Montagebohrung 12,5 16,5 20,5 25,5 32,5 40,5 50,5 63,5 Metr. Gewinde M12 x 1,5 M16 x 1,5 M20 x 1,5 M25 x 1,5 M32 x 1,5 M40 x 1,5 M50 x 1,5 M63 x 1,5 Utilization category of switchgear (References: EN 60947 und EN 60204) AC operation Frequently operation Occasional operation Type of application AC-20A AC-20B Connecting and disconnecting under no-load conditions AC-21A AC-21B Switching of resistive loads, including moderate overloads AC-22A AC-22B Switching of mixed resistive and inductive loads, including moderate overloads AC-23A AC-23B Switching of motor loads or other highly inductive loads AC-3 Squirrel-cage motors: starting, switches OFF motors during running time AC-15 Control of AC electromagentic loads (> 72 VA) DC operation Frequently operation Occasional operation Type of application Prospective breaking current DC-13 Control of DC electromagnetics 6 x Ie DC-20A DC-20B Connecting and disconnecting under no-load conditions - DC-21A DC-21B Switching of resistive loads, including moderate overloads 1,5 x Ie DC-22A DC-22B Switching of mixed resistive and inductive loads, including moderate overloads (e.e. shunt motors) 4 x Ie DC-23A DC-23B Switching of highly inductive loads (i.e. series motors) 4 x Ie Conversion table american wire gages (AWG) into mm² (Reference: EN 60947-1) ISO-wire gages (mm²) Relation between AWG/MCM-Sizes and metrical wire gages AWG/MCM-Size Converted metrical wire gage (mm²) 0,2 24 0,205 - 22 0,324 0,5 20 0,519 0,75 18 0,82 1 - - 1,5 16 1,3 2,5 14 2,1 4 12 3,3 6 10 5,3 10 8 8,4 16 6 13,3 25 4 21,2 35 2 33,6 50 0 53,5 70 00 67,4 95 000 85 - 0000 107,2 120 250 MCM 127 150 300 MCM 152 185 350 MCM 177 240 500 MCM 253 300 600 MCM 304 All dimension in this catalog are in mm The rights to changes and misprints are reserved. © Kraus & Naimer GmbH / 02.2019 PG Thread Ø Mounting drill hole Ø Mounting drill hole Metric thread < Back to the catalog directory >
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