Introduction
Chapter 1: General rules
Section 1 Qualifying symbols
Chapter II: Contacts
Section 2 Contacts with two or three positions
Section 3 Passing contacts with two positions
Section 4 Early and late operating contacts
Section 5 Contacts with delayed operation
Section 6 Automatic return and non-automatic return
             contacts
Chapter III: Switches, switchgear and starters
Section 7 Single-pole switches
Section 8 Position switches
Section 9 Temperature sensitive switches
Section 10 (transferred to annex A1)
Section 11 Examples of multi-position switches,
             including control switches
Section 12 Block symbols for complex switches
Section 13 Power-switching devices
Section 14 Block symbols for motor starters
Chapter IV: All-or-nothing relays
Section 15 Operating devices
Chapter V: Measuring relays and related devices
Section 16 Block symbol and qualifying symbols
Section 17 Examples of measuring relays
Section 18 Other devices
Chapter VI: Proximity and touch-sensitive devices
Section 19 Sensors and detectors
Section 20 Switches
Chapter VII: Protective devices
Section 21 Fuses and fuse-switches
Section 22 Spark gaps and arresters
Section 23 (transferred to annex A3)
Chapter VIII:Miscellaneous symbols
Section 24 (transferred to annex A4)
Section 25 Static switches
Section 26 Static switching devices
Section 27 Coupling devices and static relays, block
             symbols
Annex A (informative) Older symbols
Annex B (informative) English alphabetic index