National foreword
Committees responsible
List of symbols
Chapter I : General notes
Chapter II : Contacts
Section
1 Qualifying symbols
2 Contacts with two or three positions
3 Passing contacts with two positions
4 Early and late operating contacts
5 Examples of contacts with intentional delay
6 Examples of spring return and non-spring return
(stay put) contacts
Chapter III : Switches, switchgear and starters
7 Single-pole switches
8 Position and limit switches
9 Temperature sensitive switches
10 Speed change sensitive contacts, mercury and
levelling switches
11 Examples of multi-pole and multi-position switches
12 Block symbols for complex switches
13 Switchgear and controlgear
14 Block symbols for motor starters
Chapter IV : Electromechanical all-or-nothing relays
15 Operating devices
Chapter V : Measuring relays and related devices
16 Block symbols and qualifying symbols
17 Examples of measuring relays
18 Other devices
Chapter VI : Proximity and touch-sensitive device
19 Sensors and detectors
20 Switches
Chapter VII : Protective devices
21 Fuses and fuse-switches
22 Gaps and arrestors
23 Fire-extinguishers
Chapter VIII: Miscellaneous symbols
24 Igniters and flag-indicators
Appendix A : Older symbols for contacts, switchgear
and protective devices
A1 Contacts
A2 Switchgear
A3 Fuses